A ride through the mountains and canyons with the mammoths proves chaotic for the Islanders when they experience the effects of sound reverberation. Brenda’s echoes startle the mammoths who run in every which way. Nevertheless, Brenda and co. make the most of their lesson and use the principles of SOUND to return the hairy beasts back to safety.

Gregg Wallace joins a human production line in the largest sports shoe factory in the UK to see how they produce three-and-a-half thousand pairs of trainers every 24 hours by sewing 32 million individual stiches and using 140 miles of thread. Meanwhile, Cherry Healey gets hands on in a tannery to help them process thousands of rawhides into finished leather for the nation's shoes, and finds out how a ballet shoe company painstakingly turns 37,000...

Follow our expert, high-profile panel of judges as they pick, rank and comment on THE GREATEST EVER‘s top ten tanks of all time; the ones that take you to the edge of armored experience and push the metal to the limit. Our team puts their picks through the paces, testing out their claims: we race a tank with a Volvo over 400 meters of rugged winter terrain and let a rock star take one out for a muddy ride. Our well-known, eclectic panel then debates,...

For two years, we have followed the construction of the new California Department of Transportation headquarters in LA to learn the architectural, structural, and mechanical challenges of building mega-skyscrapers.

In this episode of Scientific American Frontiers, Alan Alda visits the research labs and testing tracks of the Big Three auto makers to find out what people will be driving 10-20 years from now. Fuel efficiency and alternative fuels are the future, and Alda test-drives a gasoline-electric hybrid that's already on the road, as well as several hydrogen-fueled cars still in development. The search for a quiet, fast, safe, exciting and non-polluting fuel-cell...

By the year 2050, cops and robbers won’t look anything like it did in the past. Host Joe Penna talks to designers who’ve created a robotic security guard. He’ll work with a Harvard scientist who has developed a softball sized set of eyes and ears that allow crime fighters to see danger long before it can hurt them. And polygraphs could become a thing of the past if we can scan brain waves to see if people are telling the truth, or not.

Some of the most innovative and mindboggling cars are not on the streets--they are helping the military pound the pavement and cross terrain around the world.

At 4:30 p.m. on October 10, 1957 a fire was discovered inside Britain's first nuclear reactor at Windscale. This dramatic reconstruction tells the extraordinary story of how the fire was eventually put out, and unravels the causes behind it. The medical and scientific legacies are still being felt to this day, with the UK Atomic Energy Authority admitting that as many as people may have been fatally affected by the ensuing contamination. Filmed in...

This video explores the science, technology, and sheer nerve that goes into preparations for the Volvo Ocean Race, regarded as the "Everest of Yacht Racing." It looks at the space age technology, Formula One design techniques, and revolutionary clothing required to send a 60 foot long yacht 32,000 miles around the world at breakneck speed. Around the world, yachtswoman Tracy Edwards helps demystify the science, technology, and excitement that drives...

In this edition of Make, Create, Innovate, we explore an area close to all our hearts or rather our stomachs; food and how technology is changing what and how we eat. We first explore how technology can help with the growing problem of food security and sustainability with an inventor who has developed an innovative approach to help stabilize fish stocks. His nets contain special portals that attract undesirable fish and those from endangered lists...