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Videos (536) | Sift Talk (10) | Blogs (54) | Comments (1000) |
Videos (536) | Sift Talk (10) | Blogs (54) | Comments (1000) |
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This is an Euler's Disk
I would be interested to see what would happen just before the disk stopped and suddenly there was no gravity. Even though it sounds like it's spinning faster I'm sure it's just because the edge of the disk is just closer to the mirror.
Suddenly without gravity would the energy cause the disk to rotate making it look like a ball floating in space or would it wobble and take off in one direction?
Could this even be done in space?
Are there any mathematicians in the audience tonight?
Are four questions in a row too much?
Miami Beach condo collapse
I'm going out on limb here but, I hold gravity responsible.
Mordhaus (Member Profile)
Your video, Waterfall Defies Gravity Due to Strong Winds, has made it into the Top 15 New Videos listing. Congratulations on your achievement. For your contribution you have been awarded 1 Power Point.
The newest “pentagon confirmed” UFO is Bokeh effect
I've tried to make the argument that aliens couldn't have possibly crashed on Earth, and that the whole idea is insane. So advanced aliens managed to acquire sufficient expertise at space travel to actually cross the unimaginably vast gulfs between stars, but they haven't figured out how planets and gravity work?
Maybe I should just give UFO believers copies of Sagan's "The Demon-Haunted World" and tell them I'm willing to discuss after they read it.
UFOs are real.
Alien spacecraft on earth are not.
The distances between stars make interstellar travel a pipe dream.
C-note (Member Profile)
Your video, How to Perform a Gravity Assist, has made it into the Top 15 New Videos listing. Congratulations on your achievement. For your contribution you have been awarded 1 Power Point.
We Still Don’t Know How Bicycles Work
I must disagree.
First, it's precession, not procession, paired with the "caster effect" and static friction. It's a self correcting system that only works when in forward motion.
This nonsense with counter rotating wheels countering the gyroscopic effect ignores the fact that only the forward rotating wheels are using friction to direct the path of the bicycle based on their angles. It's not JUST the gyroscopic effect, that only determines the resistance to angular change, it's friction directed by gyroscopic precession and the self correcting caster effect. Come on.
Nobody knows how we ride bikes?! (A different claim from we don't know why they can remain upright when ghost ridden) Nonsense, it's balance plain and simple. If you don't keep the center of gravity exactly above the contact points with the ground, you tilt. When the centrifugal force exceeds static friction of the tires you slide out or when gravity exceeds the opposing centrifugal force caused by turning, you fall. Try turning your bike but staying exactly upright, no lean. Now, when you heal, try leaning without turning, lock the wheel straight, you'll fall again. It's multiple forces in concert.
I think a decent physics teacher would wipe the floor with this. It ignores so much to make these "we just don't know" claims.
Piece of Bread falling over
Gravity. It calls us all back to the earth. R.I.P. piece of bread.
19-Year-Old TikToker Realizes She Lost Her Sense of Taste
Oh wow, for her to say she's really starting to feel the gravity of what Covid means because she can't taste her damn chocolate peanut butter cups does not say a lot about kid's awareness at that age.
Mordhaus (Member Profile)
Your video, Gravity is NOT a Force, has made it into the Top 15 New Videos listing. Congratulations on your achievement. For your contribution you have been awarded 1 Power Point.
Gravity is NOT a Force
I wonder how gravity waves factor in to this explanation.
Fully Unwrapped - Dairy Queen
I hate when you order a Blizzard and before they hand it to you they turn it upside down to show you how amazing it is when gravity doesn't pull it out of the cup.
I should probably go see how my psychiatrist is doing these days. 👨⚕️
Squadron of Canadairs is a formidable firefighting force
Two water tanks, each holding 3,655 litres (810USgal) of water, are located roughly at the aircraft's centre of gravity. The tanks are located predominately below the floor in the hull, with each side having a header tank that rises into the fuselage compartment. Forward of each water header tank is a 340.5 litre (681 litre total) foam tank, enough foam for 20 drops. Typically, the foam tanks are filled with a short-term retardant that "gels" the water, allowing it to hang up in the forest canopy and delaying run-off when it reaches the ground. https://www.flightglobal.com/flight-test-bombardier-415-the-superscooper/88562.article
I know bigger fire fighting planes do, but even little ones like these?! I had no idea they had miniaturized that equipment small enough.
At least this squadron appeared to be dropping pure water....and maybe a few fish.
The Chaotic Pendulum
The pull from the magnets acts as gravity would. It's hard to tell if all magnets are positive or all are negative or a combination of both. Gravity itself is still at work here too and will eventually win bringing it to a stop. I'm pretty sure it stopped soon after the video ended.
I would love to see for an hour. Could this be true perpetual motion?
newtboy (Member Profile)
Congratulations! Your video, Terrified Police Thugs Panic And Pepperspray at Gravity, has reached the #1 spot in the current Top 15 New Videos listing. This is a very difficult thing to accomplish but you managed to pull it off. For your contribution you have been awarded 2 Power Points.
This achievement has earned you your "Golden One" Level 233 Badge!
newtboy (Member Profile)
Your video, Terrified Police Thugs Panic And Pepperspray at Gravity, has made it into the Top 15 New Videos listing. Congratulations on your achievement. For your contribution you have been awarded 1 Power Point.