Rocket science, explained with soda bottles

Fuel and oxidizer. Together they make propellant, which can be used to launch a rocket – but for the best results, you need to find the right ratio. Too much of one or the other, and your exhaust velocity begins to drop. Less exhaust velocity means less thrust — and less thrust means you will not go to space today. » 4/11/13 4:20pm 4/11/13 4:20pm

Bubbles popping at 18,000 fps is every bit as mesmerizing as it sounds

This is the slowest video YouTube's "Slow-Mo Guys" have ever done. That, in and of itself, is saying something. That it happens to be a video of bubbles popping just turns the whole viewing experience up to 11. Don't get us wrong, bursting bubbles has always been fun — but doing it turned down thousands of times… » 2/25/13 2:40pm 2/25/13 2:40pm