Search Results - Astrophysicist
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Astrophysics (lang-el Astro - meaning "star", and lang-el physis – f?s?? meaning "nature") is the branch of astronomy that deals with the physics of the universe, including the physical properties ( luminosity, density, temperature, and chemical composition) of celestial objects such as galaxies, stars, planets, exoplanets, and the interstellar medium, as well as their interactions. The study of cosmology is theoretical astrophysics at scales much larger than the size of particular gravitationally-bound objects in the universe. Because astrophysics is a very broad subject, astrophysicists typically apply many disciplines of physics, including mechanics, electromagnetism, statistical mechanics, thermodynamics, quantum mechanics, relativity, nuclear and particle physics, and atomic and molecular physics. In practice, modern astronomical research involves a substantial amount of physics. The name of a university's department ("astrophysics" or "astronomy") often has to do more with the department's history than with the contents of the programs. Astrophysics can be studied at the bachelors, masters, and Ph.D. levels in aerospace engineering, physics, or astronomy departments at many universities. Although astronomy is as ancient as recorded history itself, it was long separated from the study of physics. In the Aristotelian worldview, the celestial world tended towards perfection—bodies in the sky seemed to be perfect spheres moving in perfectly circular orbits—while the earthly world seemed destined to imperfection; these two realms were not seen as related. The only known supporter of Aristarchus was Seleucus of Seleucia, a Babylonian astronomer who is said to have proved heliocentrism through reasoning in the 2nd century BC. This may have involved the phenomenon of tides,[1] which he correctly theorized to be caused by attraction to the Moon and notes that the height of the tides depends on the Moon's position relative to the Sun.[2] Alternatively, he may have determined the constants of a geometric model for the heliocentric theory and developed methods to compute planetary positions using this model, possibly using early trigonometric methods that were available in his time, much like Copernicus.[3] Some have also interpreted the planetary models developed by Aryabhata (476-550), an Indian astronomer,[4][5][6] and Albumasar (787-886), a Persian astronomer, to be heliocentric models.[7]
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Showing 1 to 4 of 4 Articles matching 'Astrophysicist' in related articles. |
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1. Deciphering the Harrapan Script
November 13, 2009
"We want to find the bedrock against which all further interpretation of the language should be checked," These are the words of Mayank Vahia, an astrophysicist in the Tata Institute for Fundamental Research in Mumbai.
Vahia is just one of the members in the team of mathematicians and computer scientists from institutions in the United States and India. It was they who opposed and rejected the claims of scholars who declared that the ancient tablet script found in the Indus Valley is but “rudimentary pictograms” adding that the ancient people, who ages ago had lived there, were illiterat... (read more)
Author: Emma Fox
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2. Maasai Mara to Serengeti - 7th Wonder of the World
September 10, 2009
Maasai Mara and Serengeti and the wildebeest migration has lately been declared the 7Th (seventh) New wonder of the world by ABC.This has been decided by a panel of experts which included an oceanographer- M/s silvia Earlier,range and wildlife management expert,astrophysicist-Neil de Grasse Tyson and a tour expert invited by ABC after six days rigorous selection and classification exercise which ended on 17th November 2006 with a breakfast TV show "Good Morning America" televising a live interview with the Kenya wildlife director. The New wonders are separate from the conventional Seven Wond... (read more)
Author: Edwin Muriithi
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3. Real estate Investing - What you need to know
March 16, 2009
Start with Research
A lot of Real Estate Gurus selling products would have you believe that Real Estate investing is the easiest thing in the world. You just buy their product, and you will be a millionaire overnight. Now, I am not saying that Real Estate investing is as hard as being an Astrophysicist, but there are some things that you will need to know.
The first thing is you need to have a plan. An important part of that plan should be, to always work on getting as much knowledge in the Real Estate Market as you possibly can. At the same time you will need to set financial goal... (read more)
Author: Zach Kling
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4. Tuba Lessons and Cold Air Intakes
December 03, 2007
When I was 6 years old, I started taking tuba lessons. Not by choice of course.
My parents had read an article about some super-baby who joined college at the age of 6 and at the age of 7 became a renowned astrophysicist. They figured that ol’ junior could use some mental development as well. They probably went a little overboard. First they got me a language tutor, then a chess instructor and then they even started to play Mozart during dinner time! Finally came the tuba lessons.
At first it was fun. The instrument was almost as big as I was, and I loved blasting into it unt... (read more)
Author: Jimmy Plant
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