01 Steel Drum Implosion:
Information on Air Pressure

02 Hydrogen Alhambra Rocket:
Scitoys Hydrogen Fountain
How to Electrolyze Hydrogen
Hydrogen Water Rocket Theory and Videos

03 Giant Sonotube Resonance:
The Physics of Open Ended Tubes
The Ideal Acoustic Tube

04 Steel Drum Inflation:
Information on Air Pressure
Dry Ice (solid CO2)
05 Silent Gunpowder Explosion:
Gunpowder is Dangerous
06 Simple Hovercraft Surfing:
Hovercraft Instructions
A More Complex Hovercraft