National Geographic
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National Geographic TV Shows, Specials & Documentaries
Watch full episodes, specials and documentaries with National Geographic TV channel online.
What are the Pyramids of Giza—and who built them? - National …
2023年12月20日 · The third of the Giza Pyramids is considerably smaller than the first two—less than half their height at about 218 feet. Built by Khafre’s son Menkaure circa 2490 B.C. the pyramid’s ...
Here’s what to know about Day of the Dead - National Geographic
Day of the Dead is a social holiday that spills into streets and public squares at all hours. People of all ages have their faces artfully painted to resemble skulls, donning fancy suits and gowns ...
Greenhouse gases, facts and information - National Geographic
2019年5月13日 · Greenhouse gases have far-ranging environmental and health effects. They cause climate change by trapping heat, and they also contribute to respiratory disease from smog and air pollution. Extreme ...
What Causes Hurricanes—Hurricane Facts - National Geographic
2016年10月6日 · One just happens to be caused by earthquakes (tsunamis), while the other is generated by hurricanes. Flash flooding caused by intense rains is also a major killer, Emanuel said. “ Hurricane ...
Planet Mercury, explained - National Geographic
2018年10月19日 · Living up to its name, Mercury is the fastest planet in the solar system, speeding along at about 29 miles per second and completing each orbit around the sun in just 88 Earth days. Mercury is ...
Renewable energy, facts and information - National Geographic
2019年1月30日 · Hydropower: For centuries, people have harnessed the energy of river currents, using dams to control water flow. Hydropower is the world's biggest source of renewable energy by far, with China ...
The solar system—facts and information - National Geographic
2019年3月27日 · Known as natural satellites, they orbit planets, dwarf planets, asteroids, and other debris. Among the planets, moons are more common in the outer reaches of the solar system. Mercury and Venus ...
Colonialism facts and information - National Geographic
2024年8月16日 · Colonialism is defined as “control by one power over a dependent area or people.”. It occurs when one nation subjugates another, conquering its population and exploiting it, often while ...