Physical Science

Chemical warfare is the use of chemicals to kill, injure, or incapcitate and enemy in a warfare situation. Chemical warfare is much different from conventional weapons because the effects are not due to any explosive force. The use of living…
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The summer solstice is an annual event that is possible because the earth rotates on a tilted axis. The tilt of the earth remains relatively constant regardless of its position in relation to the sun. This is true at least…
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Fireworks were said to have occurred around 2,000 years ago in China. They were actually found by a Chinese cook when she was mixing kitchen ingredients one day. She mixed KNO3, sulfur, and charcoal, and simply heated them in an…
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DNA is a common acronym known to almost everybody form about middle school and up. What does this catchy abbreviation stand for? DNA stands for Deoxyribonucleic acid, which is the basis for all human beings. DNA comes in the form…
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Though the Chinese initially created the firecracker, the Italians developed the modern firecracker that shoots up into the sky and explodes into a fountain of yellows and oranges. They used it as the Chinese had once done, at festivals. Years…
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Residents of colder climes are familiar with salt trucks that scatter their loads over the road after (or during) a heavy snowfall.  Rock salt was historically a relatively cheap and widely available resource.  Recent years have demonstrated that demand can…
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The human body is one of the most complex and in depth mammals to walk this planet. The human body is so well thought out and made, it is almost as if it was a planned, in depth process in…
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The significance of crystals in chemistry is often overlooked. Working in an organic chemistry lab, scientists often use the process of crystallization to purify a specific compound. Crystals are often formed in nature, under similar circumstances. Crystallization occurs when a…
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Building and constructing a volcano that erupts for a project, presentation, or just mere pleasure is a lot more simple than it may sound. There are only a few steps involved. If you are unaware, the mixture of baking soda…
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Edward Teller (1908-2003) was a Hungarian-American physicist who is best known for his work in developing the hydrogen bomb, although he also was an earlier member of the research team developing the first atomic bomb as part of the Manhattan…
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