Rainbow - Education | National Geographic Society
2023年10月19日 · Rainbows in Myth. Rainbows are part of the myths of many cultures around the world. Rainbows are often portrayed as bridges between people and supernatural beings. In Norse mythology, for instance, a rainbow called the …
Rainbows are usually positive symbols in myths and legends. In the Epic of Gilgamesh and, later, the Bible, the rainbow is a symbol from a deity (the goddess Ishtar and the Hebrew God) to never again destroy the Earth with floods.
Aurora - Education | National Geographic Society
2023年10月19日 · An aurora is a natural light display that shimmers in the sky. Blue, red, yellow, green, and orange lights shift gently and change shape like softly blowing curtains. Auroras are only visible at night, and usually only appear in lower polar regions. Auroras are visible almost every night near the Arctic and Antarctic Circles, which are about 66.5 degrees north and …
Rainbow Serpent - National Geographic Society
2023年10月19日 · Some ancient people of Australia believe a "rainbow serpent" slithered from the water to create the world. Could this fascinating myth be based on fact? Join Wild Chronicles on a quest to find the truth about Australia's amazing snakes and legends.
Rain - Education | National Geographic Society
2023年10月19日 · Rain is liquid precipitation: water falling from the sky. Raindrops fall to Earth when clouds become saturated, or filled, with water droplets.Millions of water droplets bump into each other as they gather in a cloud. When a small water droplet bumps into a bigger one, it condenses, or combines, with the larger one.As this continues to happen, the droplet gets …
Visible Light - Education
2023年10月19日 · Waves of electromagnetic energy traveling across the globe and throughout space make life on Earth possible. Activities like reading a computer screen, calling someone on a cell phone, heating up hot chocolate in a microwave, or using a GPS device would be impossible without electromagnetic energy.
TIL: How Chameleons Change Color - Education
2023年10月19日 · New research suggests that the way chameleons change color is very different from what scientists had assumed. Join filmmaker and National Geographic Explorer Jason Jaacks as he explains how the color change is actually controlled by nanocrystals in a top layer of the lizards' skin.
The Coriolis Effect: Earth's Rotation and Its Effect on Weather
2023年10月19日 · The Coriolis effect describes the pattern of deflection taken by objects not firmly connected to the ground as they travel long distances around Earth. The Coriolis effect is responsible for many large-scale weather patterns.. The key to the Coriolis effect lies in Earth’s rotation.Specifically, Earth rotates faster at the Equator than it does at the poles.
The Science of Sunsets – National Geographic Education Blog
2013年10月28日 · SCIENCE 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. (National Geographic News) Use our resources to better understand the science of sunsets.…
Hydroelectric Energy - Education
2023年10月19日 · Hydroelectric energy, also called hydroelectric power or hydroelectricity, is a form of energy that harnesses the power of water in motion—such as water flowing over a waterfall—to generate electricity. People have used this force for millennia. Over 2,000 years ago, people in Greece used flowing water to turn the wheel of their mill to ground wheat into flour.