X
7
1.
Wilber 1 year ago
Wonderful! clapping
       
5
2.
Martin 1 year ago
Yay!
       
2
3.
Menaalmena 1 year ago
#7 she was Michael Nesmith's mom, he of The Monkees fame...
       
0
4.
Amos 1 year ago
heddy lamar was a spy!!! thats why she invented wireless stuff - actually nicola tesla was faster
       
3
5.
Calvin 1 year ago
“Hidden Figures” movie. A must watch.
       
27353641acute
belayclappingdance3dashdirol
drinksfoolgirl_craygirl_devilgirl_witch
goodgreenheartJC-LOLJC_doubledown
JC_OMG_signkisslaughingman_in_lmocking
mr47_04musicokroflsarcastic
sm_80tonguevishenka_33vomitwassat
yahooshoot

Marie Van Brittan Brown Invented The Home Security System

Marie Van Brittan Brown was a nurse and she is known for inventing the home security system. She lived in Queens and at the time, the crime rate was high and the police response was slow, so she didn’t feel safe at her home with her family. That is why she thought of a security system that would make her feel less vulnerable. Brown worked with her husband and attached a camera to the door which could be moved between a few peepholes to be able to see visitors of different heights. The camera was connected to the television monitor, so they could see the visitor while sitting in their bedroom. They also installed a microphone to be able to talk to the person behind the door. Closed-circuit television was invented during World War II, but the Browns were first to use it for a home security system. They filed a patent in 1966, citing Marie as lead inventor. It was approved three years later.

 

X
Inventions That Were Made By Women, But Not Many People Know About Their Contributions
>
6/25
<