Physical Science

The term biosphere came from the geologist Eduard Suess in 1875 who defined it as “the place on earth’s surface where life dwells”.Physical Geographers describe the biosphere as the biological component of the Earth’s systems, it is the surface of…
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Go with me on this one for a while… Imagine a great civilization long ago somewhere in the universe – far from Earth, far from our Solar System. Imagine a thriving people filling a planet with themselves and their products…
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Most of the time, the planet Pluto orbits behind the planet Neptune. Because of its small size it is now classified as a “dwarf planet”. It is smaller than the seven moons of our solar system. Pluto was reclassified on August…
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Second comes right after first, and helium is in second place only to hydrogen in a number of ways. It is the second lightest element, the second most abundant element, and is also the second element in the periodic table…
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Generally speaking there is an all encompassing rule for getting the most out of your observations, whatever specific type of star you are observing, and that is the darker the better. Observing from the darkest sky possible will make subtly…
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The first day of spring, according to folk tradition in Bulgaria is the first day of March. It is one of the few holidays in the year unrelated to Christianity. It is still surrounded by mystic beliefs, legend, and much…
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The decision to cut funding for Mars exploration was made early in year 2012, with hundreds of millions in cuts that would apply to year 2013. The cuts forced NASA to cancel missions that would have sent a Mars orbiter in…
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We throw around the term “light year,” without really understanding how large a light year is. So, let’s ask the question. What is a light year? A light year is the distance light travels in a year (remember, light speed…
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UFOs: A Scientific Point of View. The very term UFO conjures up exotic images of strange lights and shapes of graceful movement and speed in the twilight skies. These flying saucers or hovering cigars that are glimpsed fleetingly between the…
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Sulfur Symbol: S Atomic Number: 16 Atomic Mass: 32.066 amu (atomic mass units) Melting Point: 115.21 C (388.36 K, 239.38 F) Boiling Point: 444.6 C (717.75 K, 832.28 F) Number of Protons: 16 Number of Electrons: 16 Number of Neutrons:…
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