* http://www.questia.com/read/113240205?title=100%20Most%20Popular%20Scientists%20for%20Young%20Adults%3a%20%20Biographical%20Sketches%20and%20Professional%20Paths (online book)
* http://www.mwoa.org/hale.html
* http://en.wikipedia.org/wiki/George_Ellery_Hale
Friday, February 26, 2010
Astronomer Essay
George E. Hale was a famous astronomer who won many awards for his contributions to astronomy and the scientific field before dying in early 1938. He attended MIT, the observatory at Harvard, and at Berlin. While he was an undergraduate at MIT, he invented the spectroheliograph which he used to make discoveries about the sun, including the solar vortices and the magnetic fields of sunspots. He became the director of Kenwood Astrophysical observatory, and became a professor at two colleges in Chicago. He would later become the editor of the Astrophysical Journal.
While at Kenwood Observatory, George E. Hale first put the spectroheliograph, invented at MIT, to practical use. The spectralheliograph works by capturing a photographic image of the sun at a single wavelength of light. It does this by using a prism to separate the wavelengths of light and a narrow slit. While using the spectralheliograph, Hale discovered that sunspots are at relatively lower temperatures than other parts of the sun. Kenwood Observatory was constructed by George Hale’s father and Kenwood’s primary instrument was a 12 inch refractor telescope. The telescope was used in conjunction with Rowland grating as part of the spectroheliograph. Hale’s work at the Kenwood Observatory sparked the interest of many in the astronomical community.
George E. Hale worked to found many significant observatories. These observatories include Yerkes Observatory at the University of Chicago, Mount Wilson Observatory, Palomar Observatory, and the Hale Solar Laboratory. While at Mount Wilson Observatory in Los Angeles, Hale would receive a 1.5 m. telescope as a gift from France. The design of the telescope allowed for allowed for the pioneering of spectroscopic analysis, parallax measurements, nebula photography and photometric photography. The Hale telescope was one of the largest telescopes in use for many decades. Also while at Mount Wilson Observatory, Hale hired and encouraged Harlow Shapley and Edwin Hubble. Hale also helped make the California Institute of Technology into a top research university.
Hale also won many awards during his lifetime and had many astronomical objects named after him. Among his many awards, he was awarded the Galileo medal in 1920, the Actonian prize in 1921, the gold medal of the royal astronomical society in 1904, the Franklin gold medal in 1927, and the Bruce Medal in 1916. Among the objects named after Hale were the 22-year solar Hale cycle, the asteroid 1024 Hale, and a crater on the moon and a crater on mars. George E. Hale also had an award named in his honor, as the George Ellery Hale Prize for the Solar Physics Department of the American Astronomical Society.
George E. Hale, as he grew older suffered from neurological and psychological problems, including insomnia, and schizophrenia and would often report that there was an elf that would visit him regularly and advise him on his work. He spent months at a time in sanitariums.
While at Kenwood Observatory, George E. Hale first put the spectroheliograph, invented at MIT, to practical use. The spectralheliograph works by capturing a photographic image of the sun at a single wavelength of light. It does this by using a prism to separate the wavelengths of light and a narrow slit. While using the spectralheliograph, Hale discovered that sunspots are at relatively lower temperatures than other parts of the sun. Kenwood Observatory was constructed by George Hale’s father and Kenwood’s primary instrument was a 12 inch refractor telescope. The telescope was used in conjunction with Rowland grating as part of the spectroheliograph. Hale’s work at the Kenwood Observatory sparked the interest of many in the astronomical community.
George E. Hale worked to found many significant observatories. These observatories include Yerkes Observatory at the University of Chicago, Mount Wilson Observatory, Palomar Observatory, and the Hale Solar Laboratory. While at Mount Wilson Observatory in Los Angeles, Hale would receive a 1.5 m. telescope as a gift from France. The design of the telescope allowed for allowed for the pioneering of spectroscopic analysis, parallax measurements, nebula photography and photometric photography. The Hale telescope was one of the largest telescopes in use for many decades. Also while at Mount Wilson Observatory, Hale hired and encouraged Harlow Shapley and Edwin Hubble. Hale also helped make the California Institute of Technology into a top research university.
Hale also won many awards during his lifetime and had many astronomical objects named after him. Among his many awards, he was awarded the Galileo medal in 1920, the Actonian prize in 1921, the gold medal of the royal astronomical society in 1904, the Franklin gold medal in 1927, and the Bruce Medal in 1916. Among the objects named after Hale were the 22-year solar Hale cycle, the asteroid 1024 Hale, and a crater on the moon and a crater on mars. George E. Hale also had an award named in his honor, as the George Ellery Hale Prize for the Solar Physics Department of the American Astronomical Society.
George E. Hale, as he grew older suffered from neurological and psychological problems, including insomnia, and schizophrenia and would often report that there was an elf that would visit him regularly and advise him on his work. He spent months at a time in sanitariums.
Wednesday, February 17, 2010
Observations-podcasts
I listened to two podcasts from astronomycast.com for this half of the quarter. The two that i listened to were:
# 158-Pulsars and # 166-Multiverses
Pulsars:
What pulsars were explained as were basically white dwarfs that were spinning very rappidly and releasing energy as light. The pulsars are so densely packed that they have only neutrons because the electrons and protons have been pushed together so tightly. Many pulsars spin several hundred times per minute and can be used as accurate units of time.
Multiverses:
Multiverses were explained as parrallel dimmensions that have alternative outcomes. For instance if a coin were to be tossed in our universe and it came up heads, it would be tails in another parrallel universe. The universes were also explained to have the same basic mathematics such that 2+2 will equal 4 in a parallel universe.
# 158-Pulsars and # 166-Multiverses
Pulsars:
What pulsars were explained as were basically white dwarfs that were spinning very rappidly and releasing energy as light. The pulsars are so densely packed that they have only neutrons because the electrons and protons have been pushed together so tightly. Many pulsars spin several hundred times per minute and can be used as accurate units of time.
Multiverses:
Multiverses were explained as parrallel dimmensions that have alternative outcomes. For instance if a coin were to be tossed in our universe and it came up heads, it would be tails in another parrallel universe. The universes were also explained to have the same basic mathematics such that 2+2 will equal 4 in a parallel universe.
Sunday, February 14, 2010
APOD 3.4
http://apod.nasa.gov/apod/ap100208.html
This picture shows the atmospheric effect of a sun halo. The sun halo is created by tiny ice crystals in thin higher clouds. The crystals deflect the sun's light by 22 degrees creating a sort of magnifying effect. There are similar moon halos at night which have been seen here in Florida commonly.
This picture shows the atmospheric effect of a sun halo. The sun halo is created by tiny ice crystals in thin higher clouds. The crystals deflect the sun's light by 22 degrees creating a sort of magnifying effect. There are similar moon halos at night which have been seen here in Florida commonly.
APOD 3.3
http://apod.nasa.gov/apod/ap100202.html
This picture was interesting to me because of the atmospheric effects that were going on in the picture. The picture shows a dense fog with a fog bow and mars near opposition. A fog bow is created by moonlight, rather than sunlight. The picture was taken from the top of a volcanic crater.
This picture was interesting to me because of the atmospheric effects that were going on in the picture. The picture shows a dense fog with a fog bow and mars near opposition. A fog bow is created by moonlight, rather than sunlight. The picture was taken from the top of a volcanic crater.
APOD 3.2
http://apod.nasa.gov/apod/ap100120.html
This apod was of a video that shows the known universe. It was very interesting to me to find out what we already know about the universe and what we have predicted that there might be in the universe. The video started by showing the earth, then the human-made satellites, then the moon's orbit, then the planet's orbit and the sun, then the milky way, then the known galaxies, and then what we have hypothosized might be in the Universe.
This apod was of a video that shows the known universe. It was very interesting to me to find out what we already know about the universe and what we have predicted that there might be in the universe. The video started by showing the earth, then the human-made satellites, then the moon's orbit, then the planet's orbit and the sun, then the milky way, then the known galaxies, and then what we have hypothosized might be in the Universe.
Friday, February 5, 2010
APOD 3.1
http://apod.nasa.gov/apod/ap100122.html
This picture interested me because it is something that we have talked about in class. It is of the annular solar eclipse which took place on January 15, 2010. The annular phase of the eclipse lasted for 11 minutes and 8 seconds. This makes this the longest annual solar eclipse to occur in the next 1,000 years. The picture was taken on the southern tip of India, just before mid-eclipse.
This picture interested me because it is something that we have talked about in class. It is of the annular solar eclipse which took place on January 15, 2010. The annular phase of the eclipse lasted for 11 minutes and 8 seconds. This makes this the longest annual solar eclipse to occur in the next 1,000 years. The picture was taken on the southern tip of India, just before mid-eclipse.
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