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6:13 wait, that car... and the little girl earlier talking about Star Wars, how OLD is this video??? Are you a time traveler?

Nice 💪

Good job but what about friction?

So does every substance you use to propagate sound vibrate differently to different tones, and if so, what are the frequency shapes of air and how could we image those?

I enjoy making spinning top-based centrifugal spintoys with LEGO (examples on my channel). Lots of fun to design and play with. Combining LEGO constuction with gravity and non-LEGO springs and elastics makes many different onboard mechisms possible. These centrifugal tops are always crowd-pleasers at LEGO shows. But exploiting centrifugal force in tops is nothing new. Japanese and German topmakers put centrifugal force to excellent use ca. 1850-1930. And much older examples can be found in large vintage top collections.

awesome, you are a great teacher

will it still run when the top botttle runs out?? or does it need to be re primed ?

You still have to use electricity.

What a fantastic video! Well done!

This is the sort of stuff I did as a kid. My mom was not happy about me taking things a part 😂

Hi, on youtube there are several fountains that work continuously. or, so it should. there is no such thing? I am looking for a model of artesian fountain, without electricity

It must be that the egg shell turns into a buzz saw and cuts through the material. All that calcium is really quite strong in small pieces that hit perpendicular to the surface. I wonder if you put a rim on your sledge hammer if that would have a more whole punch effect.

This is awsomest, would this be a music class or design and teachnology

I think you'd love science and futurism with Isaac Arthur. He talks about space based applications of things like this

Fascinating stuff as always!

EXCELENT!!!!! thanks for sharing, can you tell me where did you buy the Strip?, regards

Bruce the kinda guy you bring a cup of tea , open the door , and wake up in hospital with a bandage on your head😂

This is a great project that we are trying to do. We are having a problem finding a motor. Where did you get yours?

The Earth is flat with Firmament, and stationary.

I hear cups of water screaming

Excellent. This video was perfect for my child's second grade physics class.

Gostei, show

This centrifugal force is clear to me, but why sand corns center in rotating water in a bucket?

8:17 thats a creative perspective.👍

I trying to do that experiment at home to show it to my children, but i don't get a Baby Doll to a float. What pressuere did you use and what size of jet?

Love this. I will not be able to think of cycling the same ever again...

This is how the workers catch Durian fruit with burlap sacks from heights of 80-165 feet. The sack snaps like a whip when they catch them czcams.com/video/k_m3vZLmTUY/video.html

It's like a miniature form of artificial gravity.

This is perhaps the most popular experiment in the world.

Bit of parametric resonance going on, especially when liquid. Energy is also being expended in the elasticity of the knot end and string.

Science!

4:56 the free fall phase is amazing! What I love in free fall, is that raising object are also in free fall...

You are now Certfied Centripetal force bender. 😅

With an 18ft (~5.5m) string the tray is travelling ~8.2m/s. One revolution ~2.1 seconds.

LOVE the more in depth videos please do more

Hey Bruce! I'm just starting out my career as a science teacher and finding your channel has made me so happy. I've been watching every video! Thank you so much!

Hej Bruce, your students must love you 🙂 I definitely would have back in the days if I had you as my science teacher. But no, there were mostly boring folks… 😞

Thanks , for yours vudeos. One simple question. When you release this construction for a "free" fly... seems the center of rotation is somewhere near to water. So, probably there is not enought centifugial acceleration to keep water in place. But it steel there. How it selfbalanced ... ?

This was an epic show of skill, you make it look easy. This is one of those experiments that can mess with people's minds, it can look fake or unreal even when you **know ** this is real. In fact, if you hadn't shown those two fails I would have been one of the first to jokingly mention "glue is still an option" in one way or another haha.

Great video, I am relieved you didn’t fall off the stadium as you were swinging it round! You will need a hammer thrower with higher speed and strength to see what string length can be achieved😁

When I taught this topic, I also made some circular saw blades out of paper and attached them to hand drills with magnets. They worked brilliantly for cutting pieces of foam. Just keep your finger clear because that would be a nasty paper cut.

Bruce, you are simply one of the best. Thanks for all the knowledge and laughs you've shared over the years. You are a true hero, good sir🤝

miraculous!

I haven't watched you in a hot minute but you truly do make science fun.

It would be good if you could measure the speed of rotation and capture several pictures of the horizontal angle at different speeds of rotation, and then draw conclusions on the horizontal angle of the liquid surface as a function of the speed and the length of string.

I do this trick with my kids in the hammock to give them a ride

Maybe the slate was cooled in that particular spot. As the water cools down, so does the air inside.

I'd love a good youtuber battle of this

I'm intrigued about the physics of bringing it to a halt without spilling. Why is it easier with shortening the string? It's there a physical reason it's impossible to bring to a stable halt at 14 ft? Is the system stable as it 'coils in' around a cylindrical axis (it looked like it).

I would love to see the lager one again and the string progressively getting shorter and then eventually stopping it like the short one. 🤔 Edit :never mind I saw it