Tag: magnet

A Few Amusing Physics Phenomena

By Anupum Pant

Veritasium has always amused us with very interesting physics phenomena over the years. And now, as always, the channel has asked its users to send their answers to these 5 interesting physics mystery.  Here have a look at them…

Do leave a reply on his channel if you think you know why these happen.

For all of the 5 things, I do have my own theories but I’d rather wait till the next week when Derek will release the solution video. I do not want to publish my haphazard theories, which might be wrong.

However, I’m quite sure about one thing. Why does cereal get attracted by a magnet?

That is mostly because it has iron in it. By iron I mean real iron in its pure form. In fact, you can even extract iron from cereal. The best part is that it is not even difficult. All you need is cereal, a neodymium magnet, water, a bowl and a resealable bag.

It Sure is Magnetic, But is it Solid or Liquid?

By Anupum Pant

Figuring out if glass is a solid or liquid is pretty straight forward. This putty in the video however, behaves a lot like pitch (the same thing that was used for the world’s longest continuously running experiment). On applying a greater and abrupt impact, it shatters like a ceramic. While it flows like a liquid if you let it. But that is not even the point.

The point is, it can be magnetized! And it sure is another one of those awesome science toys you can have on your desk all the time. By the way, the other ones are Gombocs, constantwidth objects and feel flux. It must so much fun to play around with such a gooey magnetic material (putty). Some good soul will gift it to me for my birthday…may be.

It stretches, bounces, breaks, flows, can be magnetized and what not! It’s like the ferro fluid, but more awesome. Even this, like ferro fluid, has very very tiny magnetic particles dispersed in a putty like substance which makes it magnetic.

Who wouldn’t want to try out that Neodymium magnet swallowing trick! Since it looks like it’s live, they call it the magnetic thinking putty. Perfect name, I must say.

Everyone Knows Magnet in a Copper Tube, But this…

By Anupum Pant

I’m sure you know that if you let a strong magnet drop along a thick copper tube, the magnet falls in a very interesting manner. It falls slower than it normally should, delaying the span of the fall, as if gravity acting on the magnet mysteriously drops. If you haven’t heard about it, I’ll give it to you, you probably aren’t a YouTube addict, and that’s definitely good (and maybe also bad because there’s awesome stuff out there which you are missing). Just watch this, what I just said will start making sense…

Why does this happen?

OK, that’s pretty cool, but you knew about this little magnet-copper trick already, and you were expecting something more? You got it.

Whatever you just saw neither was a magic trick, nor was the Copper tube acting as an anti-gravity machine. This is pure science, can be easily explained by it. Here…

When a magnet moves quickly near a metal, it generates current in the metal. Here, current is generated in the Copper tube.
The current generated in the tube generates another magnetic field which opposes the magnetic field of the magnet and pushes the magnet upwards, away from the force of gravity. Gravity being stronger, pulls it down, but not with as much force because the magnet is being pushed in the other direction too. That’s the simple science behind it.
Still, someone else could explain it better on a page which is completely dedicated to explain it to you. [Here] and [Here]

But, you probably knew even that -The trick and the science behind it. So, there’s more for your-kind-of-people.

A new skill-toy that uses the same…

Feel flux. An amazing new skill toy that works on the same principle. Who would have thought, playing with gravity could get fun. The crowd funding campaign for it runs on indiegogo. Go fund it!