Salt is a versatile substance with 14,000 known uses visiting a salt mine under Lake Erie an evaporation facility harvests ocean salt near San Francisco a Florida restaurant offers 40 varieties of salt.
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A countdown of the top gizmos and gadgets featured on "Modern Marvels," from golden oldies to newfangled thingamabobs, including an electronic doodad that was once considered a threat to national security.
Cannons evolved from 13th-century fort-penetrating weapons to atomic bomb launchers with smart weapons explore how cannons were cast and forged, terrorized in world wars, and advanced to today's 40-ton self-propelled Crusader.
With technological advances, our ancient struggle against the sea has turned into a luxurious holiday a peek at the elegant life on these floating resorts.
From giant machine presses stamping car bodies to 125-ton chainsaws cutting hardest rock, huge telescopes glimpsing universe ends to world's largest rock crushers explore massive machines including Keck Observatory atop Mauna Kea in Hawaii.
For over a century, the U.S. steel industry is a powerful symbol of the nation's industrial might steel transforms a country of farmers and merchants into a nation of builders, then U.S. domination of the market meets new challenges in the 1970s.
Salt is a versatile substance with 14,000 known uses visiting a salt mine under Lake Erie an evaporation facility harvests ocean salt near San Francisco a Florida restaurant offers 40 varieties of salt.
The U.S. Navy's most lethal fighter, the F-14, soars at supersonic speeds.
Freight trains transport 1.8 billion tons annually as America's economic lifeblood, carrying crops, electronics, cars, chemicals, and coal explore Union Pacific's Bailey yard, the world's greatest freight system, from mining tramway origins.
A countdown of the top gizmos and gadgets featured on "Modern Marvels," from golden oldies to newfangled thingamabobs, including an electronic doodad that was once considered a threat to national security.
Cannons evolved from 13th-century fort-penetrating weapons to atomic bomb launchers with smart weapons explore how cannons were cast and forged, terrorized in world wars, and advanced to today's 40-ton self-propelled Crusader.
With technological advances, our ancient struggle against the sea has turned into a luxurious holiday a peek at the elegant life on these floating resorts.
From giant machine presses stamping car bodies to 125-ton chainsaws cutting hardest rock, huge telescopes glimpsing universe ends to world's largest rock crushers explore massive machines including Keck Observatory atop Mauna Kea in Hawaii.
For over a century, the U.S. steel industry is a powerful symbol of the nation's industrial might steel transforms a country of farmers and merchants into a nation of builders, then U.S. domination of the market meets new challenges in the 1970s.
Salt is a versatile substance with 14,000 known uses visiting a salt mine under Lake Erie an evaporation facility harvests ocean salt near San Francisco a Florida restaurant offers 40 varieties of salt.
The U.S. Navy's most lethal fighter, the F-14, soars at supersonic speeds.
Freight trains transport 1.8 billion tons annually as America's economic lifeblood, carrying crops, electronics, cars, chemicals, and coal explore Union Pacific's Bailey yard, the world's greatest freight system, from mining tramway origins.
Examines what happens when engineers get their calculations wrong.
A visit to a rolling mill where aluminum skins for jets are made aluminum is used to make reflective mirrors for telescopes at NASA the process of making aluminum foil why aluminum baseball bats are better than wood.
The Koenigsegg CCR automobile the Shanghai Maglev train motorboat racer Ken Warby and the Spirit of Australia the Kingda Ka roller coaster the Holloman High Speed Test Track.
Examine mysterious maritime tragedies including Edmund Fitzgerald's 1975 sinking, Boeing 737 rudder crashes in 1991 and 1994, secret 1959 government nuclear facility meltdown, 4-million gallon diesel storage tank failure, and more.
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