Anything that isn't a man-made event is a natural phenomenon. Hurricanes, earthquakes, the aurora borealis, volcanic eruptions, floods, avalanches, meteor collisions, lightning strikes and the tidal forces caused by the moon are all natural phenomena. Biological processes and astrophysical occurrences fall under nature's purview.Know More
Earthquakes happen because the Earth is composed of tectonic plates connected by fault lines. When the stresses between these plates grows too large and one of them slips, shockwaves are sent throughout the land and any nearby bodies of water.
Hurricanes form over the ocean when a low pressure area is powered by the heat of condensation. This heat results from water vapor rising up to form clouds, which liberates energy. If there isn't an outlet for the build-up of energy via wind shear, the winds build up. A tropical storm forms when winds are 74 miles per hour or higher.
The aurora borealis results when energetic electrons from the solar wind interact with molecules and atoms in our atmosphere. Earth's magnetic field captures part of the solar wind, and the display of lights comes from the many collisions between the particles. This natural phenomenon usually occurs in regions where the magnetic field poles define aurora ovals.Learn more about Weather & Tides
The sun illuminates the other side of the planet at night since it has a relatively fixed position in relation to the Earth. The Earth revolves around its axis in a tilted position and around the sun, creating the summer, winter, night and day effects.Full Answer >
According to Reference.com, the name of a wind is based on the compass direction from which it blows. For instance, a wind that blows from the north is known as a "north wind." Wind direction is indicated by weather vanes, lightweight, flat pieces of material mounted so they freely rotate in a horizontal plane.Full Answer >
A barometer is a device used for measuring atmospheric pressure, also known as barometric pressure or air pressure. A mercury barometer does this by balancing the weight of mercury contained in a glass tube against the weight of the air in the surrounding atmosphere.Full Answer >
Yung Chung-hoi of the Hong Kong Observatory explains that the sun is overhead at the equator and at a slant angle at the poles, which is why it is very hot near the equator. The other factors that influence the amount of sunshine received at different places on Earth are absorption and scattering of sunshine when passing through the atmosphere, and reflection by the surface of the Earth.Full Answer >