When a series of delicate snowflake shaped sheets of Aramid are pressed together, they'll form a piece of headgear that's comfortable enough to wear to war, and tough enough to take a bullet.
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Chris and Casey Keefer recount their most memorable moments from this year's journey to Alaska's Brooks Range
Chris and Cade face the Alaskan wilderness with unexpected challenges and newfound camaraderie
Chris and Cade battle nature's challenges in search of sustenance and survival in Alaska
A relentless Alaskan storm tests the endurance and spirit of stranded adventurers.
Chris and Cade face unexpected challenges as they hunt for survival in the Alaskan wilderness
Survival and trust are tested as hunters confront Alaska's wilderness and their own limits
The crew braves treacherous terrain and unpredictable weather to capture the perfect shot
Navigating the wilds of Alaska, the brothers face grizzlies and hunt for survival.
Floodwaters trap Chris and Casey in Alaska, forcing them into a perilous journey downstream
In 48 hours, a block of metal will be formed into the most accurate weapon on earth: the AX-338 Sniper Rifle.
When a steel plated hull is fitted with controls on the inside and tracks on the outside, it'll become the Viking BVS10 –an armoured amphibious personnel carrier that can get troops in and out of any combat zone.
When a series of delicate snowflake shaped sheets of Aramid are pressed together, they'll form a piece of headgear that's comfortable enough to wear to war, and tough enough to take a bullet.
Ballistic steel plates are cut, shaped, and welded together to make the body of an armed and armoured personnel carrier that's built to be fast and flexible - the CV90
A battle tank is only as effective as its gun, and for the Stryker vehicle, that's the M68 105mm cannon
In World War 1, the original grenade launchers were the infantrymen themselves
14 year-old motor-cross rider, Kacee gets the wobbles and cartwheels over the top of his handle bars
Schoolteacher Ian heads off into the Tasmanian wilderness on an overnight adventure
71 year-old retired Nurse Sandra was exploring Tasmania's Cradle Mountain when she slipped and fractured her wrist
Mountain bike fanatic, Blake was out riding when he clipped a tree and crashed into a rock
Pedro and his friends have travelled all the way from Spain to walk Tasmania's famous Overland Track, but there's a big problem
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