Geogebra physics tips

Made some quick tutorial videos for making some simple physics models in geogebra (amazing opensource dynamics maths program).

I need to work on my radio voice but might be helpful.

Microscopic Laser Shadow Imaging

Great new demo from the naked scientists. See the shadows of tiny animals with a laser pen.

The technique can been used to turn a mobile phone into a microscope which could greatly help medicine in poorer parts of the world.

Solar energy: Europe's first commercial solar plant

Melting rock using sunshine