EssayZap  
Enter Topic  

» Get Science and Nature Papers

The Future Of NASA

... may even be considering ways to alter life on Mars, so that people would be able to live there some day. Some products developed in NASA's space program that we now incorporate in our daily lives include the vacuum cleaner, pacemaker, pens that can write upside-down, and the zero-gravity training system. The vacuum cleaner was originally a great tool for astronauts in outer space. It is now a very helpful tool for cleaning our homes. The pacemaker is a form of life-support on spacecrafts, helping astronomers' hearts pump while they are o ...

Number of words: 377 | Number of pages: 2

Genetically Altered Foods

... To the knowledge of most, the United States can be very manipulative or should I say persuading, so therefore it doesn't take much on their part to convince the regulators that the crops are safe. Those who protest have debated on a list of concerns dealing with this issue. For example, one of which brings a question to the environmental policies. It states that Stimulating the resistance of cslve use or such herbicides (Nature 559). " A lot of concern has come from one certain crop and that is maize, which was altered to an extent. The ...

Number of words: 528 | Number of pages: 2

Fuel Cell

... zero-emission vehicles. The was first developed in the 1960's by General Electric for NASA. It was considered as a definite possibility for an alternative power source for space program, but the cost and size of the stacks were tremendous. By 1983, Geoff Ballard and a small team of physicists were able to develop the Proton Exchange Membrane (PEM) to produce nearly ten times as much energy, while being only a fraction of the size. How the PEM Works: A is an electrochemical device that produces electricity silently, without combustion. H ...

Number of words: 1167 | Number of pages: 5

Adamantane

... Decker believed that his decaterpene was similar in structure as the diamond lattice. Decaterpene, as in diamond, was proposed by Decker to be highly structured and strain free.2 Decker proposed decaterpene in 1924, but that was all it was until 1933 when the structure was proven to exist. Isolated in the petroleum of Hodinin, Czechoslovakia by Landa and Machachaeck, decaterpene became incarnate.3 However, the fact that they found the structure Decker predicted did not mean that his nomenclature would be used to identify the compo ...

Number of words: 2393 | Number of pages: 9

The Kangaroo

... enormous tail. It moved by leaping around, almost like our human jumping. This amazing creature was the kangaroo, often referred to as the "Boomer" or "Old Man" in Australia. The Gray Kangaroo, the most well known species average weight is 145 pounds and from nose to tip of the tail is 10 feet long. The tail alone is about 4 feet long. The kangaroo has a small head with large ears and a small mouth. The fur is soft and woolly and some can have stripes on them. The kangaroo's body is specially built for jumping. It has two long, powerful ...

Number of words: 1108 | Number of pages: 5

Endangered Species Of South

... steady rate of extinction is a normal process in the course of evolution, and is called the background rate of extinction (Lampton 14). Species have slowly evolved and disappeared throughout geological time because of climate changes and the inability to adapt to survive competition and predation. Since the 1600's, however, the rate of extinction has accelerated rapidly because of human population growth and resource consumption (17). Today, most of the world's habitats are changing faster than most species can adapt to such change ...

Number of words: 1449 | Number of pages: 6

Dreams Rem

... research in his monumentally original book The Interpretation of dreams. According to Freud, dreams have a meaning which can be deciphered if one looks deeply enough. In his view, the dreams concerns the dreamers past and present, and it arises from unknown regions within. He saw the dream as significantly analogous to a hysterical symptom. On the surface, they both appear meaningless and bizarre, but they become understandable when understood as veiled expressions of an unconscious clash between competing motives. Freud developed an elab ...

Number of words: 713 | Number of pages: 3

Pages: 1 ... 143 144 145 146 147 148