Leonardo Da Vinci Automovile (1495)

Highest BMX Ramp Jump

DIY Super flashlight modification

While it is true that this flashlight is brighter, the batteries are expensive and the bulb probably lasts less than 10 hours. What they are doing is putting a lot more voltage into the bulb than it expects, and that: a) makes the bulb brighter but b) shortens its life by overheating it.

Theo Jansen's mechanical sculptures

Ancient salt mining

3D printer (rapid prototyping)

Marble adding machine

The human genome project

Quick introduction to kiteboarding

How to use a kite to surf:

Quick introduction to kiteboarding

How to launch a kite:

Robo building machine

Disposable chopsticks

Part 2:

Toothpick bridges

The rules: "The bridge must be built only of round wooden toothpicks and glue for woodwork. Total mass of the bridge cannot exceed 100 grams. The bridge must span a 500mm gap of the loading platform."

This one holds over 500 pounds:



Here's an article on building bridges like this: Toothpick Bridge Building Contests. And another: The Toothpick Bridge

Here is another, simpler one for a high school class:

Big Cats

Where heart attacks come from

Kinetic Horse Sculpture

"Study for a solar powered kinetic sculpture inspired partly by the work of Theo Jansen. Apart from the motor drive and crank shaft the machine is constructed entirely from paper."

NASA's TeTWalker Robot Prototype

NASA's Europa lander

Longest wall of fire

Most People Crammed Into A Smart Car

Building falls over in India

BIG IDEAS FOR A SMALL PLANET: Paper or Plastic

Something completely different

Marble machines

Kid does awesome sandrail wheelie at Glamis Dunes

Beanbots and junkbots

Scenes from Africa

World's largest vending machine

Copterbox air drop system

Clothes changing magic trick

The rabbit and the snake