Sorry to disillusion you ..

http://www.radarworld.org/america.html

--
-jeff

"The_navigator©" wrote in message ...
1940? I don't think so, the US didn't have a working cavity magnetron
until it was taken there!

Cheers MC

Jeff Morris wrote:

In 1940 the American technology was the equal of the British for the longer 1 meter
wavelength. But they were not deployed in the same numbers as the British.

I'm not saying the British were not major players in this field. But you implied that
Radar would not have existed without the British - this is clearly a myth!


"The_navigator©" wrote in message
...

Bwhahahahha. Who built the first radar array? Did the US even have an
array?


Cheers MC

Jeff Morris wrote:

We were spending
billions of dollars developing Radar to save Britain.

Sorry, the Brits didn't invent the cavity magnetron, there were patents on it years before. They
did build one 100 times more powerful than others, which made them usable in a lot of applications.

BTW, what kind of x-ray optics do you work on?

--
-jeff

"Parallax" wrote in message
om...
The_navigator© wrote in message ...
How about this;

Boston 1873:

A man about forty-six years of age, giving the name of Joshua
Coppersmith, has been arrested in New York for attempting to extort
funds from ignorant and superstitious people by exhibiting a device
which he says will convey the human voice over metallic wires, so that
it will be heard by the listener at the other end. He calls the
instrument a "telephone", which is obviously intended to imitate the
word "telegraph", and win the confidence of those who know of the
success of the latter instrument without understanding the principles on
which it is based. Well-informed people know that it is impossible to
transmit the human voice over wires as may be done with dots and dashes
and signals of the Morse Code, and that were it possible to do so, the
thing would be of no practical value. The authorities who apprehended
this criminal are to be congratulated, and it is to be hoped that it may
serve as an example to other conscienceless schemers who enrich
themselves at the expense of their fellow creatures.

Cheers MC

Bobsprit wrote:

Congrats, MC!!!

You just won the Nobel prize for DULLEST POST EVER ON THE INTERNET.

RB

As far as I know, the brits did invent the cavity magnetron. Many ppl
think that the atom bomb was the most significant hi-tech invention
during ww2 but it was really the cavity magnetron which really made
radar (and micro-wave ovens) practical.

HOWEVER, I will sorta put up two quotes from the eminent brit
physicist Lord Kelvin of the 1890's.

"These so-called X-rays will be shown to be a fraud"
this is my fav since I make x-ray optics.

Kelvin also reccomended that young men not enter physics as "all
important physics has been done except for a few minor problems in
electromagnetic theory" (or something like that). It was those few
problems in E&M theory that led to relativity theory (Equations for
E&M waves were not invariant under Galilean transformation. Einstein
used the Lorentz transform that had been suggested to explain the
Michelson Morley experiment to make them invariant).

In both cases, the Brit (Kelvin) was trumped by Germans. Kelvin was
still one of the greats, in spite of being wrong.

Now, how does this apply to sailing?

"Jeff Morris" wrote in message news:LG6dnaYU-5nxTBaiU-
BTW, what kind of x-ray optics do you work on?


I found your web site - neat stuff! I used to work on the Einstein Observatory. Did you
ever get involved in that end of things?

-jeff

"Jeff Morris" jeffmo@NoSpam-sv-lokiDOTcom wrote in message ...
"Jeff Morris" wrote in message news:LG6dnaYU-5nxTBaiU-
BTW, what kind of x-ray optics do you work on?


I found your web site - neat stuff! I used to work on the Einstein Observatory. Did you
ever get involved in that end of things?

-jeff

hello Jeff:

Never did any x-raqy astronomy work. My previous life was all defense
stuff. Protecting US satellites from Soviet nuclear pumped x-ray
lasers (wont work).

Now, we make x-ray spectrometers for electron microscopes.

How did you find our web site anyway?
www.parallax-x-ray.com

The navigator© wrote:

I'd say the US knows a gift when they see it?


Sometimes. Some Morris & MG sedans brought over had Hydrolastic (sp?)
suspension that I thot a great advance. Basically all four wheels were
suspended each by a "bag" containing plain water and antifreeze. The
bags on each side were connected via an orifice. In effect the front
held up the back and vice versa with the orifice providing dampning.
When one hit a bump *both* ends when up half the amount it would have
done with conventional spring/shocks providing a much improved ride,
especially on choppy roads. Moreover, the car didn't lean when cornering
since the fluid on the off side had nowhere to go, providing good
handling despite a plush ride.

Their front-drive cross engine congiguration survives in almost every
car currently made but somehow the simple but effective suspension never
caught on and I know of no cars using such a suspension today.

"Parallax" wrote in message
How did you find our web site anyway?
www.parallax-x-ray.com

A Group Google on your authorship revealed a lot of interesting posts!

The British had the same in 1935 -5 years earlier than the USA...

Cheers MC

Jeff Morris wrote:

Sorry to disillusion you ..

http://www.radarworld.org/america.html

--
-jeff

"The_navigator©" wrote in message ...

1940? I don't think so, the US didn't have a working cavity magnetron
until it was taken there!

Cheers MC

Jeff Morris wrote:


In 1940 the American technology was the equal of the British for the longer 1 meter
wavelength. But they were not deployed in the same numbers as the British.

I'm not saying the British were not major players in this field. But you implied that
Radar would not have existed without the British - this is clearly a myth!


"The_navigator©" wrote in message
...


Bwhahahahha. Who built the first radar array? Did the US even have an
array?


Cheers MC

Jeff Morris wrote:


We were spending
billions of dollars developing Radar to save Britain.

They did have the Ubitron.

A far superior device!

"The_navigator©" wrote in message
...
1940? I don't think so, the US didn't have a working cavity magnetron
until it was taken there!

Cheers MC

Jeff Morris wrote:

In 1940 the American technology was the equal of the British for the
longer 1 meter
wavelength. But they were not deployed in the same numbers as the
British.

I'm not saying the British were not major players in this field. But
you implied that
Radar would not have existed without the British - this is clearly a
myth!


"The_navigator©" wrote in message
...

Bwhahahahha. Who built the first radar array? Did the US even have an
array?


Cheers MC

Jeff Morris wrote:

We were spending
billions of dollars developing Radar to save Britain.

bwhahahhahahahahhahaha. Another post war British invention!

Cheers MC

Myron Florin wrote:
They did have the Ubitron.

A far superior device!

"The_navigator©" wrote in message
...

1940? I don't think so, the US didn't have a working cavity magnetron
until it was taken there!

Cheers MC

Jeff Morris wrote:


In 1940 the American technology was the equal of the British for the

longer 1 meter

wavelength. But they were not deployed in the same numbers as the

British.

I'm not saying the British were not major players in this field. But

you implied that

Radar would not have existed without the British - this is clearly a

myth!


"The_navigator©" wrote in message
...


Bwhahahahha. Who built the first radar array? Did the US even have an
array?


Cheers MC

Jeff Morris wrote:


We were spending
billions of dollars developing Radar to save Britain.

J.D. Jackson "Classical Electrodynamics" (undergrad EM text at CalTech)
page 363:
in footnote to Schumann resonances discussing Nikola Tesla in Colorado
Springs: "this remarkable genius clearly outlines the idea of the earth as a
resonating circuit (he did not know of the ionosphere), estimates the lowest
resonant frequency a 6 Hz (close to the 6.6 Hz for a perfectly conducting
sphere), and describes generation and detection of these low frequency
waves"

and straight from the horse's mouth, "Experiments with Alternate Currents of
High Potential and High Frequency" including the Appendix "Transmission of
Electric Energy Without Wires" , Nikola Tesla, 1904, pp 149-162 describe in
detail how Tesla made these measurements in the 1890's.

JD Jackson is a well respected authority on Electromagnetics. Tesla's book
was published in 1904.

The principles of radar were clearly demonstrated and used to calculate the
resonance of the earth (using time of flight of low frequency radio signals)
and the distance from Tesla's lab to the Rocky Mountain foothills.


"The_navigator©" wrote in message
...
Riiiiiiight.

Cheers MC

Myron Florin wrote:

The first reporter observation of radar effects (radio ranging) occured
in
the 1890's in Colorado Springs, Colorado. With the same principles, the
Schumann resonances of the earth were first discovered and measured.


"The_navigator©" wrote in message
...

Bwhahahahha. Who built the first radar array? Did the US even have an
array?


Cheers MC

Jeff Morris wrote:

We were spending
billions of dollars developing Radar to save Britain.