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The knot is the term for speed used by the aviation and shipping industries. Sometimes abbreviated as KTS, the knot is measured in nautical miles per hour, and should not be confused with speeds given in miles per hour. The…
Biomes are biological communities of the earth classified according to the predominant vegetation and characterized by adaptations of organisms to that particular environment. Freshwater biomes are characterized by the extremely low salt content of the water. Abiotic factors are the…
A chemical reaction isn’t always visible to the human eye, but sometimes it results in an impressive color change and makes science experiments more fun to witness. When two or more substances combine, they create one or more new substances,…
Participating in science fair projects is a good way to learn the process of scientific inquiry. By doing such projects, children acquire the skills of discipline, observation and documentation that are critical to experimentation. Science projects on fish are interesting…
With its elegant form and pendulous branches, the weeping willow (Salix spp.) is a beautiful, calming tree. However, weeping willows are not suitable as backyard trees unless you have a lot of space to accommodate them. The tree itself can…
Hamsters are a type of rodent in the subfamily Cricetinae (family Cricetidae). There are multiple different species of hamsters. The golden hamster, Mesocricetus auratus, is the most common pet species. Many people have fond memories of their hamster pet and…
Unless you’ve installed software that changes the way your operating system works, your computer tracks time using a solar calendar. This calendar is based on the sun’s movement, and it’s the one with which people are most familiar. It differs…
A cylinder is a three-dimensional object that has two identical circular ends with straight parallel sides, like a can of beans or a hot water tank. If you are using a cylindrical object for storage of a product, you can…
The giant panda is an interesting and beautiful creature. The panda has a striking coat and mild temperament that sometimes translates as lazy. Pandas are an endangered species due to poaching and loss of habitat. Many conservationist organizations are working…
The arctan function represent the inverse of the tangent function. If the tangent of a number is a second number, the arctan of the second number is the first number. The function is useful when solving trigonometric problems. If you…
