John Lowry Dobson (born September 14, 1915) is a highly influential amateur astronomer. He is most well known in astronomy circles because his name is attached to the popular Dobsonian telescope design. He is credited for inventing the design, which is used by a large number of amateur astronomers. He is lesser known for his efforts to promote awareness of astronomy through sidewalk astronomy. Dobson's popularity, particularly his association with amateur telescope making, has made him a frequent guest at meetings of amateur astronomers. He often leverages this popularity to draw attention to his unorthodox views of cosmology.
John Dobson has been dubbed by some as the "pied piper of astronomy", and the "star monk". He was the only amateur astronomer highlighted in the PBS series The Astronomers, and appeared twice on The Tonight Show Starring Johnny Carson. He has also been featured in two recent documentaries, Universe–The Cosmology Quest and A Sidewalk Astronomer.
He was born in Beijing, China. His maternal grandfather founded Peking University, his mother was a musician, and his father taught zoology at the University. He and his parents moved to San Francisco, California in 1927. His father accepted a teaching position at Lowell High School and taught there until the 1950s. He spent 23 years in a monastery, after which he became more active in promoting astronomy, and his own brand of nonstandard cosmology.
During his time at the monastery, his interest in astronomy led to activities in telescope building in order to understand more of the Universe. To this end, he often offered assistance and corresponded about his work with those outside the monastery. Telescope building was not part of the curriculum at the monastery, however, and much of his correspondence was written in code so as to attract less attention. For instance, a telescope was referred to as a "geranium", which is a type of flower. A "potted geranium" referred to a telescope in a tube and rocker, while a "geranium in bloom" referred to a telescope whose mirror was now aluminized.
Eventually John Dobson was given the option of ceasing his telescope building or leaving the order. At the time he chose to stop building telescopes.
He was later asked to speak at the Vedanta Society of Southern California in Hollywood, and has continued to spend two months there each year teaching telescope and cosmology classes. He spends two more months at his home in San Francisco, and spends most of the rest of each year travelling as an invited guest for astronomical societies, where he speaks about telescope building, sidewalk astronomy, and his views of cosmology and the scientific establishment.
In 2004, the Crater Lake Institute presented John Dobson with its Annual Award for Excellence in Public Service for pioneering sidewalk astronomy in the national parks and forests, "where curious minds and dark skies collide." In 2005, the Smithsonian magazine listed John Dobson as among 35 individuals who have made a major difference during the lifetime of that periodical.
John Dobson designed a very simple, low cost alt-azimuth mounted Newtonian telescope that employs common materials such as plywood, formica, PVC closet flanges, cardboard construction tubs, recycled porthole glass, and indoor-outdoor carpet. This type of simplified Newtonian telescope and mount is popularly referred to as a Dobsonian telescope. Using this construction method makes the typical Dobsonian telescope large, portable, inexpensive, and easy to manufacture.
The design is named after Dobson because he is credited for being the first person to have combined all these construction techniques in a single telescope design. He is reluctant to take credit, however, pointing out that he built it that way because it was all he needed. In his own words, he jokes that he was "too retarded" to build a more sophisticated telescope with an equatorial telescope mount. With its simplicity of construction and use, the Dobsonian has become a very popular design today, particularly for large amateur telescopes.
Unexpectedly, the Sidewalk Astronomers were invited to the Riverside Telescope Makers' meeting in 1969. The Dobsonian telescope brought by the Sidewalk Astronomers was unconventional, because most telescopes at such meetings tended to be smaller, on equatorial mounts, and designed for astrophotography rather than optical viewing. Surprisingly and controversially at the time, Dobson's telescope tied in first prize for best optics. It was also awarded the runner up prize for mechanics, despite the mechanics of the telescope and its mount being relatively simple.
Sidewalk Astronomers has since become a prominent organization, recognised for its taking of astronomy to the public. The current organization has members throughout the world, and continues to promote public service astronomy by putting telescopes on street corners in urban areas. Members of the organisation also visit national parks giving slide show presentations, providing telescope viewing, and explaining the Universe
He suggests that the Big Bang model has many flaws and that the theory has become quite “tortured” in order to keep the model viable, likening it to the Ptolemaic system. He cites the inconsistency of dark matter, that cannot be explained without resorting to what he considers increasingly complicated, unlikely and unsupported theories. In essence, Dobson claims that physicists have been inventing new physics to match the Big Bang model, recently with a "mystery" called dark energy. He is also a critic of an education system which, he asserts, indoctrinates young scientists in the Big Bang model “without presenting any of the problems” with it. Ultimately, Dobson is more interested in challenging people to broaden their thinking, and to think more critically, than to debate which cosmological model is correct.
Put simply, Dobson contends that although the universe is forever expanding, matter “recycles” over time in a way comparable with quantum tunneling. Entropy therefore remains constant, because atoms rebuild their order as they recycle.
In Origins Dobson addresses the creation of life: “For a Big Bang cosmology, in which the early Universe was extremely hot, a discussion of the origin of life is of course appropriate, since life could not have been with us from the beginning. But for a Steady State model, in which the Universe is without beginning, perhaps life itself could be without beginning.” Dobson also points out the Pasteur-Darwin paradox: “Pasteur thought that he had shown that life does not arise from non-living matter but only from previous life. Darwin seems to have taken the other view, namely, that it might have arisen from ‘some warm pool’.”