On 29 March 2008 Lisa and I again helped out at the Science Olympics Bottle Rocket Contest.

In this contest students must construct a rocket based on a softdrink/soda bottle. The bottles are “launched” by partially filling them with water, and then adding compressed air which will force the water out of the bottle, propelling it upwards. The winner of the contest is the rocket that stays aloft the longest and doesn’t separate into parts at any time before touching down. Continue reading »