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Timeblazers Jen and Sam travel back 63 million years before the first primitive people appeared on Earth, and they learn that people and dinosaurs never met. They jump to the Paleolithic age, when humans first appeared, to see some "cavemen," as they are often called. About 8000 BCE the first primitive civilizations began to develop after humans started farming. Then to 3100 BCE: The Egyptians. Around 750 BCE came the ancient Greek civilization; then from about 27 BCE to 476 CE came the Roman Empire. Then came the Middle Ages from 500 to about the year 1400, the Renaissance.
(Source: DCMP)
It's Tulsa, Oklahoma at the start of the oil boom and Cherokee Lansing's rancher father is killed in a fight with the Tanner Oil Company. Cherokee sets out to save her father's oil empire and becomes obsessed with wealth and power. Originally released as a theatrical production.
Geothermal energy is one of the oldest renewable resources used by humans. It has been used since the ancient Roman times as a heat source. Recently, it has been harnessed and used as a source of power. Explains a few different ways that geothermal power plants operate. Discusses how experts are working to fine-tune the process and make the power plants more affordable and useful across the country.
As shown on the History Channel. The Grand Canyon is nearly 300 miles long and over a mile deep. You could stack four Empire State buildings one on top of the other, and they still wouldn't reach the lip of the Canyon. As vast tectonic plates clash and grind against one another a giant plateau has been pushed up over a mile in the air. The Colorado River, flowing from high in the Rockies and carrying a thick load of sediment, has carved the canyon in the rising plateau.
Pompeii, Italy, resort city for wealthy Romans, was buried under volcanic ash and debris for 1500 years when Mt. Vesuvius erupted in 79 AD. Reenactments and scenes from the excavated city blend into an abbreviated account of what happened that day. Narrated by Leonard Nimoy.
As shown on the History Channel. Mount Vesuvius is the world's most dangerous volcano, and it threatens three million people. It was responsible for the most famous natural disaster of ancient history, the eruption that destroyed the Roman city of Pompeii. And its most recent blast was caught on film in 1944. Today Vesuvius is the most densely populated volcano in the world. Now recent scientific discoveries show that it is capable of an eruption larger than ever before thought possible and that hidden beneath Vesuvius there is a vast magma chamber of boiling hot rock, ready to come out.
Using mud, clay, and tons of stone, ancient civilizations built buildings and monuments that are still standing today. The Egyptians built the Great Pyramid with an accurate measuring system, the ability to calculate areas and volumes of triangles, and a tremendous workforce that transported 1,000 tons of stone each day for 15 years. Other civilizations, such as the Romans, created marvels of engineering like the dome of the Pantheon, and built clean cities that included conveniences such as water management and sewers.
Features both male and female students discussing how hormones trigger the new social and emotional changes experienced during puberty. Covers self-esteem, body image, conflicts with parents, desire for independence, development of romantic feelings, bullying, and the need to treat each other with respect.
Great weather, abundant harvests, fabulous food, some of the world's most cosmopolitan and romantic cities are all attributes associated with Mediterranean climates. However, these regions are also critical biodiversity hotspots. This episode offers an overview of the world's Mediterranean-climate zones, pointing out their similarities, unique characteristics and importance, while also illuminating the factors that threaten them. Part of the "Mediterranean-Climate Ecosystems" series.
Remixed from Customizable Atom Delux by roman_hegglin. Helium is a chemical element with symbol He and atomic number 2. It is a colorless, odorless, tasteless, non-toxic, inert, monatomic gas, the first in the noble gas group in the periodic table. Its boiling point is the lowest among all the elements.
(Source: OpenStax)
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