Modern Marvels
Salt is a versatile substance with 14,000 known uses; visiting a salt mine under Lake Erie.
2026-07-18 20:27:24 +0000 UTC→2026-07-18 21:19:06 +0000 UTC(51m)
Schedule for Modern Marvels
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Modern Marvels
Heavy metals like copper, uranium, and zinc are stored in National Defense Stockpile for America.
2026-07-20 06:40:37 +0000 UTC→2026-07-20 07:34:12 +0000 UTC(53m)
Modern Marvels
Technology transforms many aspects of police work.
2026-07-20 05:45:34 +0000 UTC→2026-07-20 06:40:37 +0000 UTC(55m)
Modern Marvels
Rats are some of the most dangerous, destructive and useful animals on the planet.
2026-07-20 04:53:02 +0000 UTC→2026-07-20 05:45:34 +0000 UTC(52m)
Modern Marvels
The FBI's $150 million Crime Lab at Quantico, Va.
2026-07-20 04:00:00 +0000 UTC→2026-07-20 04:53:02 +0000 UTC(53m)
Modern Marvels Essentials
From banishing waste to battling B-O, the modern bathroom is full of wonders.
2026-07-20 03:34:08 +0000 UTC→2026-07-20 04:00:00 +0000 UTC(25m)
Modern Marvels
The Pentagon, completed in 1943, is the world's largest office building and military nerve center.
2026-07-20 02:40:56 +0000 UTC→2026-07-20 03:34:08 +0000 UTC(53m)
Modern Marvels
Data lines; power; plumbing; photovoltaics; conserving energy.
2026-07-20 01:48:04 +0000 UTC→2026-07-20 02:40:56 +0000 UTC(52m)
Modern Marvels
Lighthouse history spans from ancient Alexandria to modern automation.
2026-07-20 00:53:26 +0000 UTC→2026-07-20 01:48:04 +0000 UTC(54m)
Modern Marvels
Skyscrapers; Empire State Building; Sears Tower; World Trade Center.
2026-07-19 23:59:31 +0000 UTC→2026-07-20 00:53:26 +0000 UTC(53m)
Modern Marvels
We learn about the human element and development of systems that make us comfortable.
2026-07-19 23:06:09 +0000 UTC→2026-07-19 23:59:31 +0000 UTC(53m)
Modern Marvels
A computer-managed home showcases the high-tech gadgetry destined to inhabit every future wall.
2026-07-19 22:15:25 +0000 UTC→2026-07-19 23:06:09 +0000 UTC(50m)
Modern Marvels
How the Aswan High Dam socially, politically, culturally, and agriculturally affected Egypt.
2026-07-19 21:20:32 +0000 UTC→2026-07-19 22:15:25 +0000 UTC(54m)
Modern Marvels
Booby traps from the ancient Egyptians, Chinese, Greek, and Romans to the Middle Eastern crisis.
2026-07-19 20:26:47 +0000 UTC→2026-07-19 21:20:32 +0000 UTC(53m)
Modern Marvels
Siege machines convert energy into mechanical force to breach barriers.
2026-07-19 19:34:19 +0000 UTC→2026-07-19 20:26:47 +0000 UTC(52m)
Modern Marvels
In 1947, young test-pilot Chuck Yeager becomes the first to smash through the sound barrier.
2026-07-19 18:41:05 +0000 UTC→2026-07-19 19:34:19 +0000 UTC(53m)
Modern Marvels
The world's first underground railway holds London together.
2026-07-19 17:46:32 +0000 UTC→2026-07-19 18:41:05 +0000 UTC(54m)
Modern Marvels
The art deco Chrysler Building stands out in the New York skyline.
2026-07-19 16:52:58 +0000 UTC→2026-07-19 17:46:32 +0000 UTC(53m)
Modern Marvels
Communists erect the wall to stop the flow of refugees to the West.
2026-07-19 16:00:00 +0000 UTC→2026-07-19 16:52:58 +0000 UTC(52m)
Modern Marvels Essentials
From banishing waste to battling B-O, the modern bathroom is full of wonders.
2026-07-19 15:34:08 +0000 UTC→2026-07-19 16:00:00 +0000 UTC(25m)
Modern Marvels
The Pentagon, completed in 1943, is the world's largest office building and military nerve center.
2026-07-19 14:40:56 +0000 UTC→2026-07-19 15:34:08 +0000 UTC(53m)
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