My daughter found a cute pebble on the beach and I had it in the car for two years. The below are all estimates but will be roughly right.

• Drove the pebble around for 24k miles.

• Pebble weighed 50g.

• Average MPG 45.

• Car weighs 1500kgs.

I’m saying ‘how much fuel’, but I suppose I really mean how much did it cost me. My thin-air estimate is 10 cents. Worth it.

I realize this is an incredibly dumb and pointless question but I've been puzzling over it for a while now and can't come up with a satisfying answer. To be clear, I'm asking "If a seagull was determined on remaining on the roof of a mid-sized car as it continuously accelerated, at what speed would the seagull be forced to take flight?"

10km/hr? 50km/hr? I have no idea.

Would it even be possible?

From an /r/askreddit thread

I asked this question in another subreddit and /u/Rollercoaster671 advised me ask the question here. So what are the chances? Anyone?

This is a relatively easy one but I was wondering if we take all the wealth in the world owned by individuals, so not governments, and distributed it equally across all people, how much money would everyone have?

I was randomly pondering the concept of a light bridge in space acting like a mag-lev "locking system" to keep a space craft in place along a course and using black holes and stuff that bends light to "turn the monorail" and I'm curious how sharp this thing can turn without turning everyone inside to jelly

Assuming the amounts of greenhouse gases stay the same or keep increasing.

The US's military budget as of 2019 was 741,750,000,000 dollars. A pint tub of ben and jerrys costs 5.49 dollars. 741,750,000,000/5.49 is exactly 135,109,289,617 tubs of ice cream. if we divided that up between 8 billion people, that would mean everyone would get 16.8 tubs of ice cream!

Random thought.. would there be any way of estimating how much weight has been added to Manhattan Island since the beginning of its development? Like factoring in buildings (and their contents) bridges, subways, concrete, streets, cars, ppl at any given time and on and on. Is there any way to even get a reasonable estimate?

How much in volume would it amount to? I would imagine you'd look at estimated population statistics over the history of mankind, and then calculate how much an average person urinates per day, and factor in average life expectancy at that time, plus whatever other factors.

At what point would humanity have urinated enough to have filled the Mediterranean Sea?