[modeleng] Re: scottish inventions

>just as 
> well
> we had radar don't you think<
Radar wasn't invented by a Scot, although Watson-Watt got the credit. The 
first radar patent was in 1904 to Christian Hulsmeyer, a Dane, for his 
'Telemobiloscope'. The German company Gema started radar work in 1933: the 
German Navy had Seetakt radar in 1938, while the RN had to wait until late 
1941. The French liner Normandie had a radar in 1938 - albeit a CW one, 
not a pulse radar. At the outbreak of WW2, radar work was going on in the 
UK, US, Australia, Germany, Italy, France, Russia and Japan. The Japanese 
even had a cavity magnetron before Randall and Boot, but didn't realsi 
what they had or what it could be used for (very little on its own!)

Peter Chadwick
Swindon





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