… wrote a letter to President Franklin D. Roosevelt. Urged by Hungarian-born physicists Leo Szilard, Eugene Wingner, and Edward Teller, Einstein told Roosevelt about Nazi German efforts to purify Uranium-235 which might be used to build an atomic…

… now I'm thinking about the Internet, the all-pervasive medium through which I've published my thoughts and work I've done in my free time for several years now. Like mostly everyone else, I communicate with others using the Internet, play games through…

… as invaluable, an individual’s right’s and privacies are becoming jeopardized. Personal information is logged and charted via Email, Internet activity, business transactions, medical records in addition to a myriad of other databases that store private…

… Ritalin or methylphenidate is a stimulant derived from the same family as cocaine. It is being dispensed with a speed and nonchalance compatible with our drive-through culture, yet entirely at odds with good medicine and common sense. Ritalin…

… Bohr and Atomic Theory In ancient Greek the word atom meant the smallest indivisible particle that could be conceived. The atom was thought of as indestructible; in fact, the Greek word for atom means "not divisible." Knowledge about the…

… the drug Ecstasy, was developed in Germany in 1914 as an intermediary substance to pave the way to alternative therapeutic medicines. Presently, MDMA is used for a subculture in America and all over the world of ““ravers”” who spend their weekends taking…

… of Computers Only once in a lifetime will a new invention come about to touch every aspect of our lives. Such devices changed the way we manage, work, and live. A machine that has done all this and more now exists in nearly every business in the United…

… who suggested that when people categorize objects they match them against "the prototype", i.e. an "ideal exemplar", which contains the most representative features inside the category. Objects that do not share all the characteristics of the prototype…

… amount of curvature is necessary for people to move and walk properly. But three people out of 100 have a condition that causes the spine to curve too much, a condition called scoliosis (pronounced skoh-lee-oh-sis). The name comes from the Greek word…

… terminally ill patient, in Holland, has risen the question whether euthanasia is immoral or a simple human right. Doctors seem to have no doubt. They made an oath. The definition of Euthanasia depends on whether it is active or passive. Active…