If the water pressure was high enough to spray out, the ball would simply fly off. It’s the perfect equalization of the weight if the ball and the pressure of the water. You can do this yourself at home. Try this:
Find a marble that fits the opening of your garden hose perfectly. The hold you garden hose upright, place the marble on top (do NOT hold it in place), and begin turning the the valve until you reach the correct pressure. You’ll notice that without enough pressure, nothing happens at all, and with too much pressure, the marble will fly off the top of the hose.
It’s a balancing act
Now do a marble that weighs 500 lbs.
It’s gonna spray
Why ask a question if you think you know better
Bigger marble, bigger hose. It’s the same principle scaled up.
The variables in this equation are:
- Diameter of marble
- weight of marble
- diameter of “hose”
- water flow/pressure
Along with some friction outliers, these can be adjusted to find an equilibrium.
For every weight of ball (within a certain density limit. Won’t work with a black hole, for instance) there’s some pressure and volume of water that will balance the weight and size of the ball perfectly to create a thin layer around the entire surface. Once the ball becomes too dense, there’s no volume/ pressure combo that would do the same (the weight would require too much pressure by volume of water, so it would either stop it or fly full force by while barely levitating the ball). But I don’t think whatever density that would be is found in pressures you could find on earth
Pressure is measured across surface area. The same way buoyancy is measured by water displacement. A larger object has more surface area. 1 PSI of pressure won’t be very much if the object only has 1 square inch of surface. But it would be a lot of pressure if the object has 500 square inches. 30 PSI is enough to keep your car off the ground. A few PSI would be enough to lift a 500lb rock if the surfaces were prepared properly.
Lol
It’s all about the pressure; more weight needs more pressure but they tune the pressure to match the weight of the ball.
My advice: (not to OP.) Block this guy. I don’t think he understands that he’s not on Reddit and karma doesn’t matter. He’s trolling and wasting your time. He asked, people answered, and now he’s just arguing. Troll behavior. I’m blocking him, and my Lemmy experience will be better for it.
The way I like to put it. There are no stupid questions, only stupid people
I know this is No Stupid Questions, but has something happened to Lemmy?
Is someone inflitrating lemmy with a load of troll accounts designed to rile up outrage?
Totally suspicious behaviour lately
It could be related to the unseasonally hot weather in Europe/other places?
Honestly reminds me of when r/Canada was suddenly very pro-USA and anti everything good about Canada. Suddenly every article posted was about failing healthcare, “immigrants bad” and needing to drill more oil. Canadians bailed en-mass.
For some reason, all these accounts speak the same way. Like they’re all from the same area or something. Really obvious if you catch writing mannerisms.
I have this guy tagged, he’s been here a while and started by denying the artemis II launch and other stupid shit.
I kinda get what you mean, there’s this other person using lemmy as his personal IT 101 professor, his posts annoy the shit out of me too. But apart from that it’s them and this guy when I think about idiotic posts
Why would you be outraged by this??
Go take a look at the responses to comments by op.
If it were concentrated to one small hole, it would. The same way putting your thumb over the end of a water hose will make the water spray farther. The wide base around the bottom of the sphere gives enough space for the water to come out without squirting far.
Here’s one that does squirt out more than most: https://youtu.be/yEeEU-WRbP0
Maybe they have the water pressure too high, maybe the tolerances are too low, the sphere doesn’t fit the cup quite right, so they need higher pressure for it to spin. Considering the shape of the base, I think they designed it this way, though. I like the water splashing out of the bottom, that makes it more interesting.
Must be magic, like you’re thinking.
S Q U A R T
because that force is translated into making the ball spin
