I get that flash drives can have malicious code on them, but how is it that just plugging them in can be a hazard, without ever opening anything?

Assume we have two cars of the same model, and one is stationary and one is driving 30 mph. The car driving 30 mph crashes into the stationary car in a head-on collision. Who would be in more trouble?

My assumption is that the stationary car isn’t experiencing any sudden deceleration because they are already stationary. However the car might suddenly accelerate. To my knowledge sudden acceleration is better than sudden deceleration.

I don’t ever drink coffee or energy drinks because they usually make me tired/chill? Why is that?

I’ve tried thinking about this at a 30,000 foot level. I know there are some number of unwinnable deals in solitaire, but even a large number of winnable deals are only winnable if played in a certain order. So how could you calculate the number of winnable deals overall? Here are the scenarios I can think of:

of hands unwinnable

of hands winnable, but only when played in a certain sequence (this includes a singular path to winning and also deals that might have multiple paths to winning)

of hands with a guaranteed win (either multiple paths or just one singular path that the player is forced down by proxy?)

Can you determine this? I know the answers are not “threve”, 42, or tree-fiddy.

How does it work? What is the downside?

If emollients are better for your skin biome, should we all start using them to wash with? Would it be better for you than shower gels/soap? The NHS website says emollients are just as effective as soap so just wondering why we aren't all using emollients

Not just cars; choppers, planes, ships, why do the steering have to be on the left or the right, and almost never center. What’s the limitation? I feel you’ll get an even wider range of view that way

Obligatory disclaimer: I’m on mobile and my autocorrect hates me with a passion. Apologies for any spelling or capitalization errors I miss.

Like the title says, I’m having trouble understanding and remembering the difference. I think from what I understand one is more risk-oriented, but I’m not sure at all. I’m new to investing and trying to teach myself as much as possible since I have very small amounts of money I’m able to invest at a time. (Alternative post title: Why economics should have been required in high school 😞) Thank you in advance for the help Reddit!

I was always taught that DNA and RNA work as code to produce proteins. I was aware of telomeres and stuff like that that essentially function as a buffer for chromosome deterioration, but I just learned that there are other types of ncRNA that perform different functions like regulating gene expression. What exactly is this RNA doing if it’s not making proteins? Is it still being read by ribosomes? By what mechanism is it performing these non-protein functions?

Bullets and American Footballs and Frisbees all fly more predictably with higher spin perpendicular to flight path. Is this just angular momentum conservation or what makes it more stable here? Why is this intuitively happening?

I've searched, maybe my wording is bad, but I do not understand how caffeine content works. In tea, if you steep an 8 oz cup or a 20oz cup, using the same tea bag, is it the same mg of caffeine? Or is it diluted in more water? Does that change if it sleeps for 4 minutes vs 15? Same with coffee. Is amount of coffee grounds the deciding factor, or how long it brews, or how much water is pushed through?

And energy drinks...if you drink a half a can, is that now only half the amount of caffeine?

I heard that the AWP is the highly accurate sniper rifle that set a new standard in sniper rifles. Why is that?

Everywhere I looked said there is no center of the universe, but even if the universe is expanding, can’t we approximate it, no matter how big? An explosion has a central point, why don’t we?

For example, a breakfast in America might cost you 20 USD but in Japan, a breakfast might cost you 2000 YEN. Why is the number in YEN so much higher than it is in USD?

i understand how to access it with a computer and established wifi. but where does the wifi come from and how exactly is it made so that i can access it from my computer? how is wifi made? is wifi the same as the internet? if no, then i have the same questions for accessing the internet and where it comes from, as i do for wifi.

ELI5: Hi, for preparing both homemade mayonnaise and tiramisu raw eggs are used. How come that tiramisu can stay in the fridge for several days and still be safely eaten, but it is recommended to consume mayonnaise during the first 24h after it is made? P.S. I mean traditional tiramisu where both raw yolk and raw whites are used, and mayonnaise made from egg, mustard, oil, and lemon juice.

Edit: apparently I was misinformed and the mayo can be stored in the fridge for much longer than a day! Thanks everyone for your help!

If a wheel is attached to a car with only bolts, how do tire pressure monitors work and send the information back to the driver?

I had this insanely, awful, worst calf cramp ever while putting my boots on. It was all sudden, unexpected even though I was drinking plenty of water and took like 5 minutes to loosen. I still feel the effects 3 days later when getting out of the car, stretching, etc. Why is this if the muscle fibres have already loosened?

Hi, I recently got back into sports and had an accident that seems to have caused my nail to detach from the nail bed. A few days later, it changed from black to white, and I can wiggle it up and down. Will a new nail eventually grow back and look the same as before, or will it be permanently affected?

I know it’s some kind of algorithm to determine when you’re about to forget something and shows you the data just before that happens, but I don’t get how to use it and get results from it.

As embarassing as it is to admit, ive never understood this. As a secondary question, why does it render the electronics unfixable?

Do they signal different things?

There have been questions on Agile before, in this subreddit, but I want to understand extreme programming specifically, and I couldn't find any past questions on that.

So I know it uses lasers and all bouncing back but I csnt grasp how they detect the laser because if it hits a object at an angle should it scatter and bounce away not right back? And how do you make sure you don't measure the wrong laser pulse etc?

For some examples of what I'm talking about, look up some trans-border cities like this on Google Earth: Brownsville/Matamoros, Calexico/Mexicali, El Paso/Ciudad Juarez, to name a few. In all of these cases, in the satellite view, the Mexican city looks noticeably lighter in color than the American one. Is there some kind of major difference in building materials between the two countries that causes this?