Your submission has been removed for the following reason(s):

ELI5 is not for whole topic overviews. ELI5 is for explanations of specific concepts, not general introductions to broad topics.

If you would like this removal reviewed, please read the detailed rules first. If you believe this was removed erroneously, please use this form and we will review your submission.

Your topic should be clear from your title. Your title is pretty vague. Entropy has been covered pretty well in past threads, you should search and see if you can find something there.

Even with cheap lighters, you get what you pay for. My wife bought me a 75¢ lighter because it looked cool... I got maybe half a days use out of it

[deleted]

What's your question?

The universe is filled with stuff that stuff is getting further and further apart, and we are not making new stuff. At some point all the stuff will be so far apart it'll never interact with anything ever again.

Entropy

Yeah BICs are def the goats for cheapo ( and in my experience the only cheapos that also often function in the wind ) .... anyways glad that i did stop smoking

Actually it is! https://science.howstuffworks.com/innovation/science-questions/hang-upside-down-how-long-safe-deadly.htm.

We evolved to stop things like blood pooling in our feet.

Granted you'd have to be upside down for a really long period of time to die from it, but bad things can happen in shorter periods of time.

£1 for one isn't bottom of the barrel. Used to be you get 6 ultra cheap flint ones for the same price as 4 ultra cheap small ones, used to work in PoundWorld.

[deleted]

Ah. Yea ok live in us so don't know how shit one pound if I am correct. But one pound lighters are. At least over here I have never encountered a cheapo that bad. If you find bics go with them for a cheapo.

i bought two zigzags electric lighters for £1.50 today, the flint and wheel was £1 for 1?

i honestly dont know about the cost to make them but i find the electric ones much better to use

Can't compare the cheap ones from dollar stores to Bics. I've been using Bics for as long as I know and I always use up the gas before the flint is gone. If anything, when the gas is done, I take the flint out to reuse in my zippos.

yes buying bottom of the barrel, not talking about Zippos here, talking about the £1 a lighter ones

It’s cheap, it’s easy, it’s reliable. If you I want to make a lighter as cheap as possible and still work, that’s the way. The “click” ones involve a piezoelectric switch which is still very simple and cheap, but not so much as a piece of mischmetal and a wheel.

What ones are you buying and as for why. Its easier and cheaper to make the flick and flint. Add to that it's an old design, everyone and their cousin has used one. It has become something we immediately associate with a lighter. As for the broken flint, never had one break. Nor encountered a wheel that bad. Don't know what brand your buying. But it seems to me that your buying bottom of the barrel.

THink of a ball. There's one point on the ball that's the top of the ball. It's a very precise point, but it's there. Any direction you go from that point isn't going around the ball - it's just down.

Once you're off that point, you can go around the ball. But on that one point, all you can go is down.

Earth is the same.

ok so all of these answers talking about gravity having less influence on bats are ignoring physics and how the actual physiology of how blood flow works. Acceleration down from gravity is the same regardless of mass, so that doesn't matter. And it is only venous blood that pools lower down. As long as that blood can get back to the heart, blood pressure and blood flow will be maintained. just like humans, bats will have things like one way valves that will make sure blood in their veins only goes towards the heart and not pooling in their head.

It's not deadly for humans. Gravity doesn't stop your heart from pumping blood throughout your body. By that same logic your feet would always be pooling with blood when you're standing. At most you'll get headache from hanging upside-down for long periods of time.

The North Pole is a single point, like a mathematical point with no area. When you are on that point then everything is south. When you are even one millimeter off the point then what you’re thinking becomes correct.

[removed]

I'm afraid I'm not at liberty to disclosure that level of information. The other guy in my head said so.

[removed]

Think of it like standing on top of a hill. If you go straight to your destination, it'll be straight down hill in some direction. If you start out a little left or right (west/east) you'll have to make a curve (longer path) to get there.

[removed]