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SCPilot
SCPilot
12:02 AM
Ah that's where I heard it from before.
 
JDługosz
JDługosz
@DaaaahWhoosh we’ve gone over changing a planet’s spin. Asteriod impacts is not the way to do it.
 
SCPilot
SCPilot
Hm?
 
Shalvenay
Shalvenay
asynchronous conversations haha
 
SCPilot
SCPilot
Ah okay.
 
JDługosz
JDługosz
3
A: Why would a planet be spinning fast enough to fly apart?

ThucydidesConsider that the impact of a Mars sized protoplanet on the Earth caused the spin to increase to today's 24hr and created the moon. So to radically increase the spin of a planet, you would need to apply far more energy. Sadly, the sorts of astronomical objects which could provide energy on the...

 
SCPilot
SCPilot
12:11 AM
Well, maybe a fleet of ships heading at warp speed or even going faster than light hitting the planet might cause the planet to spin so fast that it would fly apart especially if the ships have nukes aboard them.
Of course this is a longshot scenario and it would only have a 1% chance at actually working.
 
JDługosz
JDługosz
1
Q: Is there any way to tidally lock Earth to the Sun in its current state?

wollingtonI've been toying around with the idea of a tidally locked Earth. Spent the better majority of today figuring out weather patterns, habitable zones, etc, but I missed one big detail: How the hell did the Earth get tidally locked? At first I toyed with the idea of a meteor hitting the planet with t...

science-based planets space alternate-earth
And here we have something similar but not as extreme:
16
Q: What would it be like to live on a rapidly rotating planet?

SpoonyBardOn Earth we don't really notice many effects of the Earth spinning, apart from the day-night cycle. It took a long time for people of Earth to realise that it even was spinning, but there are measurable effects (differences in gravity, the Coriolis effect). Would it be more obvious if the Earth ...

science-based planets physics alternate-worlds
Actually 1000× faster is more extreme than just fast enough to orbit.
 
SCPilot
SCPilot
12:44 AM
Well, it's getting late, and I have to head on out. Goodnight y'all!
 
 
6 hours later…
JDługosz
JDługosz
6:36 AM
14
Q: Can someone explain this joke about the Primer movie

enkryptorThere is a question on the Science Fiction & Fantasy SE: This request comes from a friend of mine... She has not seen the movie, but only heard somebody describe it to her. Can anybody help my friend by identifying the story? One of the comments is: please note: identifying the mov...

jokes
For an establishment that has a TV on all the time, like a lunch spot, how about an app that plays clips from Primer in random order, for as long as you leave it running? (See how long before anyone notices)
 
Journeyman Geek
Journeyman Geek
6:48 AM
lol
 
 
4 hours later…
dot_Sp0T
dot_Sp0T
10:39 AM
@James so what's it gonna be? :D
 
Secespitus
Secespitus
10:53 AM
@JDługosz You should add that the question even made it to the HNQ. Congratulations
 
dot_Sp0T
dot_Sp0T
@inappropriateCode yo, how's things?
 
 
2 hours later…
Pedro Et Cetera
Pedro Et Cetera
1:08 PM
@JDługosz it's gonna be pretty hard science. I'm looking to create a neo-punk world with magic, but everything can be explained with the hard science of my universe
 
Green
Green
@PedroEtCetera Just a status update: I'm still working on getting the ocean currents and prevailing winds. There's a ton of stuff to learn.
 
DaaaahWhoosh
DaaaahWhoosh
1:28 PM
oh, I forgot to brag about this, but a couple days ago I got the Populist badge!
 
Enigma Maitreya
Enigma Maitreya
@Green Does your model account for the mass of "life" in the medium? Most notably water? That takes energy to move it, so what ever the energy source is for the current is going to be reduced by the mass of the life forms that exist in that current.
 
Secespitus
Secespitus
@DaaaahWhoosh Congratulations
 
Green
Green
@EnigmaMaitreya The mass of life on these scales is insignificant. I'm working with the teratons of water involved in the currents. The mass of all marine life doesn't even come close to that.
Correction: I'm working with 5.972 × 10^24 kg of water on Earth.
Solar energy fuels the current flows on this planet I'm working with. Solar heats the air and water, creating temperature differentials that induce flow. The prevailing winds have a significant effect on currents. Salt levels and temperature have a large impact on the deep ocean currents.
 
Feeds
Feeds
0
A: Sandbox for Proposed Questions

joao sturzaCould Pinocchio fix the economy by running for president? so, heres the scenario : If he ran for president, he would have to lie, which would make his nose grow, then he could cut his nose and sell the wood as fuel/timber which would give America an infinite energy/building material/ supply ,wic...

 
DaaaahWhoosh
DaaaahWhoosh
1:46 PM
Skeptics fact of the day: ignoring bullies doesn't work
 
Bellerophon
Bellerophon
Does bullying the ignorant still work?
 
DaaaahWhoosh
DaaaahWhoosh
nope, now they're too stupid to care
 
Enigma Maitreya
Enigma Maitreya
@Green I tried to get a rational value for the biomass in the oceans and ran out of interest in attempting to get a common unit of measure and besides the "fish" line gave only a "dry weight" value of for fish at ~2,000,000,000 tonnes I assume that is the reported weight of harvested fish. So ..... New subject so there is no subsurface volcanic activity and no plate tectonics that can impart energy? Coastal Land Slides into the ocean (Hawaiian Islands as an example)?
As a side note, Blue Whales had both values Dry Weight and Wet Weight. But we pretty much know how many exist in the oceans.
 
James
James
2:04 PM
@dot_Sp0T I was going to look but then I started playing inquisition instead.
 
Green
Green
@EnigmaMaitreya Again, it's scale. I'm modeling at $4\degree$ arcs of the planet. Only continental masses matter at that resolution.
 
Enigma Maitreya
Enigma Maitreya
@Green Sorry was just messing with you, that is a huge undertaking and hats off to you :)
 
Green
Green
@EnigmaMaitreya Well, hats off to me when I actually finish it. :)
 
James
James
@Green wait...we're supposed to finish things?
 
Green
Green
@James I'm trying to kick my habit of not finishing. A house and hard drive half-filed with half-finished projects....if I finish it, then I can free up space.
 
Enigma Maitreya
Enigma Maitreya
2:17 PM
@Green When your all done and everything and if you have some gas left in the tank, I suspect the "Gulf Stream and the Greenland Pump" is known to a sufficient level that you stand a good chance of incorporating it. I could also point out the two "nina's" in the pacific could probably be put in just to add a "realistic" flavor.
 
Green
Green
@EnigmaMaitreya Much of my learning is based around using an existing tool that is fully capable of modeling the Greenland Pump as well as the deep haline currents. I don't have to learn that math of the simulations themselves, I need to learn the pre- and post- processing tasks to make sense of the data going in and out.
 
James
James
@Green You'll be back, to the lazy side...we were going to get cookies but the couch was so comfortable.
 
Bellerophon
Bellerophon
@EnigmaMaitreya I get 53 billion tonnes as a maximum weight of ocean life.
 
DaaaahWhoosh
DaaaahWhoosh
@Green I think my problem is figuring out which project to finish first. I have projects that would take less time, I have projects that would take more time but other people are waiting on, and I have projects that would take a lot of time and now I've thought of three different projects that are similar I should be working on at the same time
 
Enigma Maitreya
Enigma Maitreya
@Bellerophon Source please as the place I went had several oceanic life forms in excess of 1,000 Million tones.
 
DaaaahWhoosh
DaaaahWhoosh
2:22 PM
like, I could draw the third WB ad. It'd take maybe two days. Or I could make another glove prototype, which might take a week but people are waiting for it. But instead I'm redesigning my quilted pauldrons and designing a version for the legs too
 
Enigma Maitreya
Enigma Maitreya
Here en.wikipedia.org/wiki/Biomass_(ecology) look at the Dry and Wet values
 
Bellerophon
Bellerophon
en.m.wikipedia.org/wiki/Biomass_(ecology)# Ocean_biomass Says there is up to 10 billion C in the oceans.
 
Green
Green
@DaaaahWhoosh This Fictional Oceans project is easier to focus on because I'm working on it for someone else (Pedro) and I think I could make money on it if I push the idea a little bit further.
 
Enigma Maitreya
Enigma Maitreya
@Bellerophon Ok, we are looking at the same source find the table listing the environments look at the marine group and the weights.
 
DaaaahWhoosh
DaaaahWhoosh
@Green yeah, I think that's why I'm focusing on my current project. It's going to be something I can use and can make for the other people in my HEMA class, and it helps me build skills I need for a future project.
it's got the most value, but it's definitely not something I can get out of the way quickly
 
Bellerophon
Bellerophon
2:26 PM
@EnigmaMaitreya I don't see the problem. 1000 million tonnes = one billion tonnes.
Although my number is a little high as I used the highest possible numbers.
 
Enigma Maitreya
Enigma Maitreya
@Bellerophon Oh Ooops on my part I wrote it out and saw trillion, pressed the reset button and saw billion.
 
Bellerophon
Bellerophon
Don't worry about it.
 
AndyD273
AndyD273
@DaaaahWhoosh Interesting. My eldest told me yesterday that one of the kids in her class is bullying her. So far my response has been to contact the teacher and see if she knows anything. I have resisted telling her to just punch the girl in the nose. School year is almost over at least.
 
Enigma Maitreya
Enigma Maitreya
@Bellerophon Shrug I do because it is a constant battle to not be sloppy in one's thinking. Just chalk it up to self discipline.
 
Green
Green
@DaaaahWhoosh What's your project?
 
Enigma Maitreya
Enigma Maitreya
2:32 PM
@AndyD273 Does your daughter have a "war" face?
 
AndyD273
AndyD273
@EnigmaMaitreya I don't know... I think she is more of a "retreat" face
 
DaaaahWhoosh
DaaaahWhoosh
@Green like I said, quilted pauldrons. In my HEMA class, the place most people get bruises is on their upper arms/shoulders. Mostly because most people don't wear protective gear there. So I'm trying to make something that's light and non-restrictive to pad the upper arm so that we don't have to wear hot and expensive jackets through the summer
 
Green
Green
@DaaaahWhoosh My apologies, I missed your original mention of what you were working on. Sounds like a cool and useful project.
 
DaaaahWhoosh
DaaaahWhoosh
@Green to your credit, 'quilted pauldrons' probably doesn't make much sense out-of-context
but yeah, I think it's useful. I have a light jacket that I've already padded a bit, and someone saw what I'd done and requested the same for their old fencing jacket
 
AndyD273
AndyD273
@EnigmaMaitreya I have a war face. I rarely had to fight with my brothers. They just left the area when it looked like I was getting mad, because they said I looked crazy. I just don't know if I can teach her without laughing.
 
Enigma Maitreya
Enigma Maitreya
2:40 PM
@AndyD273 In the end, Bullies are insecure. If they were not then they are not bullying it would transition to intimidation / force. Regardless, I counseled the kids to remember that Brains are Greater than Brawn. Or in short, do not rely on force to solve your problems, out think the ones causing the problem. When all else fails, do what I did, I hit the guy and knocked him out. Waited for him to come to and helped him up.
 
Green
Green
@AndyD273 Maybe you could teach her Polynesian war faces? Stick out your tongue, bug out your eyes. Very disquieting.
 
Enigma Maitreya
Enigma Maitreya
@AndyD273 That is the what I was getting at. Most all predators evaluate the risk of injury vs the reward of confrontation. Most will only persist if the Risk is low.
 
Green
Green
@EnigmaMaitreya Hence why the young, sick and elderly are most common prey.
 
Enigma Maitreya
Enigma Maitreya
@Green Indeed, it is proof the "Beast" is just under the surface
 
Green
Green
@EnigmaMaitreya Here, and people think that humans are civilized. No, no, no. All the animalistic instincts are still there, just more complicated by a veneer of social rules.
 
Enigma Maitreya
Enigma Maitreya
2:47 PM
@Green Agree.
 
Green
Green
@DaaaahWhoosh Is this just cloth padding or a metal plate too?
 
DaaaahWhoosh
DaaaahWhoosh
@Green just cloth for now, I'm considering adding some rigid padding too but I think it's going to be hard to get right
look into the ochs guard, it makes armoring the upper arm difficult
 
Green
Green
@DaaaahWhoosh I can see what you mean. A rigid plate attached to your shoulder would make ochs really tiring to hold.
 
DaaaahWhoosh
DaaaahWhoosh
more than tiring, it might make it impossible
a series of small plates with some freedom of movement might work, but then it's becoming far too complex for me to finish any time soon
 
AndyD273
AndyD273
@EnigmaMaitreya yeah, if it got bad enough I was going to just tell her "put her on the ground, make sure she doesn't get back up again." But I think I have a brain solution that might work a lot better to try first.
 
Green
Green
2:54 PM
@DaaaahWhoosh Japanese style armor as opposed to European plate armor?
@AndyD273 End the fight quickly. The longer it goes on, the more likely someone is to get really hurt.
 
Secespitus
Secespitus
@AndyD273 She should be sure that it's self-defense from a legal point of view if the bully is supposed to "not get back up again" ;)
 
Enigma Maitreya
Enigma Maitreya
@AndyD273 In my opinion, avoidance is always the best solution. Leaving confrontation as the last choice.
@Green One thing I taught the kids when they were younger was to curl the fingers under to the first joint then strike the Voice Box with all they had. That will stop the aggressor. When they got older I showed them where the Solar Plexus is and basically the same move.
 
DaaaahWhoosh
DaaaahWhoosh
@Green even the European stuff gets complex around there, and either way rigid plates introduce more complexity than I'm comfortable with currently. Maybe once 2.0 is done and works, I'll consider a rigid 3.0
 
Nex Terren
Nex Terren
Morning, folks.
 
Green
Green
@NexTerren Nex! You're alive!
 
Enigma Maitreya
Enigma Maitreya
3:01 PM
@DaaaahWhoosh Are you trying to stay Historically accurate?
 
Nex Terren
Nex Terren
@Green I am! Only about 10%, but that still counts!
 
Green
Green
@NexTerren Did you get sick?
 
Nex Terren
Nex Terren
@Green Work.
 
Green
Green
@NexTerren Almost the same thing.
2
 
Enigma Maitreya
Enigma Maitreya
@NexTerren Is that like being alive sure does beat the alternative?
 
DaaaahWhoosh
DaaaahWhoosh
3:02 PM
@EnigmaMaitreya historical accuracy is a plus, but I'd like to think my main goal is protection, and mobility, and heat dissipation
 
AndyD273
AndyD273
@DaaaahWhoosh Historical accuracy is all fun and games until someone loses an arm
3
 
Enigma Maitreya
Enigma Maitreya
@DaaaahWhoosh Is your main concern the arms? (at the moment)
 
Nex Terren
Nex Terren
Tomorrow I have meetings starting at 8 and not stopping--not even for lunch--until 5 PM, including a two-and-a-half hour to yell at a vendor, and a 4 hour meeting to talk to internal audit.
I don't think my 10% will last.
 
DaaaahWhoosh
DaaaahWhoosh
@EnigmaMaitreya yeah, it's the part that I have the most bruises on. I have a separate project for hands, and I cannot make a fencing mask
 
Green
Green
@NexTerren Dang. My condolences to your sanity. May you find it eventually.
2
 
DaaaahWhoosh
DaaaahWhoosh
3:04 PM
@EnigmaMaitreya I have a secondary objective of protecting the clavicles, but we'll see how that goes
 
AndyD273
AndyD273
@DaaaahWhoosh You need some of that NASA chainmail
 
Nex Terren
Nex Terren
@Green Thank you. Your kind words will give me some degree of solace during these trying times.
 
DaaaahWhoosh
DaaaahWhoosh
@AndyD273 lol yes I actually would love to have some of that for this
 
Green
Green
@NexTerren Any idea how long you've got till things cool off?
 
Nex Terren
Nex Terren
@Green ...As soon as we can convince our CIO to drop this product? :D
 
Green
Green
3:06 PM
@NexTerren Good luck. Managers can be pretty dumb that way.
 
Enigma Maitreya
Enigma Maitreya
@DaaaahWhoosh Ok, you have bruises on your arm, are they placed such that you could provide extra padding there and avoid joints? I am assuming that any thing extra in a joint region or attached to a joint region will impact movement.
 
AndyD273
AndyD273
@DaaaahWhoosh Do you have access to a 3D printer? thingiverse.com/thing:2283808
 
Enigma Maitreya
Enigma Maitreya
@DaaaahWhoosh Such as a leather or chain that can be worn on the upper arm and lower arm section that would provide better protection.
IS there an easy way to get to the page that shows you all the rooms you have been invited to?
 
DaaaahWhoosh
DaaaahWhoosh
@EnigmaMaitreya jack chains are a historical armor, and I do want to make them some day, but for now a good 10-15 layers of cotton should be flexible and protective enough to do the job
 
Enigma Maitreya
Enigma Maitreya
@DaaaahWhoosh I should look, but I seem to remember an outfit that had curved metal plate that was between the shoulder and the elbow and between the elbow and the wrist. The pieces were not especially long, rather centered between the two adjacent joints.
 
DaaaahWhoosh
DaaaahWhoosh
3:14 PM
oh yeah, are you actually referring to jack chains?
 
Secespitus
Secespitus
@EnigmaMaitreya Click on "all rooms" in the upper right corner. Then click on the "invited" tab
 
Enigma Maitreya
Enigma Maitreya
@Secespitus @Secespitus thanks I will investigate that
@DaaaahWhoosh @DaaaahWhoosh I looked at the pictures and no, that is not what I saw, just a wider plate that did not attempt to cover the entire upper or lower section. One could easily implement this with a pouch time thing on the arm were the plate could be inserted, it was curved vs flat. I am probably going to need to go find a picture of it if I can not describe it sufficiently to allow you to visualize it.
 
DaaaahWhoosh
DaaaahWhoosh
yeah, I'm not following you at all
 
Enigma Maitreya
Enigma Maitreya
@Secespitus Ok, from a given room, I do that and see the Invited tab but it is greyed out and not selectable. Yet when there is a message at the top of a screen, saying X has invited you to "Time and Relative Dimensions" it has a link to all rooms you have been invited to, clicking it gives a page with 3 rooms that I had no idea I had been invited to listed.
 
Bellerophon
Bellerophon
@EnigmaMaitreya You get auto-invited to rooms if your messages get moved there.
 
Enigma Maitreya
Enigma Maitreya
3:26 PM
@Bellerophon Nah these rooms are "Contact" where you defend a Word and happens weekly I have never been to or knew anything about that room as an example. Weekly Writing Exercise, Code Jam (which I might actually join) are the other two rooms
 
Secespitus
Secespitus
@EnigmaMaitreya Those are Events
There is an "event" tab that you can click next to the "invited" tab
 
Enigma Maitreya
Enigma Maitreya
@Secespitus Oh well now I go back and the Invited Tab is enabled so thanks, problem solved etc.
@Secespitus Ok, that was were I was going in my thinking so thanks for the confirmation.
:) I might drop by the Defend a Word thing though that sounds kind of fun.
 
DaaaahWhoosh
DaaaahWhoosh
3:42 PM
I cannot say this enough, APNS is the funniest initialism I have to use in work
but I think I'm the only one who is bothered by it. I always make sure to say A.P.N.S. as slowly as possible, but then everyone else is like 'we need to figure out how to integrate with a penis'
 
Enigma Maitreya
Enigma Maitreya
@DaaaahWhoosh This is a link to the concept but is far more extensive than I think is required. swordnarmory.com/…
 
DaaaahWhoosh
DaaaahWhoosh
@EnigmaMaitreya oh, right, I see what you mean. But yeah, I do actually want to protect the shoulder joint too
plus, I do wear rigid forearm/elbow guards already. They're cheap and readily available
when you fall off a motorcycle, it seems like you're not expected to be attacked by a man with a four-foot-long blunt object. But you are expected to brace yourself with your forearms
2
 
AndyD273
AndyD273
4:06 PM
@JDługosz Hey, so I was thinking about the railgun question, and your comment that momentum can't be redirected, and I'm pretty sure that is wrong. If you play pool (billiards) you can use the cue to push a ball down the table, hit a second ball, and the first ball loses most of it's momentum while the second ball moves off in a completely different direction. Momentum is preserved, it's just transferred to something going in a different direction.
 
DaaaahWhoosh
DaaaahWhoosh
I learned about muzzle brakes recently. They apparently push the recoil to both sides of the gun, which then cancels out. Which is great, unless you're standing to the side of such a gun
 
sphennings
sphennings
@DaaaahWhoosh They reduce felt recoil not not cancel it out. They also have the side effect of making the gun much louder.
 
DaaaahWhoosh
DaaaahWhoosh
right, what I meant was that it generates force to both sides, so the side forces cancel out. The normal recoil force does not cancel out, but is lessened
 
sphennings
sphennings
There's also the muzzle booster that increases the recoil, normally as part of the action of an automatic firearm.
 
AndyD273
AndyD273
My answer had to do with the construction of the Kriss Vector rifle specifically, which uses a mechanism to redirect momentum of the bolt going back from the shooter into a downward vector
Well, down, then back up
 
Serban Tanasa
Serban Tanasa
4:39 PM
anything of fire?
or anything on fire for that matter?
 
DaaaahWhoosh
DaaaahWhoosh
I, for one, am a rooster of water.
 
Serban Tanasa
Serban Tanasa
I tried my hand at being a roaster of water, did not work out too well
 
DaaaahWhoosh
DaaaahWhoosh
there's got to be a pun response to that
 
Nex Terren
Nex Terren
@DaaaahWhoosh I'm not sure it'd be PG-13, though.
 
DaaaahWhoosh
DaaaahWhoosh
roaster? I hardly even know her?
 
Nex Terren
Nex Terren
4:45 PM
Oh, shoot. I read the second comment as still "Rooster of water."
And you can actually set water on fire. I'm... not sure what successfully roasting water would constitute, though.
 
DaaaahWhoosh
DaaaahWhoosh
I tried to make boiled water once. It ended up steamed.
I'm convinced there's a good joke around here somewhere, but I'm never going to find it
 
dot_Sp0T
dot_Sp0T
@DaaaahWhoosh slow clap
 
Enigma Maitreya
Enigma Maitreya
@DaaaahWhoosh Actualy on this note, there is a substance called Aerogel en.wikipedia.org/wiki/Aerogel - I suspect a pocket or sleeve on your upper and lower arm that you could insert this into I am thinking about 1 inch thick, would probably give a lot of support and very little in the way of weight.
 
sphennings
sphennings
@EnigmaMaitreya Aerogel is incredibly brittle. It would crumble to dust after the first hit.
 
Enigma Maitreya
Enigma Maitreya
@sphennings Ah so that is the direction it is flawed in
@sphennings That almost makes me wonder about Styrofoam pellets.
 
sphennings
sphennings
4:56 PM
Make some armor out of it and ask someone to hit it with a bat.
 
Enigma Maitreya
Enigma Maitreya
@sphennings Styrofoam Pellets?
 
sphennings
sphennings
I don't think it will stand up to multiple hits.
 
DaaaahWhoosh
DaaaahWhoosh
I'm just going with layers of cotton. Should be similar enough to linen, which has historical precedent
 
Enigma Maitreya
Enigma Maitreya
@DaaaahWhoosh That would be good enough. @sphennings is bringing up an interesting counter though and I wonder now what memory foam would bring to the table.
 
sphennings
sphennings
It would be too bulky
 
DaaaahWhoosh
DaaaahWhoosh
4:59 PM
@EnigmaMaitreya I have actually done some experiments with it. It was all right, but not at the thicknesses I was considering
I want something that will fit under a jacket, not over it
 
Enigma Maitreya
Enigma Maitreya
Ok, end the end, Cotton / Silk may be the best answer
 
DaaaahWhoosh
DaaaahWhoosh
if I had more money I would definitely do some cutting tests with silk. It sounds magical
maybe not good for blunt impacts, but if it can stop a broken sword then it might be worth using
 
Enigma Maitreya
Enigma Maitreya
Instead of cotton balls have you considered the cotton pads used to remove makeup?
 
DaaaahWhoosh
DaaaahWhoosh
oh, I was just going to use cotton cloth
or, what is known as 'batting'
the funny thing about quilted armor is that it has a lot in common with actual quilts
 
Enigma Maitreya
Enigma Maitreya
 
sphennings
sphennings
5:03 PM
@EnigmaMaitreya That seems like a pain to sew.
 
Enigma Maitreya
Enigma Maitreya
@sphennings May be, just throwing crap at the wall seeing what sticks
 
sphennings
sphennings
@DaaaahWhoosh This sounds like a cool project. It would be neat if you could show us the finished product.
 
DaaaahWhoosh
DaaaahWhoosh
yeah, hopefully I can get 2.0 finished/started this Saturday. But I might already have an image of version 1.0
 
Enigma Maitreya
Enigma Maitreya
@DaaaahWhoosh I think I see what your doing.
@DaaaahWhoosh How long/wide is that segment?
 
DaaaahWhoosh
DaaaahWhoosh
the four 'rows' are a total height of about 14 centimeters
I don't know the length, but it's basically from the elbow to the neck
 
Enigma Maitreya
Enigma Maitreya
5:11 PM
@DaaaahWhoosh Isnt that restrictive movement wise?
 
DaaaahWhoosh
DaaaahWhoosh
@EnigmaMaitreya it bunches up on the joint, which is something I'm trying to fix, but otherwise no
for the most part, it's free-floating, which helps
 
Enigma Maitreya
Enigma Maitreya
@DaaaahWhoosh I was thinking maybe make two pieces and join them with some thing for the flexibility, such as elastic or something.
 
DaaaahWhoosh
DaaaahWhoosh
@EnigmaMaitreya oh yeah, that might work. I'll definitely put that on the list of 3.0 enhancements
 
Enigma Maitreya
Enigma Maitreya
@DaaaahWhoosh You could connect the upper arm to the lower arm as well
 
DaaaahWhoosh
DaaaahWhoosh
I'm not worried about the lower arm, there's plenty of affordable options for that part
 
Enigma Maitreya
Enigma Maitreya
5:16 PM
Ok, there is the debate of agility vs armor. I have always tended towards the agility (fast and maneuverable vs slow and tough)
@DaaaahWhoosh By the way, do you watch "Into the Badlands"?
 
Mithrandir24601
Mithrandir24601
@EnigmaMaitreya I'm right in the middle of watching it now :)
 
Nex Terren
Nex Terren
@EnigmaMaitreya So I've only bein trailing 10% of this conversation, but the debate of agility vs armor breaks down to the ability (resources and technology) to create weapons vs armor, doesn't it?
Depending on the era and the region, the answer of "how much armor to wear" varies.
 
Enigma Maitreya
Enigma Maitreya
@NexTerren Yes offense vs defense is the bigger group
 
Mithrandir24601
Mithrandir24601
@EnigmaMaitreya And even a small bit of armour (say layered clothing) is an awful lot better than nothing
 
Enigma Maitreya
Enigma Maitreya
@Mithrandir24601 Absolutely and if that tends to stop bleeding then all the better.
 
Nex Terren
Nex Terren
5:19 PM
And mail (even today, in certain situations) does a fantastic job of protecting for not that much weight. It just requires a certain level of metalwork understanding and manual labor.
 
Enigma Maitreya
Enigma Maitreya
@NexTerren Offense vs Defense is what the modern Arms vs Shield manufactures are getting rich on.
 
Nex Terren
Nex Terren
Toss some sort of padding under that and you're pretty good against slicing and bludgeoning.
 
sphennings
sphennings
@EnigmaMaitreya Arms vs Shield?
 
Mithrandir24601
Mithrandir24601
@EnigmaMaitreya I'm told that my Kung Fu instructor's master was in some of season 2 :)
 
Enigma Maitreya
Enigma Maitreya
@NexTerren for @DaaaahWhoosh I was thinking a light metal that distributes the impact over the entire area backed with a "cushion" material.
@sphennings A metaphor. Stealth Technology unbalanced the game a lot by obsoleting Radar(Shield).
 
Nex Terren
Nex Terren
5:22 PM
@EnigmaMaitreya So a classic plate/gambeson configuration, just with superior materials?
 
Enigma Maitreya
Enigma Maitreya
@Mithrandir24601 Well for a series, they have some darn good fight sequences and I am a "Widow/Flea" fan .... go GIRL
@NexTerren Yes
 
Nex Terren
Nex Terren
Plate/gambeson is actually pretty effective except the joints (which in reality are fairly hard to attack in real combat) for the era.
 
Enigma Maitreya
Enigma Maitreya
@NexTerren That is why I would prefer segments as the loss of agility does not warrant the protection in my opinion.
 
sphennings
sphennings
@EnigmaMaitreya I'm not getting the metaphor care to explain?
 
DaaaahWhoosh
DaaaahWhoosh
@EnigmaMaitreya I'm just concerned about segments because they're more complex, so more likely to get stuck in a fight
 
Enigma Maitreya
Enigma Maitreya
5:25 PM
@sphennings As a super grouping, All things alive are engaged in an Arms vs Shield scenario. Toads develop poison to shield them from predators. Predators become immune to the poison, the toad develops new poison. The predator becomes immune .... repeat
 
DaaaahWhoosh
DaaaahWhoosh
like, there's a strap that goes over hockey/lacrosse gloves to defend the wrist, and every so often a sword will slip right under it and get stuck
or not get stuck, and tear the strap off
 
Nex Terren
Nex Terren
Just to clarify, what era are we dealing with?
 
DaaaahWhoosh
DaaaahWhoosh
early 21st century
 
Enigma Maitreya
Enigma Maitreya
@DaaaahWhoosh yes that is the risk but one can learn to mitigate that risk to a lower level with body posture and movement
 
Nex Terren
Nex Terren
Okay, so more or less now. And what threats are we trying to defend against?
 
Enigma Maitreya
Enigma Maitreya
5:28 PM
@NexTerren I get the context either a fencer or a swordsman
 
DaaaahWhoosh
DaaaahWhoosh
@NexTerren people with four-foot long plastic/steel sticks
 
Nex Terren
Nex Terren
Huh. Okay.
 
DaaaahWhoosh
DaaaahWhoosh
though it's possible we're talking in a more general sense now, I'm not sure
 
Enigma Maitreya
Enigma Maitreya
@DaaaahWhoosh Oh, ok
 
DaaaahWhoosh
DaaaahWhoosh
@NexTerren I was initially talking about how I'm making protective gear for my HEMA class
 
Nex Terren
Nex Terren
5:30 PM
So I wouldn't worry at all about slashing or piercing, just bludgeoning. I'd skip plates.
 
DaaaahWhoosh
DaaaahWhoosh
plates can still work, they just seem to be more trouble than they're worth (except in gloves)
(gloves are super hard to design because they need to be flexible, rigid, and also not impart any external force into your hand)
 
Nex Terren
Nex Terren
I mean they can still work, right, but they're overkill. When plates became the defacto standard in Europe for the elite/rich, people started equipping soldiers with bludgeoning weapons and just ignored the plates. Bludgeoning is the traditional way around plates, and since you're only dealing with bludgeoning damage...
 
Enigma Maitreya
Enigma Maitreya
@NexTerren Also the bludgeoning weapon was mostly more massive making it slower and more unwieldy
 
Nex Terren
Nex Terren
I dunno. Plates can distribute blows across the padding, but I really wouldn't put too much effort into them.
 
DaaaahWhoosh
DaaaahWhoosh
@NexTerren yep, that's my thought too. I'm sticking with layers of cotton for now, it works against blunt swords and that's all it needs to work against
against actual bludgeoning weapons, it'd be a different story
a blunt axe is still going to ruin your day, because all the weight is in the part that's hitting you
 
Mithrandir24601
Mithrandir24601
5:35 PM
@DaaaahWhoosh Have you ever heard of ProGauntlet? They're not released yet, but the makers claim that they're incredible (and they've spent a lot of time and effort making them and the video they've released certainly makes it seem very good)
 
Enigma Maitreya
Enigma Maitreya
@DaaaahWhoosh I should star that
 
DaaaahWhoosh
DaaaahWhoosh
@Mithrandir24601 I've heard so much about ProGauntlet that I've stopped believing in them
at this point, they're like Solar Freakin Roadways
 
Nex Terren
Nex Terren
And all padding is, is the attempt to distribute the energy of the blow *somehow.* It distributes it for the spread (that the material causes) but more importantly it distributes the force applied to your body over time. If padding can double the time the force is applied, it halves the magnitude.

Good padding just increases that force distribution over time, or transfers it to mechanical work. That's literally the entire design behind bicycle helmets; they're designed to be crushed under a single impact, and distribute the impact to your skull over time, as well as distribute the impact i…
 
Mithrandir24601
Mithrandir24601
@DaaaahWhoosh I believe they'll get there, but in a good number of years
 
AndyD273
AndyD273
@DaaaahWhoosh Just doing a little reading on the subject, saw a couple suggestions for welding arm guards with rigid inserts. You can get them without the inserts, you just wouldn't want to, and they are supposed to be pretty light
 
DaaaahWhoosh
DaaaahWhoosh
5:38 PM
@Mithrandir24601 if they do, I'll buy them. But very few things live up to the hype these days.
they at least get the idea that you have to distribute the force into the sword, rather than into the hands. That's the hardest part of designing good gloves, as far as I can tell
 
AndyD273
AndyD273
5:53 PM
So I've been thinking about health stuff, and decided that I should give up sugar for a little bit, like a week, just to get things balanced. I thought to myself "this shouldn't be too hard. It's not like you're addicted after all..."
Apparently I am.
2
 
JDługosz
JDługosz
@DaaaahWhoosh congrats on the populist badge! Those are particularly interesting.
 
sphennings
sphennings
@AndyD273 If you start by trying to just avoid refined sugars you may be more successful.
 
DaaaahWhoosh
DaaaahWhoosh
@AndyD273 I like to think about cutting down on sugar, because that's when I get to talk to my animal-brain. He makes terrible arguments, but convinces me every time.
 
AndyD273
AndyD273
@sphennings That's pretty much what I'm doing. Cut out the refined sugar as much as possible, minimal flour... the shakes are making typing hard.
It's also weird how any candy in the office lights up like a beacon. Maybe I need to replace it with something else... Like bacon.
 
DaaaahWhoosh
DaaaahWhoosh
@JDługosz yeah, I liked my answer to that question, but I never knew it was good enough to get upvotes in spite of the wall of text that is the accepted answer
 
JDługosz
JDługosz
6:02 PM
@EnigmaMaitreya I had bully problems in middle and bigh school. Teachers had no clue how to do anything. I think it might be better today with acts easily caught on camera.
@EnigmaMaitreya the bullies are much better, and practiced, at physical altercation. He’ll easily evade and respond in kind, and guess who gets in trouble for “starting it”?
 
Enigma Maitreya
Enigma Maitreya
@JDługosz That is the problem though, any adult or authority involvement tends to just make it worse. IF the bully smells blood then they stalk you until your not protected. There is the physical bullying and there is the cyber bullying. The cyber bullying is a real problem and the community it occurs in can stop it.
 
James
James
@JDługosz populist may be my favorite gold badge...
 
JDługosz
JDługosz
@AndyD273 you’re either seeing the results of friction or someone is cheating. Billiard balls colloding will send both balls in different directions so the vector sum of momentum is concerved. If the first ball is stopped, the second takes over in the same direction.
 
Enigma Maitreya
Enigma Maitreya
@JDługosz Yeah, that may tend to be more true than false, but one thing about a Bully is they tend to expect compliance. If one acts outside the Bullies expectations, then one tends to put them into an insecure mode, maybe temporarily but that is all it takes, just a moment. As to getting the blame, yes that is the risk, but Bullies tend to be know by repeat pattern.
 
JDługosz
JDługosz
See scienceworld.wolfram.com/physics/ConservationofMomentum.html for example. You cannot “redirect” momentum.
@DaaaahWhoosh pnumatic bladders that vent slowly, then self-refill. You can grab the mechanism from several common toys to prototype it.
@EnigmaMaitreya back in the day, there was only verbal abuse, physical attacks, and vandalism. No cyber-anything. You’re referring to the same stuff but on social media, right? Not, like, hacking the school library to show the victum has a thousand dollar fine past due.
 
AndyD273
AndyD273
6:25 PM
@JDługosz I didn't say stopped, just slowed. If A hits B, B shoots off in one direction, and A shoots off in another, but is going the same speed it was before, it would be perpetual motion.
 
Enigma Maitreya
Enigma Maitreya
@JDługosz Correct social media.
 
DaaaahWhoosh
DaaaahWhoosh
@JDługosz I don't really like the idea of armor that squeaks when you hit it
@NexTerren I don't know how right my answer to your armor question is, but I really hope it's exactly correct
 
JDługosz
JDługosz
@AndyD273 a collision as with two billiard balls has a unique solution that conserves both momentum and kenetic energy. You can find the Pythagorean theorum hidden in there!
 
AndyD273
AndyD273
Oh, and friction is of course going to be a thing. Unlike physicists, we don't have spherical cows living on a friction-less plain.
 
JDługosz
JDługosz
@DaaaahWhoosh the rest of us do.
 
AndyD273
AndyD273
6:30 PM
Actually, if momentum couldn't be redirected, driving home would be a scary task
 
JDługosz
JDługosz
My favorite Populist badge, currently at 47 vs 109
 
AndyD273
AndyD273
@JDługosz That was a pretty good one
 
JDługosz
JDługosz
@AndyD273 being able to react against the earth is not the same as “redirecting” without conservation.
 
AndyD273
AndyD273
6:48 PM
@JDługosz I never implied anywhere that there would be redirecting without conservation though.
 
DaaaahWhoosh
DaaaahWhoosh
ooh, and the barrel is in line with the hand
 
AndyD273
AndyD273
That's the mechanism in action (slowed down of course)
 
Enigma Maitreya
Enigma Maitreya
@AndyD273 Hum, looking at that, it makes me wonder if that mechanical action could create energy that could power a noise wave that would effectively cancel the noise wave being caused by the firing. Seems like there should be enough.
 
Nex Terren
Nex Terren
@DaaaahWhoosh Hey, it sounds smart to me. Thanks for the help!
 
DaaaahWhoosh
DaaaahWhoosh
@NexTerren sure, and thanks for giving me the mental picture of a knight riding into battle against a tank
 
AndyD273
AndyD273
7:00 PM
@EnigmaMaitreya from watching a review of the gun in action, it kind of works that way. The bullet shooting out wants to move the gun up, while the mechanism hitting bottom wants to move the gun down. When the spring pushes it back up, it throws it back into line, so that spread is minimal. At least that's how I understood the explanation.
 
DaaaahWhoosh
DaaaahWhoosh
supposedly a cavalryman was able to kill a tank once in WW1. Rode up to it, stabbed through the front window, killed the driver
 
AndyD273
AndyD273
@DaaaahWhoosh Technically, he didn't kill the tank, unless the dead driver then drove it off a cliff...
 
Nex Terren
Nex Terren
@AndyD273 Technically, as it was never alive, the tank couldn't die. :P
 
AndyD273
AndyD273
@NexTerren Ohhh, you are technically correct. That is the best kind of correct.
 
JDługosz
JDługosz
@AndyD273 you imply that moving something down can somehow take over the momentum of moving back. When the slide stops moving back (in order to move down) it must have transferred the momentum to the frame — i.e. recoil. The momentum cannot disappear or have its vector rotated. It can only be shifted into other objects.
 
DaaaahWhoosh
DaaaahWhoosh
7:04 PM
oh, I just found out the thing I thought happened would've happened in WWII, but was a myth
 
AndyD273
AndyD273
@JDługosz It is entirely possible that I used the wrong word to describe what was going on in a mechanism that does in fact work.
 
JDługosz
JDługosz
@AndyD273 I think that’s the right idea: this is a compensation for torque, not linear momentum. The projectile leave the gun at the top with most of the gun’s mass below, so it rotates the gun counterclockwise. This twists it out of the user’s hand.
 
AndyD273
AndyD273
Is "Transfer" a better word than "Redirect"? I try not to disturb the pedants if I can help it.
@JDługosz I don't think that's what it's doing either though. The problem isn't the gun wanting to move sideways, otherwise the mechanism would be mounted out the side, not down.
That's why the old school Tommy gun had a piece fitted on the end of the barrel that would send some of the muzzle exhaust up and to the side, otherwise that gun wanted to move up and sideways.
Muzzle break is the word I'm thinking of
Early versions of the Thompson submachine gun were very hard to control because of how it was designed. The shooter would have to be constantly fighting to keep it from spraying the ceiling. So they put a muzzle break on it that pushed the barrel down and slightly to the side to counter that. Made it a lot easier to handle.
 
JDługosz
JDługosz
7:23 PM
That is worth noting in an answer though: part of what makes the gun hard to handle is the balance, not the total momentum.
 
AndyD273
AndyD273
@JDługosz Sure. Something that pushes straight back is going to be a little easier to handle than something that is throwing itself every which way. I wonder... if you had something that was being thrown forward with the same force that was being pushed backward, would that minimize the recoil?
Like, the round is driving the bolt backward. If you used hydraulics (or something?) to take the backward energy and turn it 180 degrees to compress a spring or an air chamber for instance, would the forward force be able to mostly cancel the backward force?
 
DaaaahWhoosh
DaaaahWhoosh
@AndyD273 would that only work for one shot?
like, you can store the recoil, but you have to let it out eventually
 
AndyD273
AndyD273
@DaaaahWhoosh Not if the spring or air pocket then pushed the hydraulic back, which would return the bolt to it's original possition
 
DaaaahWhoosh
DaaaahWhoosh
but then you would feel that
right?
 
AndyD273
AndyD273
@DaaaahWhoosh but it would be another forward action, not backward, and I know that you can't cancel it completely
There will be bleed in the system
I wonder if @Green has the know how to model this....
 
DaaaahWhoosh
DaaaahWhoosh
7:37 PM
yeah, I mean at the end of the day you've still got bullets coming out one end. That has to amount to an equal and opposite force
 
sphennings
sphennings
@DaaaahWhoosh But you can have that force act on a larger mass over a larger period of time.
 
DaaaahWhoosh
DaaaahWhoosh
yeah, that is true. All I'm saying is that nothing can 'eat' the recoil
unless it gets rid of it later
I wonder if you could convert the recoil to heat
hmm, I guess guns already do that, and that's a problem
 
sphennings
sphennings
You could have a "crumple zone" inside the gun. Convert the recoil into mechanical deformation.
 
AndyD273
AndyD273
@sphennings Thats called a spring
 
sphennings
sphennings
@AndyD273 Only if it bounces back afterwards.
 
AndyD273
AndyD273
7:44 PM
True
 
DaaaahWhoosh
DaaaahWhoosh
you could have like a double magazine, with the round and a breakable rod in parallel
 
AndyD273
AndyD273
But you need that stored energy to push the next bullet into the chamber, most of the time
 
DaaaahWhoosh
DaaaahWhoosh
@AndyD273 but even that doesn't use all of the recoil
 
AndyD273
AndyD273
Oh! just design a gun that shoots two bullets at once in opposite directions.
 
DaaaahWhoosh
DaaaahWhoosh
@AndyD273 sounds to me like a double-edged sword
 
sphennings
sphennings
7:47 PM
The AT-4-CS launched a mass of saltwater backwards as a way of reducing backblast.
 
AndyD273
AndyD273
I'm making all these numbers up: say the bullet leaving the chamber carries 10 force. 2 force are exerted on the barrel itself, not the bolt, so that force goes through the gun into the shooter. Then the bolt pushes back on the hydraulic, and 1 force bleeds from the system through the gun into the shooter. The hydraulic compresses a spring for 6 force.
The 5 forces remaining are forward forces then cancel most of the remaining backward force, so instead of 10 forces being passed through the gun into the shooter, you only get 3. The spring pushes back, and drives the bolt back forward, for a…
 
sphennings
sphennings
When the spring decompresses it's going to exert an equal force in both directions.
 
DaaaahWhoosh
DaaaahWhoosh
@sphennings won't it just be in the opposite direction of the force that compressed it in the first place?
or... in the same direction
 
sphennings
sphennings
A spring always exerts equal force on both ends.
The rigor of my ability to talk about physics is lacking so I'm sorry if I'm not making myself perfectly clear.
 
Green
Green
@AndyD273 model the action in a rifle?
 
DaaaahWhoosh
DaaaahWhoosh
7:56 PM
@sphennings eh, you're doing better than I am
wait, actually, when you push on a spring, won't some of your pushing go through the spring to whatever's behind it?
or I guess that's what the compression does. Huh, this is weird to think about
but, I guess, does that mean that at maximum, you can only redirect half of the force of something with a spring? The rest will always go straight through, albeit more slowly?
 
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