Building this launcher is simple if you already have a mill ... The problem with a lot of these water bottle rocket projects is that they leak where the bottle meets the launcher.

Create your own butane bottle rocket for a thrilling experience ... ‘It makes an enormous difference’: Warren Buffett said simple calculation is the key to building a generous retirement ...

Practise and challenge your friends! Download the Water bottle Rockets PDF(378 Kb). Adobe Acrobat is required. SAFETY: This rocket uses air pressure to fling a bottle at high speed 20–50 metres.

Rafael Diaz Jr. was just trying to do his job as an oil-tanker driver last week, when a group of teens in an Atlanta neighborhood shot a bottle rocket at his cab. The pyrotechnic novelty hit him ...

Easy to follow films demonstrating how to do simple experiments using basic ... having fun with these experiments at home. • The bottle rocket challenge: faces from across the BBC compete ...