... rapidly to a much smaller size. The pressure that resulted from the collapse caused the sun to become very hot and to glow brightly. The newly born sun began to heat up the swirling eddy of gas and dust that was to become the earth. The gas expanded, and some of it flowed away into space. The dust that remained behind then collected together because of gravity. Although the shrinking earth generated a lot of heat, most of this heat was lost into space. Therefore, the original earth was most likely solid, not molten. This hypothesis was developed by a scientest, Harold C. Urey in 1952. It is also known as the Urey's hypothesis. He showed that methane, ammonia ...
... patterns, and fault patterns. Mid-Oceanic Ridges The mid-oceanic ridges rise 3000 meters from the ocean floor and are more than 2000 kilometers wide surpassing the Himalayas in size. The mapping of the seafloor also revealed that these huge underwater mountain ranges have a deep trench which bisects the length of the ridges and in places is more than 2000 meters deep. Research into the heat flow from the ocean floor during the early 1960s revealed that the greatest heat flow was centered at the crests of these mid-oceanic ridges. Seismic studies show that the mid-oceanic ridges experience an elevated number of earthquakes. All these observations indicat ...
... In iron and steel production, the smelting of metal sulfate ore produces pure metal. This causes the release of sulfur dioxide. Sulfur dioxide can also be emitted into the atmosphere ny natural disasters or means. This ten percent of all sulfur dioxide emission comes from volcanoes, sea spray, plankton, and rotting vegetation. The oxides of nitrogen are by-products of firing processes of extreme high temperatures, for example: automobiles, and utility plants; and in chemical industries, for example: fertilizer production, etc. Also, natural processes such as bacterial action in soil, forest fires, volcanic action, and lightning make up five percent ...
... developed very slowly. They went from being very large, clumsy, elaborate machines which needed lots of human intervention to one program on a floppy disk. When the power of computers increased, so did the possibilities of CADD. Images on CADD systems are drawn with the aid of a keyboard, mouse, or tracking ball. One selects the starting point of a line, the ending point, and the line is drawn. A scale at the bottom of the screen tells how long the line will be. On some CADD systems, the computer itself can measure how long the line will be while the operator inputs the length of the line. Lines are the basis of all drawings. Straight lines are fairly simple ...
... they are called saprophytes. Fungi are very widely distributed throughout the world, particularly in the temperate and tropical regions where there is sufficient moisture for them to grow. They are less likely to be found in dry areas. Some few types of fungi have been reported in Arctic and Antarctic areas (some molds, after all, thrive on refrigerated food). There are about 50,000 known species of . Although any single typical may not be uniform in appearance--a mushroom, for example, has a cap, stem, and rootlike components--it has, in fact, a uniform structure throughout. The typical consists of a mass of tubular, branched filaments, or strands, called hyp ...
... The more bits a TV can transmit, the better the picture or screen resolution. The digital TV signal can carry as many as 19.4 megabits of data, which means a broadcaster can mix multiple programs of varying bit sizes onto a single channel. Say you’re watching a football game, since one camera view only uses up so many bits, you can select a different camera angle while watching the same game on the same channel. It is possible for a network, like NBC, to show two different programs at the same time on the same channel. Conceivably, if the president in on, you can watch regular scheduled programming. With the introduction of the digital TV, the introd ...
... There are 935 craters on Venus that are named after famous women. The largest crater is named crater Mead. Almost all of Venus has volcano rock on the surface. There is over 100,000 volcano’s and they dot the surface. One flow out of a volcano is over 4,300 miles long. Venus was the first planet to be reached by a space probe. The space probe Mariner 2 flew close to Venus that sent information to Earth. The Mariner 2 was from the United States. A space probe from the Soviet was called the Venera 7. It was the first probe to land on Venus. When it landed it stopped working because the temperature was so hot. The first color pictures was from the space probe ...
... fuels) by factories, homes, and cars is the main source of chemicals that cause . Power stations emit large amounts of sulfur dioxide and also nitrogen oxides, while car exhaust contains large amounts of nitrogen oxides. Once is formed, it can stay up in the clouds for a long time. These clouds can be carried off by the wind to other areas, sometimes hundreds of miles away, where they eventually fall to the Earth as or snow. This is called transboundary pollution. For awhile some people believed that by building high smoke stacks they would be sending the chemicals out of harms way. But all this did was push the emissions higher into the air, where they re ...
... air inside. Although water is the most important factor in the greenhouse effect, is a major reason why human regions experience less cooling at night than do dry regions. Changes in both water and carbon dioxide play an important role in climate changes. For this reason many scientist have expressed concerns over the global increase of carbon dioxide in resent decades, largely as a result of the burring of fossil fuels. In many other factors of the earth’s present climate remain more or less constant, the carbon dioxide increase should raise the average temperature at the earth’s surface. Because warm air can contain warm water before reaching saturation t ...
... of modern medicine, stated of migraine treatment,”Cannabis indica is probably the most satisfactory remedy”(Russo, 1998). The best way to describe a study like this is historical. Many of the historical uses of marijuana may have contemporary relevance. As I stated before, there are very few ways to study something that the society feels is harmful to the subject. This is exactly what the research is pointing out by voicing the words of our ancestors. This historical point-of-view allows our conscience to be at ease so that accurate tests can be performed to conclude a up to the date analysis. For so long marijuana has received criticism due to ...
