Nothing. Accidents had to be analyzed just from physical data at site, radar track, and last radio contact. It was hard to be accurate as to cause.
it was senetor black
Igor Sikorsky co. did.
The flail is a prehistoric invention. We can only infer that it was created where grain was first cultivated.
Iowa State.
They were short, silent, and black and white.Color movies began about 1939. "Talkies" appeared in 1928. The first "full length" motion picture is usually said to be "Birth of a Nation" in 1915. There were only movies from about 1890, after Edison invented the process. It was such a novelty that audiences were entranced by just about anything.
The black box was invented in Australia by David Warren in 1953 and were produced in 1957.
Australia
The Black Box was invented in 1953 and production by 1957
The black box flight recorder became mandatory after a mid air collision over the Grand Canyon in 1956. There were no survivors and no one knew what actually happened.
A black box flight recorder records various information from a commercial flight. A single black box recorder costs around $60,000.
There are two types of black boxes aka flight recorder, the flight data recorder (FDR) and the cockpit voice recorder (CVR).
Black box
The 'Black Box' .The Black Box Flight Recorder is part of modern aircraft equipment as we still have air crashes. The other side of the flight data recorder is the flight deck voice recorder. Although most people still talk about a black box in fact it is painted bright orange to stand out from other parts of a crashed aircraft.
Invented in 1953 by Australian Dr David Warren, the modern day black box recorder was used to recorded pre-crash conversation. The product was in production by 1957.
The Black Box is a small orange coloured box situated in the cockpit of the plane. It has two components. They are Flight data recorder and Cockpit Voice recorder.
The "Black box".
Black Box