Overview of the Schroedinger equation in chemistry
By: Tarek Musslimani
The Schroedinger equation is a quantum mechanical differential equation that describes the energetics of atoms and molecules. In addition, its solution of atomic and molcular wavefunctions gives the shape and energy of the various atomic and molecular orbitals of the molecule under investigation. The Schroediger...
The planet Mercury
By: Steven Mars
The planet Mercury is the closest planet to the sun of all nine planets (Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune, and Pluto). Its diameter is 3,032 miles. Its average distance from the sun is about 36 million miles. It comes as close...
By: Ernest Capraro
Alchemy has been much romanticized, and much superstition has sprung up around it. The reality of alchemy is that while the Dark Ages of science swept over Europe, leaving the populace ignorant at best, Eastern scholars in the modern day middle east were making great...
By: Ernest Capraro
There are different definitions of acids and bases, each useful in their own contexts.An early one is that of Arrhenius, who defined acids as molecules with a hydrogen "an H" and bases as molecules with a hydroxide "an OH". This definition works very well...
Biography: Pythagoras of Samos
By: Steven Mars
Pythagoras of Samos lived in Ancient Greece from 560-480 B.C. He was born on the island of Samos according to Herodotus. It is now a part of the country Turkey. His father's name was Mnesarchus and mother's name was Pythais. Little is known about...
By: R.A. Scott
Aliens are a popular subject today, more popular than perhaps at any other time in history. Whether it is seeing alien craft or being kidnapped and experimented upon, mmmmm anal probes, they are all around in popular culture. Aliens are on TV, in movies and...
By: Sweetch
Pluto is a celestial object, recently discovered (1930s, by Clyde Tombaugh) within the outer part of the solar system. Considered to be the ninth of nine planets in the solar system until 2006, Pluto was always recognised as a body in possession of properties not...
How mathematicians discovered planet Neptune
By: Siew Cheng Hoe
Neptune is the eighth planet from the sun in our solar system. The discovery of Neptune is remarkable in the sense that it is predicted with mathematical accuracy. Both John Couch Adams and Urbain Jean Joseph Le Verrier are credited with the discovery of Neptune...
Biographies: Alexander Graham Bell
By: Lijun He
One of the most famous scientists of the late 19th to early 20th century was Alexander Graham Bell. He is most renowned as the inventor of the telephone, one of the main forms of communication today. But who was Graham Bell behind his inventions? What...
Space exploration in the future
By: David Warmflash
With the first flights NASA's new Orion spacecraft set to take place over the next several years, new human voyages beyond low Earth orbit are set to inspire a new generation of America's children. To celestial bodies beckon: the Moon and Mars. What is...

 

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