Rainbow - National Geographic Society
2023年10月19日 · The most familiar type rainbow is produced when sunlightstrikes raindropsin front of a viewer at a precise angle (42 degrees). Rainbows can also be viewed around fog, sea spray, or waterfalls. A rainbow is an optical illusion—it does not …
How Science is Helping Us Understand Gender - Education
2024年6月4日 · Gender is an amalgamation of several elements: chromosomes (those X’s and Y’s), anatomy (internal sex organs and external genitals), hormones (relative levels of testosterone and estrogen), psychology (self-defined gender identity), and culture (socially defined gender behaviors).
Aurora - Education | National Geographic Society
2023年10月19日 · Auroras are visible almost every night near the Arctic and Antarctic Circles, which are about 66.5 degrees north and south of the Equator. In the north, the display is called aurora borealis, or northern lights. In the south, it is called aurora australis, or southern lights. Auroras and the Solar Wind.
The Science of Sunsets – National Geographic Education Blog
2013年10月28日 · The Science of Sunsets. Scarlet skies inspire many viewers to grab their cameras, and prompt a question: Why are some sunsets so spectacular, and others a mere muddle? Stephen Corfidi, a meteorologist who’s written about the science of colorful sunsets, helps us see the light.
Rain - Education | National Geographic Society
2023年10月19日 · Raindrops measure 0.5 millimeter (.02 inches) in diameter or larger. Drizzle, which is smaller than rain, consists of drops smaller than 0.5 millimeter. Most of Earth's precipitation falls as rain. Raindrops often begin as snowflakes, but melt as …
Rainbow Serpent - National Geographic Society
2023年10月19日 · Join Wild Chronicles on a quest to find the truth about Australia's amazing snakes and legends. very old. legend or traditional story. reptile with scales and no limbs. 1. The herpetologists, Bruce and John, search for snakes whose ancestors may have inspired the myth of the rainbow serpent.
The Coriolis Effect: Earth's Rotation and Its Effect on Weather
2023年10月19日 · The key to the Coriolis effect lies in Earth’s rotation. Specifically, Earth rotates faster at the Equator than it does at the poles. Earth is wider at the Equator, so to make a rotation in one 24-hour period, equatorial regions race nearly 1,600 kilometers (1,000 miles) per hour.
Education | National Geographic Society
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Visible Light - Education
2023年10月19日 · Visible light waves are the only wavelengths of the electromagnetic spectrum that humans can see. The different wavelengths of visible light are seen as the colors of the rainbow: red, orange, yellow, green, blue, indigo, and violet.
Ocean Currents and Climate - Education
2024年1月2日 · Climate change leading to increases in ocean temperatures, evaporation of seawater, and glacial and sea ice melting could create an influx of warm freshwater onto the ocean surface. This would further block the formation of sea ice and disrupt the sinking of denser cold, salty water.