Modern Marvels
Salt is a versatile substance with 14,000 known uses; visiting a salt mine under Lake Erie.
2026-06-03 03:33:38 +0000 UTC→2026-06-03 04:00:00 +0000 UTC(26m)
Schedule for Modern Marvels
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Modern Marvels
How superhighways move millions of people every year; 20-lane project in Houston.
2026-06-05 14:19:01 +0000 UTC→2026-06-05 15:08:22 +0000 UTC(49m)
Modern Marvels
The military's new mission is to detect, deter, and defend America from terrorist attack.
2026-06-05 13:26:57 +0000 UTC→2026-06-05 14:19:01 +0000 UTC(52m)
Modern Marvels
The celebration of Halloween has become a $6 billion economic powerhouse.
2026-06-05 12:35:48 +0000 UTC→2026-06-05 13:26:57 +0000 UTC(51m)
Modern Marvels
During the 1960s and 1970s, auto-manufacturers compete to create high-performance cars.
2026-06-05 11:45:05 +0000 UTC→2026-06-05 12:35:48 +0000 UTC(50m)
Modern Marvels
America's aging infrastructure is in danger of collapse due to corrosion.
2026-06-05 10:54:57 +0000 UTC→2026-06-05 11:45:05 +0000 UTC(50m)
Modern Marvels
Trapping black bears with West Virginia Division of Natural Resources biologists.
2026-06-05 10:05:10 +0000 UTC→2026-06-05 10:54:57 +0000 UTC(49m)
Modern Marvels
The Nazis build shore fortifications along occupied European coastline.
2026-06-05 09:12:26 +0000 UTC→2026-06-05 10:05:10 +0000 UTC(52m)
Modern Marvels
NASA's space shuttle is the world's first reusable spaceship.
2026-06-05 08:19:01 +0000 UTC→2026-06-05 09:12:26 +0000 UTC(53m)
Modern Marvels
The Alaskan oil pipeline's technological triumph over mountains, tundra and subzero temperatures.
2026-06-05 07:25:58 +0000 UTC→2026-06-05 08:19:01 +0000 UTC(53m)
Modern Marvels
PONG; microprocessors; Texas Instruments; Mr. Coffee; the microwave oven; Polaroid.
2026-06-05 06:33:34 +0000 UTC→2026-06-05 07:25:58 +0000 UTC(52m)
Modern Marvels
Color TV; satellite broadcasting; transistor radios; the Ford Mustang.
2026-06-05 05:43:04 +0000 UTC→2026-06-05 06:33:34 +0000 UTC(50m)
Modern Marvels
Dragsters hit top speeds above 330 mph racing down straightaways.
2026-06-05 04:52:14 +0000 UTC→2026-06-05 05:43:04 +0000 UTC(50m)
Modern Marvels
The controversial logging industry topples 4 billion trees annually.
2026-06-05 04:00:00 +0000 UTC→2026-06-05 04:52:14 +0000 UTC(52m)
Modern Marvels
World War I is the first lethal combination of Industrial Age technology and war on a large scale.
2026-06-05 03:07:06 +0000 UTC→2026-06-05 04:00:00 +0000 UTC(52m)
Modern Marvels
Exploring the ocean floor using new technology and examining biological and geological discoveries.
2026-06-05 02:14:31 +0000 UTC→2026-06-05 03:07:06 +0000 UTC(52m)
Modern Marvels
The Arizona Cardinals' dome stadium and its movable lawn; Scotts Company.
2026-06-05 01:24:38 +0000 UTC→2026-06-05 02:14:31 +0000 UTC(49m)
Modern Marvels
People battle foul odors, from cesspools and rotting meat to landfills and bad breath.
2026-06-05 00:34:28 +0000 UTC→2026-06-05 01:24:38 +0000 UTC(50m)
Modern Marvels
Satellites and the Global Positioning System spark a revolution in cartography.
2026-06-04 23:40:37 +0000 UTC→2026-06-05 00:34:28 +0000 UTC(53m)
Modern Marvels
The CV-22 Osprey; the Boeing CH-47 Chinook helicopter; LMSRs.
2026-06-04 22:49:46 +0000 UTC→2026-06-04 23:40:37 +0000 UTC(50m)
Modern Marvels
Snow formation and management: cloud research, ski resort, avalanche rescue and forecasting.
2026-06-04 21:58:13 +0000 UTC→2026-06-04 22:49:46 +0000 UTC(51m)
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