Inventors killed by their own inventions

1.Sylvester H. Roper

                              

a tailor, fell to his death off the first deck of the Eiffel Tower while testing his invention, the coat parachute. It was his first attempt with the parachute, and he had told the authorities he would first test it with a dummy.

2.  Franz Reichelt (1879–1912)

                                                           

a tailor, fell to his death off the first deck of the Eiffel Tower while testing his invention, the coat parachute. It was his first attempt with the parachute, and he had told the authorities he would first test it with a dummy.

3. Aurel Vlaicu (1882–1913)

                                             

 died when his self-constructed airplane, Vlaicu II, failed during an attempt to cross the Carpathian Mountains by air

4. Henry Smolinski (died 1973) 

                                                    

was killed during a test flight of the AVE Mizar, a flying car based on the Ford Pinto and the sole product of the company he founded.

5.  Alexander Bogdanov (22 August 1873 –7 April 1928)

                                                  

  was a Russian physician, philosopher, science fiction writer and revolutionary of Belarusian ethnicity who experimented with blood transfusion, attempting to achieve eternal youth or at least partial rejuvenation. He died after he took the blood of a student suffering from malaria and tuberculosis, who may have also been the wrong blood type.

    6 .Valerian Abakovsky (1895–1921)

                                                               

constructed the Aerowagon, an experimental high-speed railcar fitted with an aircraft engine and propeller traction; it was intended to carry Soviet officials. On 24 July 1921, a group led by Fyodor Sergeyev took the Aerowagon from Moscow to the Tula collieries to test it, with Abakovsky also on board. They successfully arrived in Tula, but on the return route to Moscow the Aerowagon derailed at high speed, killing everyone on board, including Abakovsky (at the age of 25)

    7.Thomas Midgley, Jr. (1889–1944)

                                                                

was an American engineer and chemist who contracted polio at age 51, leaving him severely disabled He devised an elaborate system of ropes and pulleys to help others lift him from bed. He became accidentally entangled in the ropes and died of strangulation at the age of 55. However, he is better known for two of his other inventions: the tetraethyl lead (TEL) additive to gasoline, and chlorofluorocarbons (CFCs)