How does a computer remember what programs I had open after a power outage? | AskScience Blog

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Monday, October 24, 2016

How does a computer remember what programs I had open after a power outage?

How does a computer remember what programs I had open after a power outage?


How does a computer remember what programs I had open after a power outage?

Posted: 23 Oct 2016 05:22 PM PDT

Wouldn't programs currently running be stored in RAM? In which case shouldn't the RAM flush itself after every reboot?

submitted by /u/superepicunicornturd
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Why does Neptune have such strong winds?

Posted: 23 Oct 2016 03:42 PM PDT

According to Wikipedia, it has the "strongest sustained winds of any planet in the solar system, with recorded wind speeds as high as 2,100 kilometres per hour (580 m/s; 1,300 mph)."

Why are the winds so strong there?

submitted by /u/jmprairies
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[Maths] Is there a way to break down borromean rings mathematically?

Posted: 23 Oct 2016 03:35 PM PDT

Although this question is specifically about borromean rings, I'm curious is you can form equations out of 3d geometry, and if you can use that to deduct the if objects would lock or intersect.

submitted by /u/Weedalt
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Is there a chance for a number to never be rolled in a random number generator if it is ran infinitely?

Posted: 23 Oct 2016 07:16 PM PDT

I got into an argument with a friend of mine who is working for a random drop in a video game. He says that if he were to do the task that gives the drop infinitely he would eventually get it. I argued that since it is random and there is no pity timer that even if he rolled infinitely there is still a chance he would never get it no matter how unlikely. So who is right?

submitted by /u/tongueinmybum
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How much effect do national borders tend to have on speech accents. In places where two nations share a language, is it obvious from speech when you cross the border?

Posted: 23 Oct 2016 03:09 PM PDT

Can animals like cats and dogs visualize memories and thoughts like humans?

Posted: 23 Oct 2016 01:04 PM PDT

How has the formation of civilization affected our brains' physiology, if its had an effect at all?

Posted: 23 Oct 2016 01:10 PM PDT

Has there been a long enough period of time since civilization to have a tangible effect on our brains? Is that something even possible to study?

Another way of asking would be whether our brains are identical to pre-civilization homo sapiens. Sorry if this is more suited to r/AskAnthropology.

submitted by /u/christmaspathfinder
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How does the orientation in space of an electron orbital affect magnetism?

Posted: 23 Oct 2016 02:04 PM PDT

Orientation in space of an electron orbital is called the "magnetic quantum number", but I don't understand how it relates to magnetism.

submitted by /u/NuclearStudent
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How could the proton and neutron have the same approximate mass if the down quark weighs about twice as much as the up quark? (~4.8 vs ~2.3 MeV/c^2)

Posted: 23 Oct 2016 08:38 AM PDT

Does the neutron lose mass when it binds with a proton in a nucleus?

submitted by /u/GaslighterThrowaway
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When an object moves in your vision how long does the blur stay there?

Posted: 23 Oct 2016 01:14 PM PDT

For example, if I move my forearm about 45 degrees I'll see a blur for roughly that entire 45 degrees. If I move it for 90 degrees I'll see a blur for roughly the entire 90 degrees. However despite one motion being faster than the other, both motion blurs seem to stay in my vision for the same amount of time. How long is this timeframe?

submitted by /u/Overlord_Xcano
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Why do spacecraft use hydrazine in their maneuvering thrusters?

Posted: 23 Oct 2016 10:22 AM PDT

I get the principle behind the maneuvering thrusters--equal and opposite reactions and all that. But why does it seem like they always use hydrazine? Wouldn't any old gas work?

submitted by /u/Rikkiwiththatnumber
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Why don't the globes get dimmer as you add more globes to a circuit via parallel paths?

Posted: 22 Oct 2016 11:36 PM PDT

I'm currently studying my first unit in electricity in year 9. I was thinking that if you were to add many more parallel globes to an original circuit with, say, 4 parallel globes, wouldn't the amount of amps flowing into each globe be significantly reduced (as the amps need to be shared), resulting in dimmer globes? I understand that each amp carries the same amount of voltage meaning that you could add a few without much effect on the globes, but surely if the amps need to be shared, which carry the voltage, must mean less amps = less voltage per second.

submitted by /u/MrOsci
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