Geography

Ancient Roman Engineering | Time Scanners: Colosseum

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Explore a modern-day Olympic stadium in Rome for clues to ancient Roman engineering techniques in this clip from Time Scanners. Using 3D laser scan technology, the team of archaeologists and structural engineers theorize about the purpose of the holes dotted around the Colosseum and the possiblity of a moveable awning system.

Global Economics: Is Ebola Fear Driving Up the Cost of Chocolate?

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Find out what effect Ebola has on global markets with this video and educational materials from PBS NewsHour from October 28, 2014.

Desert Razors ATVs | Outdoor Nevada

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In this episode host John Burke takes a high-speed tour on an ATV.  

Engineering the Pyramids | Time Scanners: Egypt

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Explore deep inside an ancient pyramid to learn how the Egyptians were able to create a hollow space for a Pharaoh's tomb in this clip from Time Scanners. Using laser scan technology the team learns how the Egyptians could create a vast open volume of space inside such an enormous structure.

Egypt's Treasure Guardians | Chapters

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Learn about Egypt's "treasure guardians," a group of archaeologists, conservators, and engineers working to guard national heritage, following years of political upheaval, by building a museum. To preserve its rich history and to tempt visitors back, Egypt is building the Grand Egyptian Museum (GEM) - the greatest Egyptian monument since the pyramids! Archaeologists across the country are opening new dig sites to find artifacts for display, with the hope that teaching the public about important historical areas will keep those places protected in the future.

Ancient Burial Site | Time Scanners: Egypt

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Travel deep beneath a partially collapsed Egyptian pyramid in this clip from Time Scanners. Using laser scan technology, the team discovers how the ancient Egyptians tried to build four sheer walls on the faces of each side of the pyramid to support the enormous weight of the stones. By using a method of corbelling, the ancient Egyptians were able to build a burial chamber within the body of the pyramid.

5,000 Refugees Stranded in Bay of Bengal

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Hear about the challenges facing refugees from Myanmar with this video and educational resources from PBS NewsHour from May 15, 2015.

Lesson 8: J. Sterling Morton

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Today, J. Sterling Morton is best known as the co-founder of Arbor Day. Living in Nebraska City, Morton carefully watched the growth of the Nebraska Territory through all its ups and downs. He did not believe Nebraska was a Great American Desert, but quite the opposite. He believed in Nebraska's agriculture, and the honorable work of farmers. It was estimated that more than one million trees were planted in Nebraska on the first Arbor Day.

Ancient Irrigation at Herodium | Time Scanners: Jerusalem: Chapter 4

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Travel deep beneath the ancient site of Herodium, Israel in this segment from Time Scanners. See how the residents of the palace would have accessed water on top of a man-made mountain in the middle of a sprawling desert. Laser scan technology shows how massive cisterns hewn out of solid rock were positioned inside the mountain.

Cavemen to Kings: Full Episode | The Greeks

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Learn about the dawning of the first great European civilization: the ancient Greeks. Learn about the dawn of the Stone Age and powerful myths the Greeks used to explain their place in the world. Then follow along to learn about the ancient Greek seafarers of the Bronze Age, the Minoans and Mycenae who lived on Crete and beyond. Finally, discover their downfall, as the first age of the Greeks descended into darkness.

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