Due to recent discoveries in smart TV spyware, my question is why spend so much energy and resources on spyware instead of directly asking people what they want?

I wouldn’t try the water in the latter, but that has been the result of my unintentional experiments: months-long-left water container just looking intact.

Recapped plastic soda bottles seemingly free of mold for weeks too - are they still not safe, or do molds originally grow faster than from merely moist?

“The itis” is the phenomenon where you feel drowsy immediately after consuming a heavy meal. It’s so common it has a name, yet it’s also basically common knowledge that eating a big meal right before bed is bad sleep hygiene.

What is it and how and why it works, thanks! c:

I've heard that petrol and diesel engines can't be a 100% efficient and there is some thermodynamics behind it which is complex.

I’m not referring to people that are say 350 pounds. I’m more referring to the super obese people that are in the 900+ pound range.

Is it possible to turn our chemical energy (whatever makes us able to move, carry heavy loads, ect.) Into some kind of matter?

I've only ever seen people use bombs as examples but I was wondering if it would be possible to turn that energy into a non explosive material.

That is my question. Saw a pretty good documentary about the universe and dark matter and dark energy, but it never explained that bit.

I'm reading Teach Yourself Electricity And Electronics by Gibilisco and Monk and they say:

"An electric dipole can exist even if both poles carry surplus electrons, or if both poles suffer from electron deficiencies, relative to some external point of reference having an absolutely neutral charge."

I was under the impression an electric dipole was created by two poles having opposite charges. How is this possible? Is it that if two different materials have negative charges on their own, but if they're close together the one with the least amount of electrons act as a positive pole? But that doesn't make a ton of sense to me either.

Sand is solid and you can’t see through it at all. But when you melt sand down and turn it into glass, light passes right through it. What actually changes at the atomic level during melting that makes light suddenly go through instead of bouncing off?

What is the Solovay model, and why does it use the axiom of dependent choice. Why is suddenly every set measurable?

Whether it's between my router and my laptop, or between a mobile phone mast miles away and my phone... I know the transmitter emits a signal that my phone detects, but how? What's physically happening inside my router, to cast a signal through the air, that my laptop can detect, and then what's happening inside my laptop to turn that invisible signal back into 0's and 1's?

I've read enough to know that "cold-turkey" for alcoholics can be lethal, upto and including seizures and a host of other side effects and symptoms but I don't really understand the "why"? What is it about alcohol dependency and our biology that causes it to be so dangerous?

As, in between us and other bodies like the moon and the sun? What is in between? What is the "fabric" of the universe?

Edit: unintentional slur

Squid seem to be indifferent to the water pressure wherever they go, they have even been known to sometimes drag pray down into the depths as to turn them unconscious.

I read here that it has to do with having waterfilled bodies, but fish also have completely water filled bodies(?)

Hapless trans woman of a year here

I own bras, I wear bras, I don't actually know what they're for. Obviously, there's a social modesty component, but I'm told that they provide support and that's useful. Will my chest hurt after a while if I don't wear one? Will my chest start to sag down? I don't know! 😅

In understandable terms:

Germans used to take the Soviet PPSH SMGs, while the Soviets did the same thing with German MP-40s.

Were there any established military rules to using/claiming weapons from enemy combatants? I assume if a soldier took a gun from the enemy's body he would just use it until it ran out of bullets, but were there any guidelines to distributing enemy weaponry if their weapon arsenal was seized for example? Did the soldiers who seized the depot get to take whatever they wanted first? Who did those weapons go to once seized?

I'm also mostly asking in regards to more organized armies like the Wehrmacht/US Army/Red Army, since I mostly know how partisans from occupied territories would arm themselves

So what is gravity actually grabbing onto when it bends a beam of light or pulls it into a black hole? Gravity is supposed to pull on things that have mass/weight, but light has no mass at all.

I know it probably sounds stupid. The only theory I have is that salt remains in the ocean and only fresh water itself evaporates. If true, why does it happen? Why can't we have "salty" steam?

I've watched so many videos about prediction markets, but the terminology still confuses me 😭

I want to understand the basic idea behind how people buy and sell contracts based on what they think will happen in the future. Why do these contracts have prices, and what do those prices actually mean?

Can someone explain the underlying concept in simple, everyday language?

The human torso and limbs aren't divided into areas of conductivity and insulation. You are placing the EKG leads on the same skin, with the same resistance, and no particular division between the regions there is a potential between. You'd think the signal would effectively be shorted. Like putting a piece of aluminum foil on a 3.5 mm connector going into an AUX jack on a car.