Condensation

http://www.bbc.co.uk/learningzone/clips/condensation/224.html

Particle Theory – liquid into gas

http://www.bbc.co.uk/learningzone/clips/particle-theory-liquid-into-gas/2146.html

‘Freezer plan’ bid to save coral

http://news.bbc.co.uk/1/hi/sci/tech/8324954.stm

British Cryogenics Council

http://www.bcryo.org.uk/index.php1

Cryogenics Society of America

http://www.cryogenicsociety.org/