By: Bob Trowbridge
Was alchemy just another get-rich-quick scheme? The practice of alchemy cannot be traced back to its origins. It was certainly practiced by the Chinese prior to Christianity and was probably much farther back than that. It also existed in many other cultures including Egypt, where...
By: Lorraine Danella
The Origins of AlchemyThe roots and origin of the practice known as Alchemy take us back all the way to ancient Egypt, although many cultures throughout time have been involved in the seeking out of alchemy's secrets. Alchemy, the transmutation of base elements into gold...
By: lalala
Film TheoryFirstly there are different thicknesses of lubrication that can be applied. They are the 1) thick-film lubrication, 2) thin-film lubrication, 3) mixed-film lubrication, 4) boundary-film lubrication and 5) solid-film lubrication.In thick-film regime, the lubricant completely separates the workpiece and the tool. As the...
By: Jobie Weetaluktuk
Meteors, fireballs, meteoritesYou see them in the night sky, a streak of light shoot toward the earth at different angles. Sometimes they are more noticeable, like the August and November. They come to the all the time. Aliens that are so common that most people...
By: Levi S. Johnston
Every elementary school student at some point or another either had a song or mnemonic device to help them remember the "Nine Planets" in order from the sun, outward. MVEMJSUNP (with just the planets), or sometimes SMVEMAJSUNP (showing the positions of the sun and asteroid...
By: Caroline Deveraux
Who Rules The Earth? The Planets or Mankind?The Planets Fighting BackDo we seriously think we could win?This is not even a chicken and egg situation, where mankind could argue that we were on Planet Earth first. The Planets existed way before the first...
By: Joseph Mohr
One of the things that an amateur astronomer begins to think about soon after they begin seeing some of the interesting objects in the night sky is that they wish they could capture this on film. Of course, astronomers have been photographing the objects in...
By: Joseph Mohr
Purchasing a telescope for the first time can be difficult. There are lots of choices of telescopes and manufacturers. Who can be trusted? Who makes the best telescopes and what are the best ones for a new amateur astronomer? This article will try to answer...
By: Mike Junkins
For many years in the recent past America has tried to wean itself away from nuclear power. Chernobyl and 3 Mile Island were catastrophes that made everyone realize that sooner or later we would have our own Chernobyl here in the United States. After...
By: Daniel Scott
Among the myriad stars of our Galaxy, a handful are observed regularly emitting pulses of X-rays. The pulsing X-rays are detected with instruments on spacecraft orbiting above the Earth's atmosphere since the atmosphere absorbs X-rays and prevent any from reaching the Earth's surface. These pulsing...

 

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