gary wrote:Well he never produced a working version (for obvious reasons), but he did have a (not entirely original) design and he DID contribute to the technology.
Hi Gary
Yes been covered a few times here he does interest me just because he had an interest in television working or not and he has sort of turned into an Australian inventor legend ,I do wonder if a prototype was ever made different reports on this below on it being demonstrated but you would think it would be in the news papers of the time which i have not tracked down as of yet ...also the report it was in Scientific American magazine again i have yet to find it .
He claimed in the late 1880s to have designed, but not constructed, an apparatus that would transmit to Ballarat the running of the Melbourne Cup seems more than likely since there are plans but no other evidence /Then you get other reports where they go into detail of the event Again i would like to see a news paper report at least .....Telephane......Telefane.....
1885: Henry's invention of the Telephane was the forerunner to television 3 years before John Logie Baird was born. Around 1871 at the age of fifteen Henry invented a method so that any big event in Melbourne could be seen in Ballarat by medium of the telegraph. Henry was so sure of this that he wrote the particulars to Mr R.L.J. Ellery, Government Astronomer of Victoria, so the invention could be in the hands of someone capable of stating his claim of being the first in this direction. Some years later, in 1885, Mr R.L.J. Ellery was witness to the transmission of the images of the Telephane. In 1885 Henry transmitted the Melbourne Cup race to Ballarat through the Telephane. It was stated that it worked quite well. Henry a few years later in 1890 went to England and France and demonstrated the Telephane to the scientific community. Henry's paper on the Telephane was published in England, France and America and Scientific America republished his paper again in 1910. Henry did not patent the Telephane but Baird did use Henry's principles to invent television some 43 years later. The Telephane is considered to be Henry's magnum opus by some people.
In 1890, Sutton went to England and demonstrated the telephane to the scientific community. In 1892, after a meeting with Nikola Tesla, Sutton started working on a theory that would allow him to send images wirelessly. Sutton's paper on the telephane was published widely, and Scientific American republished it in 1910. Sutton did not patent the telephane, but John Logie Baird used Sutton's principles to invent television almost 40 years later.
The electromagnetic spectrum has no theoretical limit at either end. If all the mass/energy in the Universe is considered a 'limit', then that would be the only real theoretical limit to the maximum frequency attainable.