I’m wondering if it’s theoretically possible for a human to move their limbs in such a way and so fast that they can displace or propel enough air below them that makes their body levitate, sort of like a bird or dragonfly flapping their wings. Let’s just say this person is extremely durable and there’s no risk to tendon, ligament or nerve damage from moving so violently and I imagine it would be quite violent. I’m sure the size and weight of the person matters so just choose some numbers.

I'm pushing 70 years old. I just took an Uber from the airport and I thought about how many cars I've been in throughout my life; taxis, ubers, rentals, rides from friends.

So, how many cars has the average person taken a ride in?

It was made with help from AI.

https://www.npr.org/sections/krulwich/2012/09/17/161096233/which-is-greater-the-number-of-sand-grains-on-earth-or-stars-in-the-sky

Listen I might have a slight diet coke addiction. Recently I've started collecting all the cans. I wonder how many (ish) I'd have to feasibly drink to melt them down into a chair.

For the record I'm about 6' and about 205 lbs. Bonus points if you have a chair design in mind.

Materials, electricity, maintenance crews, nobody sitting at lights uselessly, etc. Is anyone else super annoyed with lights? I think it would be one of the next best things to apply AI tech to

My wife and I recently went to our local casino and we played some of our favorite games. We were betting about the same time and ended up with the same exact board
Curious if this is something that happens often

Im watching Star Trek: TNG and clearly the benefits of teleportation are easy to enumerate, but they still sometimes take a shuttle. Im making two assumptions:

1) warp engines work on some version of alcubiere drives which are known to have immense energy requirements

2) the specific mechanism for creating/destroying matter is unknowable, but the amount of information is not (approx 7x10^27 atoms)

Just comparing those two actual elements, which would be more energy efficient - the warp drive or mapping/storing/transmitting all of that data inside of 5-10 seconds?

Edit: To everyone who is doing the math, this is so cool and thank you. I am not a math person and wouldn’t even know how to start breaking this down or really understanding what considerations go into it.

Given that a portion of the weight is being held up by the ground, what weight and/or force is Mark Felix actually dealing with here? Do you take the weight of the column not directly over the base of column and that's it?

And maube less mathematics, does he have an advantage over others due to arm span etc? Or does the competition account for this?

I know "weight" is sort of the wrong metric here, but converted to kg, how much is Cap pulling here?

How many times would one person have to spit to fill a bathtub? How about a pool?

Curious how long it would take for a 12 oz aluminum can of liquid to reach an equilibrium temperature inside a normal, average fridge. Assuming a normal fridge, and obviously how much the fridge is opened during the time, but I’m only interested in the perfect scenario of it staying closed for however long it takes. I suppose if you want to go above and beyond then it would be cool to know how a single open of the fridge would affect that! I’d also be interested to know how much the math changes (assuming it does at all) depending on what the drink is, such as the difference between a soda, beer, or like a sparkling water.

(The can is starting at room temperature)

Saw this post about a downhill longboarder hitting 94 mph: https://www.reddit.com/r/longboarding/s/ZyF6DmaYCF

What if someone built a ramp at the bottom of that hill and he just kept going? How high could a person actually launch above the ground?

What kind of ramp would it have to be? I'm picturing something like a quarter pipe, but I've also seen those big straight wedge ramps, and ski jumps that curve and then go straight. Does the shape matter a lot at that speed, or is a ramp a ramp?

How big would it need to be? I assume if the curve is too tight he just gets flattened into the ramp.

How steep should the end be if you want max height? Straight up seems like the obvious answer but that also seems like a terrible idea.

How high would he actually go?

Assume he's a serious athlete in good shape, standing on a regular longboard with no bindings, and he wants to go as high as possible and survive the launch.

Rough math using industry averages. A 15-gallon fill costs around $50. Retail margins averaged a bit over 40 cents a gallon in 2025, so 15 × $0.40 ≈ $6 of gross margin. Card fees alone ran 8.4 cents a gallon in 2023, which is about $1.26 on this tank. After the rest of the station's costs, the video lands on roughly $2 of profit. How would you split the remaining costs between labor, rent and utilities?

If there was a group of people and they all had a straw that reached the pool, and they all took a sip at the same time... how many people would there need to be to completely empty the pool?

Edit: spelling

I’m talkin time and calories saved over long periods.