oh crap, the self-test apparently drains 15% from the batteries
hope it charges back to full before I lose power ;p
if I lose power, I want to use my UPS as a USB charger for my phone... I can at least stay connected to the civilized world for many many hours (days) with the juice in my UPS plus my 2 Ah Anker battery plus whatever my laptop can put out
@DavidPostill There are two parts to the threat of this storm: the snow, and the wind. Right now the snow intensity is about half of what it'll be at the storm's peak, and the wind is only at about 10% the intensity of the biggest gusts we are expecting
@Bob my monitor + USB hubs + computer are drawing 225W from it right now, so yeah
@qasdfdsaq might be a better use of its energy to hook up a powered USB hub and charge all our mobile devices at once, then... not only my phone, but every member of the household's mobile devices
@qasdfdsaq snow storms in general are very common in the winter, but I've only been through two other storms of comparable severity in 30 years of living here
@allquixotic I see. Was wondering cause I've seen documentaries of people in parts of the U.S. with large diesel generators in areas where power cuts are frequent
we've gotten 16 inches of snow with an ordinary snow storm as recently as last year, and we never doubted that our power would be fine because the wind "gusts" topped out at 15-20 mph
@allquixotic Decent power infrastructure? shock horror
When I lived in central Edinburgh the only times I had a power cut in 10 years was due to ... human failures, and I had zero interruptions due to weather
Once the substation caught fire, another someone dug through a cable and blew some fuses.
if you were to trace the power line from my house to the power plant, it'd go something like this: buried underground for ~0.5 km; hanging on fairly old (1982-ish era) telephone poles for several miles; several "cross-connections" between different telephone pole junctions out around the 1-3 mile area; and then those enormous very heavy and tall steel towers that lead to distribution centers and the power plants
coal-fired power plant ~10 mi away; large baseload nuclear station ~30? mi away
one thing the UPS will definitely help me with is the momentary outages when power has to be shunted around due to a failure somewhere else in the grid
when I'm using my PC during even a moderate storm, very often we get these outages that are enough to trip my computer's PSU, but you barely see the lights flicker
it's just power being rerouted around an outage or something
the UPS will isolate my computer against that making me lose my state
If it didn't self-test, it'd be fine. But it self-tests on power on and complains the batteries are bad. When they're really ... 90% OK
Apparently lead acid prefers being fully charged during storage but that's all I know
My self-test on my UPS doesn't do much of a cycle anyway, it lasts maybe 5-10 seconds
A 10 second test once a week can't possibly make much difference either way
@allquixotic That's kinda interesting. With a few hundred milliseconds I'd expect lights to flicker. At least "analogue" lights
ATX power supplies are supposed to have at minimum 16ms holdup at maximum load, some good ones do more, but the vast majority don't meet the minimum spec.
Mine exceeds it by about 20%, so that's 20ms or so... At 10% load I'd expect at least 100ms.
I'm not sure what switching time line-interactive UPSs have but I recall reading it wasn't actually that good
What is the average time for a UPS to switch from line power to battery? I now there are some more expensive "inline" UPS which don't have a switching transient, but I want to see if I can use a less expensive unit.
@barlop is not being very nice. He asked a question, turns out the command wasn't working ( nor is it a standard command ) in addition he claims he asked a question which he didn't implicitly ask.
i'm not complaining, just observing.. Windows 7 is no longer prompting me when opening a cmd prompt.
My UAC setting seems to be default
I open a cmd prompt start..cmd I get no prompt so one might think it's not running with administrative privileges.
But I can create a file on c:\
Why would...
> Other possible side effects of taking calcium chloride include:
A chalky taste in the mouth Hot flashes Lowered blood pressure Loss of appetite Feeling sick (nausea) Being sick (vomiting) Constipation Stomach pain Feeling weak Mental disturbances Extreme thirst Passing a large amount of urine Bone pain Kidney stones Irregular heart beat Coma
@JourneymanGeek For dogs, yes :/ "Calcium chloride can be poisonous to dogs. In fact, large enough quantities can lead to kidney damage and even death in dogs. If your dogs should ingest calcium chloride, they should be taken to the vet for medical care."
"At least two people have died from heart attacks while shovelling snow in Buffalo, New York. Every winter, about 100 people in the US die doing this. "
"when healthy young men shovelled snow, their heart rate and blood pressure increased more than when they exercised on a treadmill. "Combine this with cold air, which causes arteries to constrict and decrease blood supply, you have a perfect storm for a heart attack,"
"Home Office officials bungled the announcement of David Cameron's new English test for migrants policy after they misspelled 'language', it was revealed today."
I have some trouble trying to POST a old Intel 486 DX motherboard. If i power up the board , the CPU becomes hot quickly and it doesn't make any beep noise, but only background noise (even without RAM sticks installed).
There is one problem though : the i486 DX-33 (MHz) CPU is missing 5 pins
He...
Next you'll see that no, Broccoli is soooo early-February 2015; you should drop that and use webpack. And don't even get me *started* on grunt, what are you using *that* for, you should drop it and use gulp! But nevermind all that, because webpack is too August 2015. Drop that and use rollup.js lol you're still using rollup!? What are you, a noob? No no no, all the cool kids use system.js
Jelly, 7 6 bytes
_/ị“ḃ»
Typing on phone. Will add description.
(1,0) goes to A, (0,1) to B, and (0,0) to C. Arrays in Jelly are 1-based, and the indexing function ị works cyclically. Therefore, we can just fold subtraction over the input.
_ [vectorized] subtraction
_/ ...
@OliverSalzburg Bit late now, but for your email dilema, the lazy solution would be to screenshot the page as you want it and send a static image as the entire email.
> The heaviest snowfall recorded so far (up to 09:00 eastern time, 14:00 GMT) include: 28in (71cm) - Terra Alta, West Virginia 24in (61cm) - Philippi, West Virginia; Oakland, Maryland 23in (58cm) - Ridgeley, Maryland; Champion and Marklesburg, Pennsylvania
@JourneymanGeek: Do you know how to measure snowfall?
Because this is the advice being given to U.S. residents right now:
> Some tips on surviving a snowstorm - Make sure you have at least three gallons (13.5 litres) of drinking water per person, per day - Use your dog to measure the snowfall
@qasdfdsaq I think we are going to resort to the snow blower. (cc @Bob)
we have an electric snow blower that comes with its own challenges (like making it not blow the snow back at you - wind makes using it impractical) but it requires much less effort to use it than to shovel out feet of snow
What is the average time for a UPS to switch from line power to battery? I now there are some more expensive "inline" UPS which don't have a switching transient, but I want to see if I can use a less expensive unit.
i'm not complaining, just observing.. Windows 7 is no longer prompting me when opening a cmd prompt.
My UAC setting seems to be default
I open a cmd prompt start..cmd I get no prompt so one might think it's not running with administrative privileges.
But I can create a file on c:\
Why would...
I have some trouble trying to POST a old Intel 486 DX motherboard. If i power up the board , the CPU becomes hot quickly and it doesn't make any beep noise, but only background noise (even without RAM sticks installed).
There is one problem though : the i486 DX-33 (MHz) CPU is missing 5 pins
He...
Jelly, 7 6 bytes
_/ị“ḃ»
Typing on phone. Will add description.
(1,0) goes to A, (0,1) to B, and (0,0) to C. Arrays in Jelly are 1-based, and the indexing function ị works cyclically. Therefore, we can just fold subtraction over the input.
_ [vectorized] subtraction
_/ ...
