Jörg & Cheyenne are challenged to create a Machine Gun Crossbow. They need to build a chassis, a magazine and an automatic firing and reloading mechanism. Can they build a fully automatic crossbow? And will it beat a team of crack crossbow shooters?
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Ultimate Explosions chronicles the compelling stories of explosions that have reverberated around the world.
Former NASA consultant Don Shaw has a unique set of patents on a space vehicle and several on advanced aircraft vehicles that can drive, fly and hover.
Dennis Hong is the director of Robotics Mechanics Laboratory at UCLA and has invented numerous new robots earning the nickname the Leonardo da Vinci of Robots.
Jean Yves Blondeau is the inventor of the 32-wheel roller suit, the wearer who can ride downhill in a variety of positions at speeds of up to 112 km/h.
Rockets, 100 pounds os explosives, and a "wheel of fiery death". For the Re-Inventors it's just another day, another danger.
Can Matt and Jeremy get this bizarre one-wheeled bike in gear, or will hey need to put the brakes on the whole thing?
Da Vinci, an artist who also made a machine gun. We will see if it was usable or not.
Earthrise assesses the depth of the crisis facing the world's grasslands today, and explores some of the solutions that are being used to preserve them.
Earthrise sets off on a month-long journey around Antarctica to study the effects of climate change on the continent.
As the US no longer stands to be a global climate leader, China takes the mantle.
Solar sails, the latest in space travel technology, could one day help us reach nearby stars. Follow the exciting missions laying the ground towards a new form of space exploration.
Kelp forests harbor a higher diversity of plants and animals than almost any other ocean community. But, what happens when this ecosystem is out of balance?
Increasingly high-tech tools are being used to evaluate youth baseball players. The question is can they outperform professional scouts?
Host Steve Spangler presents amazing science stunts that your friends will not believe – but they're real! – from pre-sliced bananas to the way to crush raw eggs without turning them to mushy egg soup.
A virtual scalpel dissects methane lakes and icy crusts to reveal hidden oceans and water-erupting volcanoes on distant moons.
Rockets, 100 pounds os explosives, and a "wheel of fiery death". For the Re-Inventors it's just another day, another danger.
Can Matt and Jeremy get this bizarre one-wheeled bike in gear, or will hey need to put the brakes on the whole thing?
Da Vinci, an artist who also made a machine gun. We will see if it was usable or not.
Earthrise assesses the depth of the crisis facing the world's grasslands today, and explores some of the solutions that are being used to preserve them.
Earthrise sets off on a month-long journey around Antarctica to study the effects of climate change on the continent.
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