Furthermore, the commissionâs findings showed that for women who were in senior positions, the types of positions they held were in areas such as human resources or research, which are not part of the usual pipeline or career pathway to executive positions.
Inventions of incandescent electric light bulb and of dry battery at the end of the 19th century enabled solution for this problem. First dry cell batter was invented in 1896. It was an improved variant of the previous version in that way that its electrolyte was a paste instead of liquid. Because of that, it could work in any position and it would not break or spill that easily. It was a perfect power source for a portable light source. In 1899, English inventor David Misell invented the first flashlight. It had three D batteries placed in a tube that acted as a handle of the device. Batteries powered a small incandescent electric light bulb and a simple contact switch turned light on and off.
The origin of the term flash and flashing are uncertain, but may come from the Middle English verb flasshen, 'to sprinkle, splash', related to flask.