Sunday, November 20, 2011

Space / Astronomy: What's Hot Now: Free Christmas Wallpaper for Your Computer Desktop - Place This Free Christmas Wallpaper on Your Computer Desktop

Space / Astronomy: What's Hot Now
These articles that had the largest increase in popularity over the last week // via fulltextrssfeed.com

Free Christmas Wallpaper for Your Computer Desktop - Place This Free Christmas Wallpaper on Your Computer Desktop
Nov 20th 2011, 10:18

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Apollo 8
On Christmas, 1968, a turbulent world looked to the heavens for a unique view of our home planet. This photo of "Earthrise" over the lunar horizon was taken by the Apollo 8 crew in December 1968, showing Earth for the first time as it appears from deep space.

Astronauts Frank Borman, Jim Lovell and William Anders had become the first humans to leave Earth orbit, entering lunar orbit on Christmas Eve. In a historic live broadcast that night, the crew took turns reading from the Book of Genesis, closing with a holiday wish from Commander Borman: "We close with good night, good luck, a Merry Christmas, and God bless all of you -- all of you on the good Earth."

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Mission Control Marks the Season
12.23.04
Flight control team in the Station (Blue) Flight Control Room in the Mission Control Center takes a brief break from duties to pose for a seasonal portrait. Later, flight controllers stood by to monitor the Kazakhstan launch of a Progress resupply vehicle, scheduled for a Dec. 25 arrival to the International Space Station.

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Space / Astronomy: What's Hot Now: Robert H. Goddard and His Liquid-Gasoline Rocket

Space / Astronomy: What's Hot Now
These articles that had the largest increase in popularity over the last week // via fulltextrssfeed.com
Robert H. Goddard and His Liquid-Gasoline Rocket
Nov 20th 2011, 10:18

From , former Guide

Robert H. Goddard and His Liquid-Gasoline Rocket

Robert H. Goddard and His Liquid-Gasoline Rocket

NASA Marshall Space Flight Center (NASA-MSFC)

Dr. Goddard's liquid oxygen-gasoline rocket was fired on March 16, 1926, at Auburn, Massachusetts. It flew for only 2.5 seconds, climbed 41 feet, and landed 184 feet away in a cabbage patch. From 1930 to 1941, Dr. Goddard made substantial progress in the development of progressively larger rockets, which attained altitudes of 2400 meters, and refined his equipment for guidance and control, his techniques of welding, and his insulation, pumps, and other associated equipment.

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Saturday, November 19, 2011

Space / Astronomy: Most Popular Articles: Georges-Henri Lemaitre Bio

Space / Astronomy: Most Popular Articles
These articles are the most popular over the last month. // via fulltextrssfeed.com
Georges-Henri Lemaitre Bio
Nov 19th 2011, 11:05

Georges-Henri Lemaitre was born in Charleroi, Belgium on 17 July 1894. Lemaitre studied humanities at a Jesuit school before entering the civil engineering school of the Catholic University of Leuven at the age of 17. When war broke out in Europe in 1914, he put a hold on his education to volunteer in the Belgian army. He was awarded the Military Cross with palms.

World War I was a terrible war, with many deaths and horrors on the battlefields. Still troubled by what he had gone through, he resumed his studies, taking up physics and mathematics and preparing for priesthood. Under the tutalege of Charles de la Vallée-Poussin, he earned a doctorate in 1920 from the Université Catholique de Louvain (UCL) with a thesis entitled l'Approximation des fonctions de plusieurs variables réelles (Approximation of functions of several real variables). He moved on to the Malines seminary and was ordained as a priest in 1923. In the meantime, he discovered Einstein's Theory of Relativity.

The Curious Priest

Georges-Henri Lemaitre had an insatiable curiosity, which made him a natural scientist. After his ordination, he studied at the University of Cambridge's solar physics laboratory (1923â€"24) followed by the Massachusetts Institute of Technology, Cambridge (1925â€"27). During these studies, he took an interest in the works of American astronomers Edwin P. Hubble and Harlow Shapley dealing with the expanding universe.

In the meantime, in 1925, Lemaître took a position as a part time lecturer at the Université Catholique de Louvain (UCL). It was here he began down the path towards the thesis that would bring him to the attention of the world. In 1927, he accepted a full time position at UCL and released his work entitled Un Univers homogène de masse constante et de rayon croissant rendant compte de la vitesse radiale des nébuleuses extragalactiques (A homogeneous Universe of constant mass and growing radius accounting for the radial velocity (radial velocity: Velocity along the line of sight toward or away from the observer) of extragalactic nebulae).

An Explosive Theory

This paper explained the expanding universe in a new way, and within the framework of the General Theory of relativity. Initially, many scientists, including Albert Einstein, himself, were skeptical. However, further studies by Edwin Hubble, seemed to prove the theory. Initially called the "Big Bang Theory" by its critics, the name eventually stuck. Even Einstein was won over, standing and applauding at a Lemaitre seminar, saying "This is the most beautiful and satisfactory explanation of creation to which I have ever listened."

Georges-Henri Lemaitre continued to advance science throughout his life. He studied cosmic rays and worked on the three-body problem. His published works include Discussion sur l'évolution de l'univers (1933; “Discussion on the Evolution of the Universe”) and L'Hypothèse de l'atome primitif (1946; “Hypothesis of the Primeval Atom”).

On March 17, 1934, he received the Francqui Prize, the highest Belgian scientific distinction, from King Léopold III, for his work on the expanding universe. In 1936, he was elected a member of the Pontifical Academy of Sciences, where he became the president in March 1960, remaining so until his death. He was also named prelate in 1960. In 1941, he was elected member of the Royal Academy of Sciences and Arts of Belgium. In 1941, he was elected member of the Royal Academy of Sciences and Arts of Belgium. In 1950, he was given the decennial prize for applied sciences for the period 1933-1942. In 1953 he received the very first Eddington Medal award of the Royal Astronomical Society.

He died on the 20th of June 1966.

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Space / Astronomy: What's Hot Now: Georges-Henri Lemaitre Bio

Space / Astronomy: What's Hot Now
These articles that had the largest increase in popularity over the last week // via fulltextrssfeed.com
Georges-Henri Lemaitre Bio
Nov 19th 2011, 10:18

Georges-Henri Lemaitre was born in Charleroi, Belgium on 17 July 1894. Lemaitre studied humanities at a Jesuit school before entering the civil engineering school of the Catholic University of Leuven at the age of 17. When war broke out in Europe in 1914, he put a hold on his education to volunteer in the Belgian army. He was awarded the Military Cross with palms.

World War I was a terrible war, with many deaths and horrors on the battlefields. Still troubled by what he had gone through, he resumed his studies, taking up physics and mathematics and preparing for priesthood. Under the tutalege of Charles de la Vallée-Poussin, he earned a doctorate in 1920 from the Université Catholique de Louvain (UCL) with a thesis entitled l'Approximation des fonctions de plusieurs variables réelles (Approximation of functions of several real variables). He moved on to the Malines seminary and was ordained as a priest in 1923. In the meantime, he discovered Einstein's Theory of Relativity.

The Curious Priest

Georges-Henri Lemaitre had an insatiable curiosity, which made him a natural scientist. After his ordination, he studied at the University of Cambridge's solar physics laboratory (1923â€"24) followed by the Massachusetts Institute of Technology, Cambridge (1925â€"27). During these studies, he took an interest in the works of American astronomers Edwin P. Hubble and Harlow Shapley dealing with the expanding universe.

In the meantime, in 1925, Lemaître took a position as a part time lecturer at the Université Catholique de Louvain (UCL). It was here he began down the path towards the thesis that would bring him to the attention of the world. In 1927, he accepted a full time position at UCL and released his work entitled Un Univers homogène de masse constante et de rayon croissant rendant compte de la vitesse radiale des nébuleuses extragalactiques (A homogeneous Universe of constant mass and growing radius accounting for the radial velocity (radial velocity: Velocity along the line of sight toward or away from the observer) of extragalactic nebulae).

An Explosive Theory

This paper explained the expanding universe in a new way, and within the framework of the General Theory of relativity. Initially, many scientists, including Albert Einstein, himself, were skeptical. However, further studies by Edwin Hubble, seemed to prove the theory. Initially called the "Big Bang Theory" by its critics, the name eventually stuck. Even Einstein was won over, standing and applauding at a Lemaitre seminar, saying "This is the most beautiful and satisfactory explanation of creation to which I have ever listened."

Georges-Henri Lemaitre continued to advance science throughout his life. He studied cosmic rays and worked on the three-body problem. His published works include Discussion sur l'évolution de l'univers (1933; “Discussion on the Evolution of the Universe”) and L'Hypothèse de l'atome primitif (1946; “Hypothesis of the Primeval Atom”).

On March 17, 1934, he received the Francqui Prize, the highest Belgian scientific distinction, from King Léopold III, for his work on the expanding universe. In 1936, he was elected a member of the Pontifical Academy of Sciences, where he became the president in March 1960, remaining so until his death. He was also named prelate in 1960. In 1941, he was elected member of the Royal Academy of Sciences and Arts of Belgium. In 1941, he was elected member of the Royal Academy of Sciences and Arts of Belgium. In 1950, he was given the decennial prize for applied sciences for the period 1933-1942. In 1953 he received the very first Eddington Medal award of the Royal Astronomical Society.

He died on the 20th of June 1966.

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Space / Astronomy: What's Hot Now: Robert Goddard Biography

Space / Astronomy: What's Hot Now
These articles that had the largest increase in popularity over the last week // via fulltextrssfeed.com
Robert Goddard Biography
Nov 19th 2011, 10:18

On October 5, 1882, Nahum Danford Goddard, a businessman, and Fannie Hoyt Goddard delivered a son, Robert, in Worcester, Massachusetts. Early in life, young Robert suffered from pulmonary tuberculosis which kept him out of school for long periods of time. However, he kept up with his studies and was an avid reader, devouring Cassell's Popular Educator as well as popular science fiction novels. In Fact, it was after reading H.G. Wells's "The War of the Worlds" that he first became interested in space exploration.

He later wrote in his autobiography about an inspiration that came to him as a boy. While his family was staying at the suburban home of friends in Worcester, on October 19, 1899, he climbed into an old cherry tree to prune its dead branches. Instead, he began daydreaming: "It was one of the quiet, colorful afternoons of sheer beauty which we have in October in New England, and as I looked toward the fields at the east, I imagined how wonderful it would be to make some device which had even the possibility of ascending to Mars, and how it would look on a small scale, if sent up from the meadow at my feet."

"I was a different boy when I descended the tree from when I ascended, for existence at last seemed very purposive."

October 19 became "Anniversary Day," noted in his diary as his personal holiday.

Five years later, after graduating from school, Robert Goddard applied and was accepted at Worcester Polytechnic Institute. In 1907, while a student at Worcester Polytechnic Institute in Massachusetts, Goddard experimented on a rocket powered by gunpowder in the basement of the physics building. Clouds of smoke caused a lot of commotion and the faculty, rather than expel him, took an interest in his work.

He received his degree in physics in 1908 and was made a Fellow in the physics department at Clark University. There, he received his master's degree in 1910 and in 1911 he received his doctorate.

By 1914, Goddard already had received two U.S. patents (#1,103,503 and #1,102,653): one for a rocket using liquid fuel and the other for a two- or three-stage rocket using solid fuel. Until that time, propulsion was provided by various types of gunpowder.

That year, he began teaching physics at Clark University in Worcester. His thoughts on space flight started to emerge in 1915, when he theorized that a rocket would work in a vacuum, and didn't need to push against air in order to fly. This meant that in the vacuum of space, rocket engines would be able to produce thrust. At his own expense, he began to make systematic studies about propulsion provided by various types of gunpowder. He began experiments on the efficiency of rockets. He bought some commercial rockets and measured their thrust using a ballistic pendulum, a heavy mass suspended by ropes, to which the rocket was attached. The rocket was fired, and the height to which the pendulum rose provided a measure of the total momentum (mass times velocity) imparted to it. Goddard also used an equivalent set-up, where the mass pushed against a spring, instead of being suspended.

His classic document was a study that he wrote in 1916 requesting funds of the Smithsonian Institution so that he could continue his research. This was later published along with his subsequent research and Navy work in a Smithsonian Miscellaneous Publication No. 2540 (January 1920). It was entitled "A Method of Reaching Extreme Altitudes." In this treatise, he detailed his search for methods of raising weather recording instruments higher than sounding balloons. In this search, as he related, he developed the mathematical theories of rocket propulsion.

Goddard's discoveries were given little attention by the U.S. government. Funding from the Smithsonian Institution allowed Goddard to continue his rocket research and develop the mathematical theories of rocket propulsion. In 1920, the Smithsonian published his original paper, "A Method for Reaching Extreme Altitudes," in which he included a small section stressing that rockets could be used to send payloads to the Moon exploding a load of flash powder there to mark its arrival. The bulk of his scientific report to the Smithsonian was a dry explanation of how he used the $5000 grant in his research. Yet, the press picked up Goddard's scientific proposal about a rocket flight to the moon and erected a journalistic controversy concerning the feasibility of such a thing. Much ridicule came Goddard's way. And he reached firm convictions about the virtues of the press corps which he held for the rest of his life.

He responded to a reporter's question by stating, "Every vision is a joke until the first man accomplishes it; once realized, it becomes commonplace."

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Space / Astronomy: What's Hot Now: Constellations Pictures - Delphinus - Picture of the Constellation Delphinus

Space / Astronomy: What's Hot Now
These articles that had the largest increase in popularity over the last week // via fulltextrssfeed.com
Constellations Pictures - Delphinus - Picture of the Constellation Delphinus
Nov 19th 2011, 10:18

From , former Guide

The Dolphin - Genitive: Delphini Abbreviations: Del, Dlph Right Ascension, (h): 21 Declination, (deg): 10N

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Space / Astronomy: What's Hot Now: Apollo 13 space vehicle during Countdown Demonstration Test

Space / Astronomy: What's Hot Now
These articles that had the largest increase in popularity over the last week // via fulltextrssfeed.com
Apollo 13 space vehicle during Countdown Demonstration Test
Nov 19th 2011, 10:18

From , former Guide

Pictures of Apollo 13 Mission - Apollo 13 space vehicle during Countdown Demonstration Test

Pictures of Apollo 13 Mission - Apollo 13 space vehicle during Countdown Demonstration Test

NASA Johnson Space Center (NASA-JSC)

Nighttime, ground-level view of Pad A, Launch Complex 39, Kennedy Space Center, showing the Apollo 13 (Spacecraft 109/Lunar Module 7/Saturn 508) space vehicle during a Countdown Demonstration Test; Close-up, nighttime, ground level view of Pad A, Launch Complex 39, showing the Apollo 13 space vehicle during a Countdown Demonstration Test.

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