Biology Article Analysis Essay Example | Topics and Well Written Essays - 750 words

Biology Article Analysis - Essay Example Miller and several others started to construe that life started not in heat but in ice-at temperatures that hardly any living creatures can currently subsist. The very rules of chemistry may have preferred ice. If existence on Earth began from ice, then man's probability of discovering life in another place in the solar system-not to point out anywhere in the galaxy-could possibly be superior than we could ever think of. The researchers were amazed by the results of the samples which appear better in cold temperatures rather than in room temperatures. With these findings, they tried to submit their documents to a well-known science journal but they were rejected. The reviewer had different theories and notions about their findings such as the idea that the molecules were formed while thawing. Being challenged by this, the researchers conducted more experiments to strengthen the validity and reliability of their claims. When the time came for Trinks to go back to Hamburg in 2003, the scientist had created an assumption that ice was responsible not only for just concentrating chemicals. The ice facade is a plane of positive and negative charges; Trinks predicted those charges seizing specific nucleobases and piling them like Lego, aiding them to combine into a series of RNA. For years scientists had attempted to force RNA chains to develop under all types of circumstances without the means of enzymes; this feat was reached when they were able to form a chain which consisted of about 40 nucleobases. When Biebricher examined his own trials, he was surprised to discover RNA molecules up to 400 bases in length. In more recent, some of his experiments he states he has monitored RNA molecules 700 bases in length. The scientist's outcomes are incredible that some contemporaries have questioned whether unintentional contamination is a possible reason. Orgel supported the experiment. He stated that it was a remarkable result. The experiments and finding of the research opens up possibilities of being able to answer the origin of life on earth as well as the probability of man being able to live elsewhere in the solar system. The common themes that I have noticed on the discussions in the article that I had are: identification and justification of the experiments and findings of different researchers and scientists, the scientific explanations of opposing views and reactions regarding the experiments, the collaboration of experts in the field of biology. Aside from this, the article also provided an insight as to how tedious the jobs of researchers are for it takes years or even decades to be able to come up with breakthrough findings which needs adequate amount of evidence for support. Even though the research already existed for decades, the public still has skepticisms that can be used to challenge, oppose and criticize the works of the researchers. Miller

Ground Segment and Earth Station Engineering for Satellite Coursework

Ground Segment and Earth Station Engineering for Satellite Communications - Coursework Example Satellite communication is a form of wireless media in which the free space is used for communication. One important advantage of such media is that a large geographical area can be covered without actually carrying out the physical wired networking. Such a communication with the help of satellites is possible when the signal is sent from ground stations to the satellites placed in geostationary orbits, which in turn sends the signal back to another ground station/s located in different city, country or region depending upon the placement and alignment of the satellite. The ground based infrastructure plays a crucial role in this transmission process. The earth station closely monitors the movement of the satellite and keeps sending the signals to it. The signal are received by the transponder and then sent back. A number of commercial and domestic applications are now dependant on the satellite communication. With emerging technologies, standards, and protocols the usage of satellit e communication in transmission, broadcasting and internet is also becoming cost effective. During this training I learned about the fundamentals of ground segment and earth station and how the satellite communication has evolved over the years from being a commercial facility with huge dish 30 m diameter antennas to small sized rooftop 0.6 m dish antenna for receiving DTH broadcasts. This has effectively made it possible even for the ordinary consumers to make use of satellite communication. Satellites can provide communication and broadcast coverage even to places like valleys, dense forests, mountains and difficult terrains where it is not possible to erect communication towers or dig channels for communication lines. All this can be provided at practically no extra costs. What we require is a receiving dish antenna with other gadgets used at other similar places. Satellites can