March 17, 2015 Physical Science
The Moon-a Terrestrial “Planet” of Space The second brightest space object in space other than the Sun, the moon orbits the Earth on a monthly basis. Its size and composition allows it be categorized with Earth, Venus, Mercury, and Mars….
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March 17, 2015 Physical Science
Why Are Northern Lights Northern? One of the most beautiful sights in nature has got to be the northern lights, The Aurora Borealis. These vague curtains of light shift, drift and flash in and out of the night sky of…
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March 17, 2015 Physical Science
A constellation is a grouping of fixed stars that appear to form a picture in the night sky. There are hundreds of constellations in both the northern hemisphere and the southern hemisphere and each one of them is a picture…
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March 17, 2015 Physical Science
On March 26, 1859, a French medical doctor and amateur astronomer named Lescarbault claimed to have observed a planet closer to the sun than Mercury. He called it Vulcan, after the Roman god of fire. He calculated the planet’s movements…
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March 17, 2015 Physical Science
When the first images from the Mars Orbiter Camera, part of the Mars Global Surveyor Mission, were viewed by scientists they were impressed by the deep gullies cutting into the Martian surface and began to theorize as to the conditions…
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March 17, 2015 Physical Science
Tungsten Symbol: W Atomic Number: 74 Atomic Mass: 183.84 amu (atomic mass units) Melting Point: 3410.0 C (3683.15 K, 6170.0 F) Boiling Point: 5660.0 C (5933.15 K, 10220.0 F) Number of Protons: 74 Number of Electrons: 74 Number of Neutrons:…
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March 17, 2015 Physical Science
The periodic table is a display of the chemical elements. It was first invented in 1869 by Russian chemist Dmitri Mendeleev. Over time the periodic table has been refined and extended due to the development of new elements. The periodic…
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March 17, 2015 Physical Science
Men are from Mars’ may be truer than what we first consider. Certainly the writer understood Mars represented the male gender; power, physical stamina, drive and aggression; and in health Mars rules the sex organs, muscular system, the kidney, bladder…
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March 17, 2015 Physical Science
One of the great educational space resources I have found on the Internet is NASA.com which is packed full of quality astronomy content. There were so may exciting space places to go on the NASA kids site, I didnt know…
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March 17, 2015 Physical Science
Dendrimers are a special class of polymers. (See http://www.helium.com/items/833616-what-is-a-polymer if you need a refresher on polymers.)The typical polymer is a chain where each monomer unit connects with another monomer unit in sequence. When the monomers can only form bonds to…
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