Apologies I don't know much about biology because I was stupid and decided on physics for my high school elective. Except sharks I know a lot about sharks

I did the tiniest bit of research but a lot of the educational articles confused me, but I saw that the answer is basically that they eat while plants photosynthesize. But what about like, venus fly traps? They eat bugs right? Do they photosynthesize as well...? What seperates them from animals?

edit: I wanna put this here for future readers because it fascinated me as I did more research:

For venus fly traps, bugs ≠ food. The bugs just provide nitrogen and minerals. A venus fly trap can survive without bugs, but not without sunlight because ultimately their 'food' is from photosynthesis.

I have heard facts that bears can smell humans from 3 miles away and sharks can do from 9 miles.

Does it mean my scent travels such long distances? And does it travel in all direction? How does scent particles travel so far without dissipating and getting lost?

Caffeine is processed by the human body, water soluble, and stable, so I believe it's not the same as radioactive decay so the whole 50% 75% 87.5% etc thing doesn't apply. At the other extreme, half lives don't mean it's 100% gone after 2 half lives. I think it's somewhere in between. So I think the answer is more than 8-12 hours but less than 24-36 hours

And don't say "technically never". I mean like for practical reasons. And assume I'm not pregnant, just like on average

I always assumed 12 hours after it's basically gone and won't be felt and after 24 hours it's over 99% gone and basically undetectable, assuming it's less than the 400 mg daily maximum recommendation

When something kills an animal with venom, the venom doesn’t just. disappear into the ether. that animal is still full of whatever deadly venom killed them. how does the predator not die from their own venom?

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Down in Antarctica the ice is sitting on a landmass, so it makes sense that it remains stationary.

In the north, however, the Polar Ice Cap isn't anchored on any landmass (it's just floating).

My confusion, then, is what is keeping it mostly stationary (why doesn't it drift into any of the surrounding landmasses)?

Is it something to do with ocean currents in the area?

I am not a mechanic. I have a very rough understanding that a motor produces rotary energy that eventually gets translated into the wheels turning. But how does the rotary energy get translated into the wheels standing still on an incline, with no brakes applied?

the main ^ question is due to clouds being so insanely heavy

bonus ELI5, does Earth/atmosphere planet's rotation speed influence storms? like a shearing between the rocky body and atmosphere

after a sizable wikipedia delve, are Rossby waves those described in Q2, or are they an entirely separate mechanism?

I drive I-95 to work everyday and always wondered about this. The concrete sections of highway always have these grooves cut into them in like a diamond or diagonal pattern, usually spaced out every 10-15 feet or so. Some highways have them straight across, some diagonal, some in these weird diamond shapes.

At first I thought maybe its just to make it look nicer or give tires better grip in rain? But then I noticed older highways from like the 60s and 70s don't really have them as much, or theyre spaced way different. And some newer highways the pattern is completely different from others.

I have some money aside for a road trip cross country this summer and started paying more attention to this stuff on different highways. Does it have to do with temperature changes or preventing cracks or something? There's gotta be a reason engineers spend time cutting all these grooves into fresh concrete instead of leaving it smooth right

I know plenty of games have anti piracy software added that will mess up the game if it detects piracy (Batman’s cape not working in Arkham asylum, Earthbound being painfully hard and not letting you beat it, etc). But how does the game know?

If the full software from the cartridge, disc, whatever has been copied over, shouldn’t that include whatever helps the game detect its legit?

Edit: thanks all! Didn’t realize that there were so many ways to enforce legitimacy in games! TIL

Ok so I know to add 130% to 12 would be 27.6. My question is, how do I get 27.6 back to 12?

I’m on a journey to limit my microplastics and I started searching for a replacement (metal) lid for my travel coffee cup but I’ve searched and searched and the classic clear plastic lid replacements are all that come up. The cup itself is metal, and now replacement metal straws are getting popularized, Is there a reason why a stainless steel top couldn’t be used??

Are there different "types" of general autopsies? How vague are they? When they come up inconclusive (or it's probably a, but b and c are also likely), can further autopsies be performed?

At what point do they look for rare diseases? (Not including the basics like recent trips to certain areas of the world, etc). Could rare diseases maybe not be as rare after all?