Discussion:
Arthur C. Clarke - RIP
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HJK
2008-03-18 22:11:31 UTC
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http://news.sky.com/skynews/article/0,,30200-1309902,00.html

from wikipedia:
"The idea of a geosynchronous satellite for communication purposes was first
published in 1928 by Herman Potocnik. The geostationary orbit was first
popularised by science fiction author Arthur C. Clarke in 1945 as a useful
orbit for communications satellites. As a result this is sometimes referred
to as the Clarke orbit. Similarly, the Clarke Belt is the part of space
approximately 35,786 km above mean sea level in the plane of the equator
where near-geostationary orbits may be achieved."
http://en.wikipedia.org/wiki/Geostationary_orbit
http://en.wikipedia.org/wiki/Herman_Poto%C4%8Dnik
Mike Terry
2008-03-19 07:14:58 UTC
Permalink
Sir Arthur C. Clarke's most famous prediction on the future is his proposal
of geostationary satellite communications published in the Wireless World
magazine in 1945. Not considered seriously at the time it became a reality
within 20 years with the launching on 1965 April 6th of Intelsat I
http://samadhi.jpl.nasa.gov/msl/QuickLooks/intelsat1QL.html Early Bird the
first commercial geostationary communication satellite.

A satellite in an equatorial circular orbit at a distance of approximately
42,164 km from the center of the Earth, i.e., approximately 35,787 km
(22,237 miles) above mean sea level has a period equal to the Earth's
rotation on its axis (Sidereal Day=23h56m) and would remain geostationary
over the same point on the Earth's equator. In 2002 the Clarke Orbit had
over 300 http://www.satsig.net/sslist.htm satellites.

The first reference to geostationary satellites is Clarke's letter to the
editor titled Peacetime Uses for V2 published in the 1945 February issue of
Wireless World (page 58).
Arthur Clarke in his Scientific Autobiography Ascent to Orbit published 1984
say that he had forgotten about this letter till he was reminded of it in
1968 by the engineering staff of the Sri Lanka Broadcasting Corporation.

A 150 dpi scanned image of page 58 of an original 1945 Wireless World
magazine is linked at http://lakdiva.org/clarke/1945ww/1945ww_feb_058.html

Clarke privately circulated in 1945 May a proposal titled The Space-Station:
Its Radio Applications in six typed manuscripts. The top copy of that is now
in the National Air and Space Museum, Smithsonian Institution, Washington
D.C. It was reprinted in Spaceflight, Vol 10. no 3, March 1968 pp 85-86 and
in Ascent to Orbit pp 57-58.

In Ascent to Orbit Clarke says the paper with original title The Future of
World Communications was written in late June and submitted to the RAF
censor on July 7th. It was sent to Wireless World on August 13th and
accepted on September 1st. The editor had changed title to Extra-Terrestrial
Relays and published it in the 1945 October issue of Wireless World (pages
305-308).

The 150 dpi scanned images of pages 305-308 of an original 1945 Wireless
World magazine is linked below. Note that the last two pages reprinted in
Ascent to Orbit have been reformatted omiting an illustration on page 307
which had no Figure number. See link at
http://lakdiva.org/clarke/1945ww/1945ww_oct_305-308.html

See also details of the Wireless World Magazines images
http://lakdiva.org/clarke/1945ww/provenance.html

http://lakdiva.org/clarke/1945ww/
Mike Terry
2008-03-19 07:15:36 UTC
Permalink
By Patricia Sullivan
Washington Post Staff Writer
March 19, 2008

Arthur C. Clarke, 90, the world-famous science-fiction writer, futurist and
unofficial poet laureate of the space age, died of a respiratory ailment
March 18 at his home in Colombo, Sri Lanka.

Mr. Clarke co-wrote, with director Stanley Kubrick, the screenplay for
"2001: A Space Odyssey," which is regarded by many as one of the most
important science fiction films made. A prolific writer, with more than 100
published books, he was praised for his ability to foresee the possibilities
of human innovation and explain them to non-scientific readers.

The most famous example is from 1945, when he first proposed the idea of
communications satellites that could be based in geostationary orbits, which
keep satellites in a fixed position relative to the ground.

Some scoffed, but the idea was proved almost a generation later with the
launch of Early Bird, the first of the commercial satellites that provide
global communications networks for telephone, television and high-speed
digital communication. The orbit is now named Clarke Orbit by the
International Astronomical Union.

"He had influenced the world in the best way possible," writer Ray Bradbury
said in Neil McAleer's 1992 book "Arthur C. Clarke: The Authorized
Biography." "Arthur's ideas have sent silent engines into space to speak in
tongues. His fabulous communications satellite ricocheted about in his head
long before it leaped over the mountains and flatlands of the Earth."

In addition to his books, he wrote more than 1,000 short stories and essays.
One of his short stories, "Dial F for Frankenstein" (1964), inspired British
computer scientist Tim Berners-Lee to invent the World Wide Web in 1989.

Mr. Clarke also popularized the idea of a space elevator as an
energy-efficient alternative to rockets. Conceived by a Russian engineer in
1960 and re-invented at least four times in the next decades, Mr. Clarke's
inclusion of the idea in a 1979 novel brought it to popular attention and
helped launch a new field of study. He told New Scientist magazine last year
that it would be built "50 years after everyone stops laughing."

But it was his collaboration with Kubrick in the 1968 film that made him
internationally famous. The screenplay for "2001: A Space Odyssey" was based
on Mr. Clarke's 1951 short story "The Sentinel," and Mr. Clarke
simultaneously wrote the companion novel, which was released three months
after the film and was believed by many to be a more detailed explanation of
the ideas in the film.

Mr. Clarke's work inspired the names of spacecraft, an asteroid and a
species of dinosaur. He joined American broadcaster Walter Cronkite as a
commentator on the Apollo moonshots in the late 1960s. Two television series
in the 1980s spread his ideas around the world.

He was knighted in 1998, nominated for the Nobel Peace Prize in 1994 and
received the Franklin Institute gold medal, the United Nations Educational,
Scientific and Cultural Organization-Kalinga Prize and other honors.

Mr. Clarke, a resident of Sri Lanka since 1956, worked with Jacques Cousteau
and others to help perfect scuba equipment. He moved to the country, then
known as Ceylon, to open a dive shop and explore the undersea world.
Disabled by post-polio syndrome, the lingering effects of a disease that had
paralyzed him for two months in 1959, Mr. Clarke said diving was as close as
he could get to the weightless feeling of space.

"I'm perfectly operational underwater," he once said.

His dive shop was destroyed in the 2004 tsunami.

Born Dec. 17, 1917, in Minehead, Somerset, England, he was the son of a
postal service engineer turned farmer and a post office telegrapher. He
became addicted to science fiction at 11.

In 1936, he moved to London and joined the British Interplanetary Society
and began writing science fiction. After enlisting in the Royal Air Force in
1941, he became a radar instructor and participated in the development of
ground-controlled landings of aircraft under zero-visibility conditions.
That experience proved the inspiration for his only non-science-fiction
novel, "Glide Path."

It is also where, in 1945, he wrote an RAF memo about satellites. He later
revised it and submitted it as "Extra-Terrestrial Relays" to Wireless World,
which almost rejected it as too far-fetched. He was wrong about some things:
He expected that three satellites would take care of the world's
communication needs and that each would require a crew in residence.
After World War II, Mr. Clarke obtained a bachelor of science degree in
physics and mathematics at King's College, London.

In 1954, Mr. Clarke wrote to Harry Wexler, then chief of the Scientific
Services Division at the U.S. Weather Bureau, about satellite applications
for weather forecasting. From these discussions, a new branch of meteorology
was born.

Mr. Clarke's marriage to Marilyn Mayfield ended in divorce. Survivors
include a brother and sister, both of whom live in England.

According to a news release from the Arthur C. Clarke Foundation, Mr. Clarke
reviewed the final manuscript of his latest science fiction novel, "The Last
Theorem," a few days ago. It is scheduled to be published later this year.

Although he rarely left Sri Lanka, he kept in touch with the rest of the
world by using the satellite communication he predicted so long ago. He told
the Associated Press that he didn't regret never going into space because he
had arranged to have the DNA from his hair sent into orbit.

"Some day, some super civilization may encounter this relic from the
vanished species and I may exist in another time," he said.

In a 90th birthday video recorded in December, Mr. Clarke said he had only
three last wishes: That someone find evidence of extraterrestrial life; that
the world adopt clean energy sources; and that an end be found to the long
civil war in Sri Lanka.

"I'm sometimes asked how I would like to be remembered. I've had a diverse
career as a writer, underwater explorer, space promoter and science
populariser," he said. "Of all these, I want to be remembered most as a
writer -- one who entertained readers, and, hopefully, stretched their
imagination as well."

http://www.washingtonpost.com/wp-dyn/content/article/2008/03/18/AR2008031802346_2.html?hpid=moreheadlines
tony sayer
2008-03-19 09:50:00 UTC
Permalink
Post by Mike Terry
Sir Arthur C. Clarke's most famous prediction on the future is his proposal
of geostationary satellite communications published in the Wireless World
magazine in 1945. Not considered seriously at the time it became a reality
within 20 years with the launching on 1965 April 6th of Intelsat I
http://samadhi.jpl.nasa.gov/msl/QuickLooks/intelsat1QL.html Early Bird the
first commercial geostationary communication satellite.
Wonder if he'd have bothered seeing the outcome was thousands of
channels of junk TV ...
--
Tony Sayer
Karl Erik Christensen
2008-03-19 10:20:50 UTC
Permalink
Post by tony sayer
Wonder if he'd have bothered seeing the outcome was thousands of
channels of junk TV ...
I think you'd better watch some of them instead of posting here.
--
Med venlig hilsen
Karl Erik.
tony sayer
2008-03-19 17:55:22 UTC
Permalink
Post by Karl Erik Christensen
Post by tony sayer
Wonder if he'd have bothered seeing the outcome was thousands of
channels of junk TV ...
I think you'd better watch some of them instead of posting here.
Actually I prefer the radio via satellite;)...
--
Tony Sayer
Jim Watt
2008-03-19 21:18:26 UTC
Permalink
Post by tony sayer
Post by Karl Erik Christensen
Post by tony sayer
Wonder if he'd have bothered seeing the outcome was thousands of
channels of junk TV ...
I think you'd better watch some of them instead of posting here.
Actually I prefer the radio via satellite;)...
Do you know any fta country music channels?
(its for a friend)
--
Jim Watt
http://www.gibnet.com
tony sayer
2008-03-19 21:53:39 UTC
Permalink
Post by Jim Watt
Post by tony sayer
Post by Karl Erik Christensen
Post by tony sayer
Wonder if he'd have bothered seeing the outcome was thousands of
channels of junk TV ...
I think you'd better watch some of them instead of posting here.
Actually I prefer the radio via satellite;)...
Do you know any fta country music channels?
(its for a friend)
--
Jim Watt
http://www.gibnet.com
No sorry, only classic and Jazz ones:)..
--
Tony Sayer
Jim Watt
2008-03-20 12:41:03 UTC
Permalink
Post by tony sayer
Post by Jim Watt
Post by tony sayer
Actually I prefer the radio via satellite;)...
Do you know any fta country music channels?
(its for a friend)
--
Jim Watt
http://www.gibnet.com
No sorry, only classic and Jazz ones:)..
Very sensible. Country music is for ...
--
Jim Watt
http://www.gibnet.com

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