@ScientistSmithYT You need to give the secondary a load it can transfer energy to. If it's shorted, output voltage goes to 0 and no energy is transferred. If it's open, output current goes to 0 and no energy is transferred. The ideal case is somewhere in between.
@ThePhoton Ok I'll take a look at that. I believe I know what he's doing by putting it on the primary side. See ya.
@ThePhoton Yup I know what hes doing. He's doing the same thing as mine does its just on a different side and flipped the other way. He put it in the primary side so he has to use the HV ends. I used the HV ends on the secondary exploiting the same thing and then shorted or loaded the primary side. Just as he did. He just went a step further and smothened the output HV end a little bit. Via the lamp absorbing the pulses.
It get a little more complicated in the magnetics realm of things later, but its pretty simple.
I've also seen this post a long while ago. He's a very genuine and trusted source. I would recommend him.
@JRE Ive got the best and ultimate HV project. Probably the lowest power with the highest voltage ive ever experimented with. I think its time for 320 kV!!!
@JRE I need 2 XRT's! submerge it in a very thick and dense oil. (I'll have to figure out the oil ratio later) Then connect them in series. 320 kV times 2 is 640 kV!!! At 60 mA!!! I'm in love. Maybe see what's possible and add another two making 1,280,000 volts!!! With 120 mA.
@JRE Wow that is amazing. Only if I can find a way to connect that to the amazing Cockroft-Walton multiplier. I could get up to 12,800,000 volts! Now that's somewhat comparable to lightning testing facilities.
Does anyone know any good source of information regarding heatsink shape/geometry and how it affects air flow (I am thinking about both passive heat sinks and the forced convection ones).
Interesting, but I'm looking for something that is less concerned with maths
And would help me visualise how air flows for different heat sink shapes. I'm thinking about the difference between the horizontal, curved fins type (for forced convection) and the standard vertical fins passive heay sink.
Just went over to a friends place to make some solid helium at a temperature of -462.7 Fahrenheit. It was so cold in the vacumme chamber I could feel the air around the chamber was extremely cold. Then when we released the air back into the chamber the pressure difference was so great that well the solid helium was no longer there.
Its technically the coldest temperature we can make on earth. Space though has colder temperatures in certain areas. But it was still an amazing experience.
@ScientistSmithYT That's one more hell of a cooling rig your friend has. Absolute 0 is −459.67 °F Y'all got colder than coldest possible, by nearly three degrees F.
Follow the link. Nothing can get colder than absolute 0 degrees kelvin. That's -459.67 F. You said you got -462.7. That's colder than coldest possible.
Its titled as a vacumme chamber but it can do both pressure and vacumme.
And no, the temperature gauges we had used were the built in ones. We also used other scientific gauges to find if there was a consistency. We found in our report that it was consist within a +- 1.5 degree error room.
My friend is the one who knows a lot more about his system and chamber than I do. I'll tell ya though that his chamber wasn't even close to cheap. It was definitely more than a house. I.E more than $250,000.
So knowing that the temperatures we measured are correct and the measurements were also correct. Does that mean we made a breakthrough? I'm confused... We did try to shoot for the coldest temperature that we could get. At least with the chamber he has.
No. It means the temperature you measured wasn't correct. If you think you have a major breakthrough on your hands, you start by suspecting your equipment and your use of it.
A temperature lower than absolute zero would break physics as we know it. So, you really need to find out why your measurement is wrong. Eliminate all possible sources of error, confirm the calibration. If you still have a lower temperature than absolute zero, ask somebody who knows more than yourself (or your friend) about such things and see what you may have missed.
Labs that do cryogenics have cooling systems that cost millions or tens of millions. They don't get below absolute zero.
Absolute zero is not some arbitrary point defined by some yoyo who said "I declare -459.67 F to be the coldest possible." It is determined by nature itself. The numbers we use to represent it are kind of arbitrary.
Celsius is defined from the freezing point of water. That's 273.15 degree kelvin. Kelvin degrees are exactly the same "size" as celsius degrees, but it kelvin starts at absolute zero.
Ok, we will call in multiple other professionals to get this sorted out, then we will do the experiment again. We estimate that we can do our experiment again in a month or so from now.
When you do call in experts, tell them you have some odd measurements at very low temperatures and need some help finding possible experiment and equipment errors. If you tell them you think you have a breakthrough temperature lower than absolute zero, they may not laugh but they'll certainly think you are a crank.
I know jack about 18650 charging. Except: Do it carefully, and use smart circuits designed for it rather than something cobbled together out of bits and pieces found laying around the workroom floor.
Oh... Ok... Then I guess this wouldn't be a good question to ask then.
Fun Fact: Most lithium batteries actually don't have lithium metal inside them. The lithium metal is very well known for the red color it makes when it is submerged in water. Water and lithium don't mix very well without catching on fire.
It is a fun little thing to show your kids or friends though. Just wear some grease gloves and drop it into the water. In 1.8 almost 2 seconds it'll catch fire in an amazing spectacle.
That's actually a part of my surprise project for my neighbors for the next 4th of July. Mixing that with some other metals like copper, boron, and lanthium. And maybe a little bit of altered chemistry in the TNT.
@JRE I do like that you actually admit that you don't know about stuff when you actually don't know about it. It shows great (I wanna say respect, but time for a different word) it shows great pride. It shows you're trustworthy. Most people if they dont know stuff when asked just don't respond. Which isn't good.
Being in the life of me is not really comparable to much. I'm currently working on 7 very large and quite very dangerous projects. And I've learned the ability to be able to switch everything over to certain parts of my brain. So I can focus everything on what is needed. And I guess that's also what getting my Eagle taught me as well.
@JRE One thing I think you may know a little about is Cockroft-Walton multipliers. As far as I know they can only go up to 10 stages at maximum. And only accept AC. Am I correct?
They only take AC as input. And they make DC as output. The number of stages is limited by how much "droop" in the output you are willing to accept. 10 stages is about the most I've ever heard of.
@JRE Ok. But have you heard of 50 ft arcs from a small device? That's my large project that is coming up. And I actually don't have very much wiggle room for something like this. Yes you read that right 50 ft arcs, meaning 40,500,000 volt arcs.
And actually that's perfect! Exactly what I need. My device will output AC. I'll just have to find the amount of capacitors and diodes I'll need. I already know it'll be a lot. But I have a lot of room.
Once I create this thing. You might be able to look me up on YouTube because I am planning on being on the YouTube channel called "Plasma Channel".
My next project might give him what he needs to get closer to his mission. "Make lightning". At least this will get him closer to the 1,283,040,000 volts of the longest recorded lightning strike. Yes that's 300 miles.
My Brain: Now of only I can take the 40,500,000 volts and put it into capacitors then discharge all of them via a short. Now that'll be louder than a sonic boom 20 times over.
