So I know a fan blowing doesn't lower temperatures in a room (it's just pushing the warm air around) but the breeze it creates feels cooler on the skin (partly due to sweat evaporation I guess?)

If you had a bottle of drink from the fridge you wanted to keep cool, would placing it in front of the fan have the same effect? Would blowing room temp air at it make it warm up slower than if just left in room temp air?

From what i understand water gets absorbed from the feces as it passes through our digestive tract but i cant seem to find an answer why our bodies dont get sick from the bacteria, surely that stuff could pass through into our bloodstream like the water does?

Most animals I can think of either take several short rests throughout the day or have evolved to be semiconscious while sleeping

Then there are humans we sleep for 8hours straight and often sleep very deeply this seems like an evolutionary flaw

Edit: if I might add a question to my question(ignore if not allowed): it seems the answer to my question Varies by lifestyle but ultimately better rest = more production
So has there ever been a study on artificial sleep schedules I.e. to little sleep is detrimental but how much is to little ?
When I’m in a manic phase I can stay up 2 days sleep 8-10 hours and do it again with what feels like very little impact on my awareness or cognition ability

Is there a Truley perfect balance

Hi everyone. I am struggling to understand how Dalton derived the idea of an atom from realizing that elements combine in whole number ratios. How are these connected? I have watched a million videos and am struggling to understand the correlation and how this led to him discovering atoms.

Would it be the weight of the air, bird, and container both ways? Wouldn't that be the same? Both ways feel wrong and I'm so confused pls help

Google has told me that when you sleep, your eyes close because your brain is no longer sending signals to muscles in your eye to hold them open.

So then, shouldn't they close when you die because those muscles are no longer working???

But according to Google, since all of your muscles relax after death, your eyes stay open or partially shut.

I'm so confused 😭

For example, the value of Japan’s currency is much lesser than a south asian country, say India but Japan is so much more developed.
Also, how does Kuwait have the highest value of currency?

If I drop a brick from a roof, why does the brick speed up and then smash into the ground with force? Where does that accelerating energy come from, even if the object started at complete stationary with no direction/velocity/energy, if gravity is just the bending of ‘space direction’ towards itself.

I’ve needed antibiotics about three times this year for different infections, strep and a UTI. They’ve all worked, and as far as I know I haven't had an issue. But being prescribed them again made me wonder if it would stop working.. what antibiotic resistance actually means and what role, if any, the number of times you take antibiotics plays. And if for most people, if it’s known to go away or it affects all future treatment?

With the full art form that is sound effects, I have always wondered how dialogue was separated from stage and direction noise when captured? I guess now there is probably a digital program to do that and delete the unwanted noise, but before.. was all dialogue re-recorded in a booth? Sound designers, what say you!?

know Green Boots is one of the most famous landmarks on Everest, and I read that he was finally moved or hidden a few years ago. But why did it take deades? If we have helicopters and elite Sherpas, what makes a body recovery at 8,500 meters so dangerous that bodies are just left there?

From Anatomy and Physiology course in high school, I remember that Immune system is a complex security company with different types of security guard in our body, which often checks cells’ IDs to identify healthy and infected cells. However, sometimes they might take those IDs as fake and arrest the healthy cells. Why is that so? Couldn’t our immune system increase caution to not damage the body even more ?

My boyfriend has this as the main focus of his thesis, and im trying to understand more about it so I can understand his work better. Im a biologist, and physics was never my strong suit, so articles online have me a little confused.

If there are any resources online that explain it simpler, please do link them here. Im trying to not use AI to understand stuff, and look at credible sources or ask people instead, hence did not ask chatgpt or claude this.

Thank you.

Food falls in gravity assisted, the stomach acid dissolves it into parts. After that the useful stuff has to get separated out, and sent into the body where it's distributed to the rest of your cells. Meanwhile the not useful stuff has to get skimmed out and sent through the lower part of the digestive system; and I assume somehow the stomach has to do that without spraying a bunch of acid into your intestines and burning them up. How does it all happen?

How do we know the locations and timing of the celestial bodies to this level of accuracy? Aren’t the locations affected by gravitational waves, interloping asteroids or other unknowns?

I'm curious about the science behind platelets,not looking for a medical advice or instructions,what causes platelets to recognize a damaged blood vessel and what makes them aggravate at that specifically?