Columbus, Christopher

Columbus, Christopher, 383 Combinatorial synthesis, 1084 Combustion of alkanes, 74—77, 83. See also Heat of combustion Common names. See Nomenclature Concerted reaction, 136... 

Natural rubber can be obtained from the sap of a number of plants and trees, the most common source is the Hevea brasiliensis tree. Although natural rubber was known in Central and South America before the arrival of Christopher Columbus in 1492, the first use as an adhesive was established in a patent dated in 1891. As rubber became an important part of the industrial revolution, the rubber adhesives market grew in importance. To comply with the increasing demand on natural rubber materials, plantations of Hevea brasiliensis trees were established in southeast Asia in the early 20th Century, mainly to supply the demand from the automobile industry. 

Half a millennium ago Christopher Columbus set out on a voyage that changed the world forever. The academic establishment of his time believed it was a foolish idea to sail west, because India was so far away his crew would starve before they arrived. And, even if he got there by sailing down wind, how could he get home against the wind In fact, from a scientific standpoint they were absolutely correct. But, from a conunerdal standpoint, they were dead wrong about the value of Columbus voyage. 

There are various theories of how tobacco was introduced to Europe, but undoubtedly Christopher Columbus and his crews sampled this native weed and... 

The use of rubber for sports balls and for waterproofing fabric had been noted by Christopher Columbus in his voyages to America, but the results had not been satisfactory (Asimov 1989). Natural rubber is a polymer of the isoprene molecule (CsHs) with molecular weight in the order of 200,000, and consists of thousands of chains with short side chains. 

Christopher M. Hadad Department of Chemistry, The Ohio State University, 100 W. 18th Ave., Columbus, OH 43210, USA and Department of Chemistry, Winston-Salem State University, 601 Martin Luther King Jr. Dr., Winston-Salem, NC 27110, USA... 

Christopher Columbus wrote in 1503, on his fourth voyage to the West Indies, Some of the people whom I discovered were cannibals.. . . They say that there are great mines of copper in the country, of which they make hatchets and other elaborate articles, both cast and soldered they also make of it forges, with all the apparatus of the goldsmith, and crucibles (107). 

Major, R. H. Select Letters of Christopher Columbus, Hakluyt Soc.,... 

Sally, we must make the time. Christopher Columbus didn t start exploring without first understanding basic principles of navigation. You ve returned to your FBI office. I want to talk more about hyperspheres and tesseracts, the 4-D counterparts to spheres and cubes. You draw a circle on the board with a dot at its center. A circle is the collection of points (on a plane) all at the same distance r from a point. A sphere is the collection of points (in space) all at the same distance r from a point. Similarly, a hypersphere is the collection of points (in hyperspace) all at the same distance r from a point. ... 

Christopher Columbus returns to Spain from the New World. Among the wonders he brings back is tobacco. 

Many other references to bitumen occur throughout the Greek and Roman empires, and from then to the Middle Ages early scientists (alchemists) frequently alluded to the use of bitumen. In later times, both Christopher Columbus and Sir Walter Raleigh (depending upon the country of origin of the biographer) have been credited with the discovery of the asphalt deposit on the island of Trinidad and apparently used the material to caulk their ships. 

Christopher Columbus brought the practice back to Europe where it was first used for its medicinal properties. French diplomat Jean Nicot, for whom nicotine is... 

Com (Zea mays L.) is a leading cereal crop in the United States and is also referred to as maize. Com is classified in the tribe Maydeae of the Gramineae or grass family. The com plant may have developed from teosinte, a wild grass found in Mexico and Guatemala. The oldest evidence of com found in South America dates back to about 1000 BC and in North America to at least 2000 BC. Com was a major food and daily bread of the Mayans, Aztecs, and Incas of Central and South America. Spaniards who came with Christopher Columbus and were sent to explore the interior of Cuba in 1492 returned with a report of a sort of grain they call maize which was well tasted, baked, dried, and made into flour (Wallace and Brown, 1956). 

Christopher M. Hadad Department of Chemistry The Ohio State University Columbus, Ohio 43210... 

At first, all of them thrived, but today only wine continues to play an important role in the island s economy. Historical records in 1450 by the Venetian navigator, Alvise da Mosto, known as Luis de Cadamosto, show that Malvasia Candida was brought during the first years of colonization. Infante D. Henrique ordered that lands be planted with Malmsey, brought from Candia (the capital of Crete). Throughout the fifteenth century, vineyards expanded steadily. The consequence of this was an increasing in exports, but it is the discovery of America by Christopher Columbus that constitutes a landmark in the history of Madeira wine. 

Rosengarten (1969) has presented a very interesting history of spices. In 1492, Christopher Columbus arrived in America while searching for a direct western route to the Spice Islands. Though he did not find the Spice Islands, Columbus brought allspice,... 

Prabir K. Dutta, Micky Puri, and Christopher Bowers Department of Chemistry, The Ohio State University, Columbus, OH 43210... 

Christoph J. Grundmann, Lancaster Pa, and Wi Ihel m Joseph Schnabel, Columbus Ohio Olin Mathieson Chemical Corptoration, Virgnia Nov 15th 1957... 

Popes, military leaders, explorers and other scoundrels, who were deemed to have done something significant (more often than not, something quite brutal and despicable). Being cursed with a mildly sadistic streak, we thought, "Why not do the same to our readers " Poor old Christopher Columbus, a man who has suffered... 

It is known that Christopher Columbus saw Dominican amber being mined and traded, and amber carvings have been foimd in grave sites in the Americas. But both the graves and Coliunbus s voyage are relatively recent in terms of amber history. The use of Baltic amber has been traced back to the Stone Age. 

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