Celebrate the ingenuity and imagination found in the world around us. 24/7 episodes of Modern Marvels, television's most innovative series.

Modern Marvels

Glass serves as one of the most versatile materials, sheathing skyscrapers, containing liquids, aiding vision, enabling high-speed communication, and providing artistic expression; heating certain rocks and minerals creates this transparent material.

Then and Now: Glass

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More than two million people die in the U.S. annually, creating 5,500 daily burials with 80 percent choosing caskets and 20 percent cremation; explore dealing with death throughout centuries and today's $20-billion funeral industry.

Cemeteries

Defensive fortifications span WWI bunkers to futuristic structures; explore submarine bunkers at Lorient housing 20 subs, Churchill's Cabinet War Room, Hitler's Berlin bunker, Cold War shelters, and nuclear weapon protection bunkers.

Bunkers

Half a mile below earth's surface, miners extract rough diamonds, pure carbon substances that become precious gems when cut and polished; explore diamond mining history and technology from 4th century BC to modern South Africa.

Diamond Mines

Dynamite explodes hills, drills divide stone walls, and giant cranes pull 400,000-pound blocks from quarry pits; rock serves as civilization's raw material for roads, buildings, paint, glue, makeup, antacids, and chewing gum.

Quarries

The U.S. Military Academy at West Point has trained students in warfare for nearly 200 years; located 50 miles north of New York City on 16,000 acres, it overlooks the Hudson River and evolved with America's expanding responsibilities.

West Point

Nuclear submarines carry more firepower than all bombs dropped in history; since the 1950s, these steel vessels became U.S. defense cornerstones, sparking Cold War underwater competition and creating engineering miracles for deterrence.

Nuclear Subs

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.

Cannons

Salute to tools and toys that stood the test of time from Zippo lighters to Palm Pilots; examine technology behind familiar gadgets including flashlights, transistor radios, safety razors, and metronomes that changed lives.

More Gadgets

Infantry soldiers known as "Tunnel Rats" searched for and destroyed secret subterranean enemy networks in Vietnam; armed with flashlights and pistols, these volunteers faced lethal odds and uncovered arms caches, with many casualties.

Tunnels of Vietnam

Examination of chemical and biological warfare history and technology traces back 4,000 years to ancient India's toxic fumes; includes details of Soviet biological programs and interviews with former scientists Ken Alibek and Bill Patrick.

Chemical and Biological Weapons

From colossal devices designed to save the world to mind-expanding, world-shrinking machines, tracing the evolution of mice and menus; learning about the world's most powerful computer that operates at 12-trillion calculations a second.

Computers

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S7 E29 | Cannons

E45 | Then and Now: Glass

E41 | Cemeteries

E40 | Bunkers

E35 | Diamond Mines

E33 | Quarries

E32 | West Point

E30 | Nuclear Subs

E29 | Cannons

E24 | More Gadgets

E20 | Tunnels of Vietnam

E17 | Chemical and Biological Weapons

E15 | Computers