The MythBusters test if a large icicle falling from a two-story building can pierce the roof of a car.

At Jimmy’s Junk, inventors are looking for parts to complete what appears to be a jet-propelled merry-go-round. Later, shop regular Hale Storm tries to sell Jimmy an African Birthing Chair and a gigantic piece that could take the yard to new heights.

At Jimmy's Junk, an inventor needs Jimmy to hunt down a replacement engine for his surf cycle prototype. Then, two students hope Jimmy can give their solar-powered tank the firepower it needs to win a creators competition for a prize of $10,000.

At Jimmy’s Junk, things heat up when inventors need help creating a flame cannon and Hale reveals his own balls of fire. And when a team of lawn mower racers need a replacement transmission it’s up to Billy to turn a piece of trash into a trophy win.

At Jimmy’s Junk, inventors need help turning a fridge into a beer launcher, and Hale lands himself in hot water. Later a high school class’s hopes may go crashing into a watery grave when they ask Jimmy to come up with an engine for their hovercraft.

At Jimmy’s Junk, it’s all hands on deck to create a huge new sign for the yard, but when things are just about finished a team member really drops the ball. Later, emotions explode when the guys prank Hale, and Jimmy has a near-death experience.

At Jimmy’s Junk, a team of Punkin Chunkers need Jimmy’s help to take their homemade trebuchet to the next level, and yard regular Hale has found something that he thinks will blow Jimmy away. Then the guys get creative in recycling an old treadmill.

It isn’t possible to walk on water. But can you drive on water? We watch a quad bike and a jeep as they attempt to harness the science of ‘hydroplaning’ in achieving this seemingly impossible feat.

Bullet proof glass can stop a round from a high-powered rifle, but can it stop a determined bank robber armed with an axe?

Can man fly? Base jumpers try to find out by using so-called Wing Suits. But do they end up flying or falling? Can a man fly better than a paper aeroplane, a glider, or the Space Shuttle?

How could a kayaker possibly survive plummeting down a 200 foot waterfall? We'll explain how there’s something special about water in a waterfall that spells the difference between life and death.

Is it possible for a skier to outrun an avalanche? What about a skidoo? What are the physical properties of an avalanche that make it so fast?

How do you put out a factory fire? Should you hose it down with water? The answer: Not always. What if the factory contains vast quantities of titanium? And what if the firefighters don’t know that? We discover the dramatic repercussions.

The counterintuitive physics of the Tarzan rope swing. Do the people in the clips know it well enough to make the jump?

A cross between ramp jump & wall of death; popular with cyclists & longboarders. It's tricky science. But who gets it right, and who doesn’t?

A BASE jump goes wrong after the jumper’s parachute fails to open as he plunges from the top of a pylon into the snowy ground below. Does he survive? We'll explore the world of terminal velocity with other amazing footage.