Watch the Re-Inventors test a torpedo designed 500 years before the first self-propelled missile was even conceived.
This invention was designed to run on waterpower instead of muscle, but testing it will take all of their strength.
See what happens when the Re-Inventors attempt to get an ancient troop transport wagon into fighting shape.
By the 1930s, more cars hit the road... and more pedestrians got hit by them. Our hosts put one old solution to the test.
Our hosts test how this Soviet winter troop transport vehicle would survive against Russian weather and artillery fire.
Is this 1940s iceboat winter-ready or skating on thin ice? The Re-Inventors bundle up to find out.
It looks like a doghouse resting on a wet suit, but this 1916 invention could have saved countless lives lost at sea.