Tuesday, January 26, 2010

How to Play tennis using soap bubbles and a carpet racket

This video shows how to play tennis using a soap bubbles and a carpet racket. The soap bubbles are formed by a doubled layer of soap at extremities and a layer of water at center.
The polar part of soap molecules are bonded to the water and the nonpolar part are on the outer side.
Carpet is composed of polyester, as the bubble's outer side, so the interaction between them is very weak and the bubble do not pop out.

Monday, January 25, 2010

Flame test as you never seen before

Each chemical element has its own Identity given by the color emited when it is burning. The colors in fireworks is due a diferent kind of elements. Copper give the color green, sodium give the yellow one. This video shows a lot of diferent elements and its correspondent colors.

Oxydation of glycerine by potassium permanganate

Glycerine or glicerol is oxidized by a very powerfull oxidant, the potassium permanganete. This reaction liberates a lot of heat, it's called exothermic reaction.

Science experiment - how to make butter

Learn about science and you make your own butter. Science has never tasted so good.

Bionic Hand is a Reality

"Innovative technology often can make yesterday's science fiction into today's reality. This is particularly true with a prosthetic hand that brings to life fictional accounts of artificial, computer-driven replacement body parts. The bionic hand, called the I-Limb,was named one of the top 50 inventions this year by Time Magazine." From youtube description

Best of Dance 2009 - Austrian Hexapod Championships

Robots at third Austrian Hexapod Championships: Category Dance. The best of 2009!

Sunday, January 24, 2010

Top 10 science trick for parties

This video elaborated by Prof Richard Wiseman from the University of Hertfordshire (UK) show the best science trick that you can do to in a party to entertain your friends.