*The greatest English scientist, who devoted himself to at¬mospheric physics, using mainly radio techniques.*In 1924 proved the existence of…

*The greatest English scientist, who devoted himself to at¬mospheric physics, using mainly radio techniques.*In 1924 proved the existence of thelayer in the upper atmosphere now called the ionosphere.*Invented the method called “frequen¬cy-modulated radar” , which led to a great development of radio research.*In 1926 discovered a further atmos¬pheric layer 150 miles above ground, which reflects short waves round the earth.*In 1941 was knighted for the develop¬ment of radiolocation.