It incredible to think that more than fourteen years since the world lost a great astronomer, exobiologist populariser and science pioneers – Carl Sagan.
A son of Jewish immigrants to the United States, Sagan was born in Brooklyn, New York, where he spent his childhood developed an interest in astronomy. achievement of A, he studied physics at the University of Chicago, took a master’s in 1956, before the doctoral degree awarded in 1960 in the field of astronomy and astrophysics. He later taught at Harvard University until 1968, when he moved to Cornell University in Ithaca, New York beckoned. In 1971 this became a full-time teachers, including the director of the Planetary Laboratory Studies. He is also a growing interest in the exo-biology and publishes pioneering Finding Extraterrestrial Intelligence (SETI). During this period, he also became the Associate DirectorCenter for Radio Physics and Space Research at Cornell, and later played an important role in teaching at Cornell in skepticism and critical thinking.
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Sagan and discoveries about other planets in our solar system, and applications for the earth is big. He, for example, this discovery is important for the high surface temperature of Venus is 500 degrees Celsius and atmospheric pressure is crushing, the data obtained from planetary radio emissions. While working for NASA at the Jet Propulsion Laboratory in Pasadena, he was involved in the design and management of the first Mariner missions to Mars. Mariner 2 Venus will then confirm the analysis of Sagan’s Evil Twin Earth, and uncomfor accusations paradisemany scientists in the early 1960s. Through his studies of Venus and the greenhouse effect fled, he identified the artificial emissions of carbon dioxide in the earth as the cause of climate change. He also vigorously opposed the Cold War arms race, to justify his views with the study of the effects of nuclear winter – one of the after effects of a nuclear superpower full /
Sagan was the first scientist to hypothesise that Saturn’s moon Titan may have lakes and seas methane or liquid ethane, and that the atmosphere in reddish smoke were the result of complex organic molecules. This will be confirmed after Sagan’s death by satellite Cassini and Huygens Titan lander related. He is also the hypothesis that Jupiter’s moon Europa has a subsurface ocean of liquid water. This he thought it possible, under the ice in such a low temperature, because heat from Europa’s volcanism, resulting from the massive pairs of months of tension because of the gas near giant.
His other achievements included work on seasonal changes on the surface of Mars, including what is identified as windstorms, while many other scientists regard them as vegetation. His interest in the possibility of extraterrestrial life led her to show how amino acids, the building blocks of life, can be produced by irradiation of basic organic chemical compounds found in abundance in the giant planets of our solar system is a lot of gas and moon them. In conjunction with this, he also helped Dr. Frank Drake (who formulated the now famous Drake Equation is now complete with a decrease in the number of variables to calculate the number of intelligent extra-terrestrials are capable of radio communication between the stars in the Milky Way) in writing the Arecibo Message, smiling in interstellar space in 1974, with the aim of informing extraterresexperiments on earth. Sagan is also a founding member of the Planetary Society, an organization that promotes the active involvement of communities throughout the world for planetary exploration and new forms such as propulsion Solar Sail.
However, above all, is a great legacy of advocacy science Sagan, and especially the land- violates many of science education publications general and documentary films which earned him public recognition throughout the world, particularly in the Cosmos: A Personal Voyage. Greatly influenced by the success of the BBC series The Ascent of Man Jacob Bronowski’s (1974), PBS commissioned to produce Sagan (along with colleague Ann Druyan and Steven Soter) This documentary epic true series.
As popularisers astronomy and science, Sagan enjoyed the opportunity it. The result is truly inspiring and beautiful luxury thirteen-part series, first aired in 1980 and viewed (according to the NASA Office of Space Science) with more than 600 million people in more than 60 countries around the world – science documentary series is still the most-watched ever. So little wonder given the series an Emmy and Peabody Award. Druyan notes due carefulness a fitting tribute to her late husband, who even now digitally re-mastered from the entire series required an update a little about the strength of the /
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In taking scientific theories and concepts as complex as Special Relativity, Darwin and the Atom Selection Theory and presents them in proper shape but easily understood, without the need for complex math, Sagan realized the importance for human well-being of future society for understanding knowledge and involvement in what is called the Enterprise Scientific and Druyan. Although making scientific knowledge accessible to the general public, he received much criticism from the scientific elite, no doubt deserve a lot of jealous of celebrity status, or hatred against the interests of the attack. Explanation of Special Relativity in the Cosmos, “Journeys permanently in Space and Time”, one of the most eloquent introduction and can be understood by the subject, drawing the reader or viewer to explore scientific problems /
Themany books that include Pale Blue Dot: A Vision of Human Future in Space and The Demon Haunted World: Science as a Candle in the Dark. He uses the example of Ptolemy II, the destruction of the Great Royal Library at Alexandria in 415AD, and the murder of Hypatia, the last librarian and first female mathematician in the world of the mass, as an example of what can happen if this knowledge was suppressed by the ruling elite. The result of the destruction of the Great Library, and many centuries before the civilization of Ionia was the loss of knowledge about the incalculable value of collecting more than a thousand years, and ranging from a dark era in human history. This era marked by mysticism, fanaticism, racial and religious extremism, hatred, and witchcraft, ending only with Copernicus, Johannes Kepler, Tyco Brahe and Galileo Galilei and Giordano Bruno (many of them even in the seventeenth century is being persecuted by the Roman Catholic Church, and even in the case of Bruno was murdered foract misguided to speculate about the galaxy full of exo-planets and outer space)
Neither threat to our civilization is now out of ignorance evaporates. In Pale Blue Dot, Sagan notes how we (in western civilization) has planned to produce advanced society based primarily on high technology and science, where only a fraction of the population have the scientific knowledge. This, according to Sagan, coupled with the growth of religious extremism, racial hatred, superstition, the supernatural and seudoscience is a recipe for disaster, and one, given the weapons we will fast forward, or slow, exploding in our faces.
Sagan interesting for scientists and fans of science together to become advocates for the subject. Instrumental in the two Viking landings on Mars in the summer of 1976 and Voyager missions to outer planets in the 1980s, he used the Voyager 1 “Pale Blue Dot “photograph of Earth as an example of a senior administrator at NASA. do not want to waste resources reconfigure the spacecraft to take photographs of Earth from six billion kilometers Sagan’s appeal over their heads. citing the public interest that a very large photo. After all he believed that the U.S. public funds NASA and their paymasters have the right to see what will be one of the most terkenal photos of all time – the earth sebagai lot of dust hung in a pale blue sun rays. This does not mean that some people to avoid the destruction diri melalui environmental degradation or with weapons of mass destruction (and there are more than sufficient quantity still available)
In good and Cosmos. Pale Blue Dot, Sagan speculated that simultaneously acquire the ability of interstellar communication, civilization is also obtained atomic physics, and perhaps using a more-or-less directly from nuclear weaponsto engage in self-destruction. Maybe this is why we have not yet visited by ETs. Or, as Sagan said, maybe ET was always dealing with the resulting environmental damage itself. But above all, Sagan, in all his knowledge of advocacy is an optimist and believe that humanity can and will rise above the challenges posed by the nature of our technology, we are aligning with confidence, and natural disasters that can be thrown on the earth, such as asteroid impact. This will be achieved, he said, by the company with the same scientific method has proven successful independently verified the critical facts and theories, not by superstition, or mysticism.
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Sagan powerful states in the Cosmos that it was the ritual of the birth of every child, every generation gain knowledge about their place in the universe, and to critically assess knowledge and facts. To do less would risk taken by the trickster character first, maybe even in the social scale – and there are many examples of that in human history. Extraordinary claims do require extraordinary evidence. As Sagan said, there is no authority in the science, it’s truly democratic subject, depending on the verifiable facts, and theories that can be falsified. But also very humane and creative subject. No one knows where the next Einstein rank, or Newton would come.
No articles on Carl Sagan would be complete without mention of Contact. The book, in which the film is based largely follows, written by Carl Sagan and published in 1985. Some characters Sagan clearly in the main character, Ellie Arroway, and this novel serves as an interesting platform in which he summarizes the ideas a lot of interest surrounding his life, especially the first contact with extraterrestrials. A film adaptation of Contact, starring Jodie Foster, was released in 1997. Without damaging the film, for those who missed out, Dr. Ellie Arroway (Jodie Foster), after many years to seek “truth” in radio astronomy, radio astronomy to find conclusive proof of intelligent aliens, who have receiving our first radio and television since the early twentieth century. Alien submit a plan of how humans can make a great machine to use the wormhole technology (the science behind the theory is confirmed as correct by other scientists Sagan and his colleagues, Kip Thorne). Ellie’s role in the film is juxtaposed with that of Palmer Joss (Matthew McConaughey). He has spent his life searching for “truth” through faith in God. This is the first radio “contact”, which means that both Ellie and Palmer, and indeed, all people on Earth, was forced to challenge their own assumptions. In the inevi first contact, humans will be able to find a compromise between science and faith? If every movie worth watching – this is the case
Tragically, Sagan died in December 1996, after a long struggle with myelodysplasia, a rare form of bone cancer at a relatively young age of 62. A voice of reason and science in a world where superiorrstition and mysticism once again in power, he is one talented individual humanity, at a critical time in history, at least afford to lose. The challenge is to readers, viewers and students to take gauntlet.
If you ever tried to rationalize why you are so diligent at all interested in astronomy and cosmology, astronomy, the great legacy of Carl Sagan’s return to the public. He succinctly explains why we are intrigued to think about the universe and how long to leave the earth – it’s in our genes to get back to the stars. The more important you realize how important science, and inspire your children, or the younger generation is generally with the subject. However, you may be depressed in the degradation and sensationalisation science documentaries on television. If this happens, and you get a chance, watch or read or read other publications Sagan’s Cosmos. Allow this powerful masterfrom Cosmos to your house and let her inspire your family, friends and young children is very important in taking interest science.
The strong evidence Sagan taught and inspired many lies in students and colleagues who have gained a leading role in space exploration space. These include Carolyn Porco, a planetary scientist leading the U.S., Director of Hayden Planetarium, New York and PBS-Neil deGrasse Tyson Nova presenters, and Steve Squyres, principal investigator of NASA Mars Exploration Rovers, Spirit and Opportunity. On a personal level, it is not because the opportunity to see from the PBS series Cosmos five years ago, you will not read sekarang initials, and you will not see yourself or the kids, so we enjoyed our visit a local planetarium, or our night under the stars with a telescope we /
Bibliography
Mars and the Mind of Man (Harper & Row, 1973)
Broca’s Brain: Reflections on the Romance of Science (Ballantine Books, 1974)
Other Worlds (Bantam Books, 1975)
Murmurs Earth: The Voyager Interstellar Record (Random House, 1977)
The Dragons of Eden: Speculation on the Evolution of Human Intelligence (Ballantine Books, 1980)
Ann Druyan, co-author, Shadows Forgotten Ancestors: A Search for Who We Are (Ballantine Books, 1993)
Pale Blue Dot: A Vision of Human Future in Space. Random House, (November 1994
The Demon-Haunted World: Science as a Candle in the Dark Books (Ballantine, 1996)
Ann Druyan coauthor, Billions and Billions: Thoughts on Life and Death at the Brink of the Millennium(Ballantine Books, 1997)
The Varieties of Scientific Experience: A Personal View of the Search for God, 1985 (Gifford lectures, Penguin Press, 2006).