Magnetic remote manipulation

First of all - this video is real!

These guys bought an inexpensive scrapyard electromagnet at a well known onlineshop.

They used this strong magnetic field to manipulate small balls which were equipped with controllable small electromagnets. The result is just absolutley amazing!

I do not want to know how much current the big magnet draws ... 

I'm also worried that the strong field could damage your Iphone, smartphone, laptop, mobile phone and pacemaker! Just look at it!  

This is a typical example of geeks having fun !

Ejection Seat

Ever wondered what to do when you're travelling at Mach2 and  forgot your keys at home?

Just use this new high tech and absolutley amazing ejection seat to get off the train/airplane:

 

And here we have a very interesting video of the ejector seat in action:

Model of a particle accelerator

Model of a particle accelerator

Some time ago I had to conduct a presentation about a special kind of particle accelerators.

In order to give a simple example I built a little model of a two staged particle accelerator

out of a old computer mouse's ball, two coils and a CD-spindle's base plate:

The metal ball represents a charged particle of any kind.

The two coils represent the drift-tubes which most accelerators use.

So every time the particle (ball) crosses the drift-tubes (coils) it gets accelerated: