Anti-Gravity Wheel Explained

It's a little shaky but if you average out the oscillations I think the result is clear. Again, huge thank you's to A/Prof Emeritus Rod Cross, Helen Georgiou, Alex Yeung, and Chris Stewart, Tom Gordon, the University of Sydney Mechanical Engineering shop, Duncan and co. Ralph and the School of Physics.

[SueMead]

This. This is how you get kids interested in science, engineering, mathematics. Something that you hear some kids say is that maths or science isn't relevant to them. Or, worse still, they've heard their parents say that it's useless for getting them a job. It is real world demonstrations such as this that inspire and arouse interest. Good stuff.

[FlightChops]

Love this experiment.
As a pilot I have really needed to wrap my head around gyroscopic precession as related to my instruments, but this illustration gives a new and simpler context to the same phenomenon.

[Knobulon]

Veritasium, providing answers to questions I never knew existed

[captb]

Pure magic, I can even see Hogwarts in the background

[RimstarOrg]

A while back I made a small one and sat it on a digital scale like you guys did here. Zero weight change. And yet placing a playing card on the scale at the same time did show a change. I recall the pleasure I felt seeing that all of the relevant experimental science done in the past held up so beautifully. You gotta love reality's consistency. Kudos for doing this.

[dansanger]

The reason it's easier is because he's in Australia and therefore hanging upside-down by his feet.  Also, they use the metric system, and everyone knows that 19 is less than 42.  Not to mention that 42 is the answer to the ultimate question about life, the universe, and everything.

[RedDevil]

Feels satisfied that you have chosen the right one

[freddyrosenberg]

I want to see this experiment done with one flywheel on each end. Spin them in the same direction and spin them in opposite directions. That would be nice to see.

[Epenser]

What if you try to move the other way (that would be...counter-clockwise) with the wheel spinning the same way. Would it feel the same ? heavier ? Would it be virtually impossible ?

[korlumchukhu]

know i get it...thor`s hammer has built in  gyroscope and finger print scanner in its handles ...so it activates the gyroscope when thor holds it, ....

[AlltimeConspiracies]

Really interesting. Thumbs up from us! 

[Stone]

There's a VR sword/handle glove thing that uses spinning motors to adjust torque to make you feel like you're holding a heavy sword or hammer. You should do a video on that.

[FMN-Music]

wow, I totally thought, it would show lighter, because the scale to my knowledge does not weigh mass, it measures force instead. The mass had to stay the same, but the force down to earth could ´ve changed... Obviously I was wrong.

[AlanKey]

Another superb video Derek that really got me thinking!
I'm showing this to my physics students at college!

[dharma_donk]

I've just began to explore your channel, coming over from Vsauce. Fascinating presentations illuminating new principles and curiosities I haven't encountered before; so thank you for what you do. I'm real glad channels like yours and his exist and are so popular.
I still don't feel like I understand Gyroscopic Precession, although I've only just found out about it.

[johncuzzourt]

I love it when something on Youtube is based on scientifically demonstrable facts and leads to a better understanding of our experiences. Thanks for making this video!

[OHMyResistance]

so basically put another wheel on the other end of the bar and spin that as well and break the universe

[fastberry]

I'll just pretend that I understand this.

[Skoots]

Watched this about a year ago - I don't know anything. Took an engineering class. Understands most of it. School is actually useful!

[TRoberti]

my only question with this is that he struggled to lift the device when he had his hand very near the center of mass. The closer you are to the center of mass, the less torque you have to apply to keep the object upright. When he holds his hand at the base of the shaft right next to the wheel it's little to no torque. So he'd be applying 42 pounds of force to lift the object. Then when it's spinning, he easily lifts it. like it's not even close to 42 pounds. I understand that the spinning causes the object to want to maintain its horizontal orientation, thus negating the guy's need to apply a torque to keep it upright. That is what allows him to hold it at the end of the shaft. which would be impossible for any human being to do. But, shouldn't he still struggle to lift it? he should lift it as if he were lifting it at the base. which was very difficult for him. I think the answer lies with the fact that he threw the device forward and it lifted itself up. But if that's the case, the scale should decrease at that point. Which would make sense to me. But it didn't. Perhaps because the movement, the scale jumped around and made it difficult to see that. Can anyone help me with this?