John Dobson (amateur astronomer)

John Lowry Dobson (14 September 1915 – 15 January 2014) was an American amateur astronomer and is best known for the Dobsonian telescope, a portable, low-cost Newtonian reflector telescope. He was also known for his efforts to promote awareness of astronomy (and his unorthodox views of physical cosmology) through public lectures including his performances of "sidewalk astronomy". Dobson was also the co-founder of the amateur astronomical group, the San Francisco Sidewalk Astronomers.

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April 10, 2026

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April 10, 2026

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"I was asked to give a talk... [by] the lady at the pretzel farm in Sierra... You understand a pretzel farm, where all those folded s are? ...[T]he lady ...asked me to give a talk on frustration. ...I said I was walking down through ... in Los Angeles in the winter... the rainy season, and there's this little stream of water coming along beside me... I was thinking that the poets say it will be happy when it reaches the sea. But the poets are wrong... The sea is trying desperately to get to the center of the earth, and the rocks are in the way, and it gets frustrated. ...So the rocks are trying desperately to get to the center of the earth, and the iron of the earth's core is in the way, and the rocks get frustrated. And the iron at the earth's core is trying desperately to fall into the sun, and its inertia is in the way, and it goes round and round... 18 miles a second, and it gets frustrated. And the sun is trying desperately to get to the center of the galaxy, and its inertia, the way it goes around 150 miles a second, and it gets frustrated. And the galaxy has been trying to merge with all the rest of the matter of the observable universe, but the expansion is in the way, and it gets frustrated. And the expansion has been trying to reduce the density of the universe, but the recycling is in the way, and it gets frustrated."

- John Dobson (amateur astronomer)

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