Index Education & Reference Science Results 11 - 20 of 385 The Origins of Biological and Chemical Warfare Author : Sam Vaknin Chemical and biological warfare are not an invention of the 20th century. Solon (638-559 BC) used a strong purgative, the herb hellebore, in the siege of Krissa. During the 6th century BC, the Assyrians poisoned enemy wells with rye ergot. In the Peloponnesian War (431-404 BC), the Spartans flung sulfur and pitch at the Athenians and their allies. In the Middle Ages, besiegers used the bloated and dripping bodies of plague victims as readymad... | Read more... The Tale of the Humble Popcorn Author : Sam Vaknin Corn pollen more than 80,000 years old was found in Mexico. Proper popcorn was known in China, Sumatra, and India for at least 5000 years. Popped popcorn and kernels 5600 years old were discovered in the "Bat Cave" in New Mexico in 1948-1950. Popcorn kernels - ready to pop - were unearthed in ancient Peruvian tombs. In a cave is southern Utah, fluffy, fresh looking, white popcorn was dated to 1000 years ago. Popcorn was used by the Aztecs and ... | Read more... Gas is important Author : Ryan Fyfe In todays modern economy, Gas & Oil, have become such important aspects, that it would be safe to say that we rely on them. A few examples are gas in our cars, for our furnaces, and the production of plastics. How much do you really know about Gas though? A gas is one of the different phases of matter. Similar to liquids and plasmas, gases are fluids. This means that they have the ability to flow and that they will not usually return to their ... | Read more... The Life Cycle of Science Author : Sam Vaknin "There was a time when the newspapers said that only twelve men understood the theory of relativity. I do not believe that there ever was such a time... On the other hand, I think it is safe to say that no one understands quantum mechanics... Do not keep saying to yourself, if you can possibly avoid it, 'But how can it be like that?', because you will get 'down the drain' into a blind alley from which nobody has yet escaped. Nobody knows how it c... | Read more... Weird Science – The Inner Workings Of The National Science Foundation Author : Dave Klein The National Science Foundation is an independent government agency in the United States. The National Science Foundation is responsible for providing support to basic science research, which is primarily accomplished through research funding. The National Science Foundation mostly provides research funding in the form of grants. These grants are most often given in the form of individual grants to graduate students and professors. In fact, w... | Read more... The Complexity of Simplicity Author : Sam Vaknin "Everything is simpler than you think and at the same time more complex than you imagine." (Johann Wolfgang von Goethe) Complexity rises spontaneously in nature through processes such as self-organization. Emergent phenomena are common as are emergent traits, not reducible to basic components, interactions, or properties. Complexity does not, therefore, imply the existence of a designer or a design. Complexity does not imply the existence... | Read more... Great Astronomical Observatories of the World Author : David Craig The great observatories of the world are responsible for many of the prolific astronomical observations of the twentieth century. Telescopic photograpy, radio dish data collection, and infrared imaging are among the many different techniques observatories have been able to employ to learn about the heavens. The Palomar Observatory may be the most famous of all. With five telescopes operated by Cal-Tech’s graduate and post-doctoral students,... | Read more... The Mystery Behind Saturn’s Moon Enceladus Author : David Craig The Cassini-Huygens exploration of Saturn, a seven-year joint venture of NASA, the European Space Agency, and the Italian Space Agency, is getting a closer look at its current subject of attention, the small moon of Enceladus. Enceladus is one of the most innermost moons of Saturn which scientists had assumed to be largely dead. With a very bright surface it reflects nearly 100 per cent of its heat and thereby has a very cold temperature, minus... | Read more... Cassini Confirms Enceladus Plume Responsible for E Ring of Saturn Author : David Craig The Cassini-Huygens exploration of Saturn, a seven-year joint venture of NASA, the European Space Agency, and the Italian Space Agency, is realizing more surprising discoveries. In addition to discovering that Cassini is geologically active in contrast to its nearby neighbor Mimas, Cassini has now proven that it is Enceladus indeed that is responsible for the E ring of Saturn. The E ring of Saturn is Saturn’s broadest, faintest ring. Encelad... | Read more... The Interesting Eagle Nebula Author : David Craig The Eagle Nebula, associated with open star cluster M16 of the Milky Way, was named for its dramatic similarity to the appearance of an eagle. Located 7000 light years from Earth, it is a component of the constellation Serpens (for Serpent). It was discovered in 1746 by P.L. de Cheseaux but it was not until twenty years later that the famous astronomer Charles Messier discovered it nebulosity. Not naked to the naked eye, it can be seen under t... | Read more... << Start < Prev 1 2 3 4 5 6 7 8 9 10 Next > End >>     [ Back ] Top AlphaContent 2.5.4 © 183 - visualclinic.fr

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