American Scientific, LLC · Columbus, Ohio · Exclusive U.S. Distributor of PHYWE Systems
American Scientific, LLC · Columbus, Ohio · Exclusive U.S. Distributor of PHYWE Systems
Day and night, the seasons, the Earth's orbit, and solar energy. 110V/60Hz adapted for U.S. labs.
How are day and night created? Day and night are "created" by the rotation of the earth around its own axis, with day on the side facing the sun and night on the side facing away from the sun.
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The earth performs two main rotational motions. On the one hand, it rotates around itself, and on the other hand, it orbits the sun. However, it does not follow a perfect gyroscopic motion.
A (human) life on earth would not be possible without solar radiation. Solar radiation provides heat and light on earth, but also the oxygen necessary for life.
How long do day and night last? Day and night "arise" from the rotation of the earth around its own axis, whereby the earth rotates around its own axis once every 24 hours.
Not only the earth moves in our solar system (around the sun), but also the moon. The moon rotates around the earth, whereby the moon takes different positions from the earth.
How do solar and lunar eclipses occur? The moon rotates around the earth. If the moon is at a "suitable distance" between the earth and the sun, it "blocks" the light rays from the sun.
The Earth's axis is perpendicular to the Earth's orbit, but slightly tilted (oblique). Since the axis is inclined, not all areas of the earth are "supplied" with the same amount of light and heat...
