By: Jeremiah Akhirevbulu
Plankton are microscopic or macroscopic organisms of plant and animal origin found in the pelagic region of water bodies where sunlight penetration and nutrient availability are abundant. Plankton are defined based on the ecological niche they occupy rather than their phylogenetic or taxonomic classification. Plankton...
By: J. Lang Wood
The word plankton comes from the Greek word planktos, meaning “wanderers.” The name describes the ability of plankton to move on ocean currents. This motion is how plankton get from place to place where it can be used as a food source by...
By: Michael Totten
The majority of tornadoes in the United States stay on the ground for less than 5 miles. It is unusual for tornadoes to have a path of longer than 30 miles. Many of the longest tornado damage paths are caused by multiple tornadoes from a...
Should we start preparing for the end of the world?
By: Matthew Fulton
The "prepper" community is often considered strange by the rest of society. Why stock up on months and years of food, keep a large stock of weapons and ammunition, and be ready to live in very primitive ways when modern society is so well organized...
By: Keith Redfern
Radiation can be defined as a process whereby energy (or heat) is transferred by some sort of wave motion. Wave motion varies according to the length of the waves concerned. Thus, related to the title, solar radiation is short wave radiation, whereas terrestrial radiation, otherwise...
By: Keith Redfern
An air mass is a large body of air with a generally uniform temperature and moisture level. Such a mass can extend over 100 miles or more horizontally and have a height of between 9,000 and 16,000 kilometers (5600 - 10,000 miles)...
By: J. Lang Wood
Agates are easily-recognizable stones that show the complex layering of materials, called drusy, from which they are composed. Agates come in many different appearances, from the single eye of the Mexican agate to the delicate filaments of the moss agate that suggest vegetative material in...
What makes the color of the aurora borealis
By: Rex Trulove
The aurora borealis or northern lights awe most people who see them. In northern skies, they appear as flashes, ribbons or blankets of color that seem to undulate and ripple through the skies. The lights are also colorful, varying between green, various hues of blue...
By: Shanan King
The seemingly magical apparition in the sky of different kinds of rainbows has mesmerized many eyes over the millennia. In the Biblical story of Noah’s Ark, the rainbow was a sign from God that He would never again flood the earth destroying its inhabitants...
By: Jose Juan Gutierrez
Auroras (northern lights) are brilliant displays of light that appear in the Arctic and Antarctic regions of the world. Auroras are caused by the collision of charged particles coming from the Sun and atoms in the thermosphere. Auroras most often occur near the equinoxes (spring...

 

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