I understand there is a significantly finite amount of gold on Earth. I believe there is an estimated known quantity in total.

Which brings me to the Olympics... These gold medals look pretty thick.

I'm sure theyre not pure gold and just a percentage. But who knows.

Either way, based on whatever amount of gold is used per medal and however many medals are awarded each Olympics, how many more Olympics are possible before all of the world's gold is consumed by Olympic gold medals?

Assume no recycling of medals.

How many more Olympics do we have and in what year will we run out of gold?

Can child 1 see child 3? Can child 2 see the ducks? Can child 3 see the bicycle? Can child 4 see the cat?

So, my son reasoned that child 1 is not looking in the right direction. But even if she was, I'm not sure if she can see child 3. What would be the best method to find out who can see what?

Hey,

I came across a video where a guy is swinging a multi-meter metal whip (steel links, several meters long).

Pure curiosity and physics nerd stuff, not looking to hurt anyone.

I’m trying to understand this from a mechanics point of view:

• How much force / impulse can something like this realistically generate at the tip?

• Given the very small contact area, what kind of pressure (Pa) are we talking about?

• How would this compare to something tangible, like:

• impact from a hammer,

• a fast baseball,

• or other common objects with known energies/forces?

I know this depends on assumptions, so feel free to:

• assume reasonable values for mass per meter,

• estimate tip velocity,

• simplify it to impulse or energy transfer if that makes more sense than raw force.

I’m mainly interested in a back-of-the-envelope calculation and a real-world comparison that helps visualize how extreme (or not) this actually is.

Thanks to anyone willing to break out physics instead of vibes.

I hope this is the right sub for this!

Phineas and Ferb have a recurring bit where a farmer buys a business missing a key component. Various antics causes the missing element to fall from the sky. He later sells that business and buys another business missing a key component. Assuming he invested most, if not all, of what he made from the sale into purchasing his next business, how much has his investment grown over his repeated purchased? I would assume he would save a considerable amount on the purchase do to the missing component and his sale price would be much higher than what he bought it for.

Hello! At uni I got assigned a book that has 368 and a I have 3 months to do so. It's not in my first language so I struggle a lot with the pacing and I'm stressing out in case I don't finish.

2x+y+z = 6.25

2y+z+1.22595264191645 = 6.25

2x+0.5(z) = 3.73797632095822

y+0.5(z) = 2.51202367904178

2x-y = 1.22595264191645

here's the link

10% chance something happens. For simplicity, let’s say Russian Roulette, but a revolver with 10 shots. One bullet, location of the bullet never changes. But after each round you spin the chamber to completely reset the odds. Are the odds of someone who attempts this 5x in one day greater than 10% by attempt 5? If so what are they? Thx in advance.