Inventions
| Lighter vs. Box of matches:
Do you know that the lighter was invented BEFORE the matches?
| |
| Inventions
| The Electric Chair:
The electric chair is invented by the dentist Alfred P. Southwick, in 1881 after he witnessed an intoxicated man touch a live electric generator. After the man died quickly, Dr. Southwick concluded that the electricity could be used for executions alternative to hanging.
| |
|
Inventions
| Knifes and Forks:
The knife is 50 000 years older than the fork.
| |
| Inventions
| Pulsar...:
... is the first electronic watch. It's invented by Petar Petrov in 1969.
| |
|
Inventions
| The microwave oven:
The microwave oven did not come as a result of inventing a faster way of cooking. During World War II, two scientists invented the magnetron, a tube that produces microwaves. The idea to cook with microwaves was accidentally discovered by Percy LeBaron Spencer when he found that the radar waves had melted the candy bar in his pocket.The first commercial microwave (which was on the market 1954) was so large and expensive that was practical only for restaurants and institutional use.
| |
| Inventions
| =:
The equal sign "=" is invented by Welshman Robert Recorde in 1557. He got sick of writing "equals to" every time.
| |
|
Inventions
| Scissors...:
... are invented by Leonardo da Vinci.
| |
| Inventions
| Can opener:
The can opener is invented 48 years after the can.
| |
|
Inventions
| First condom:
The first condom that was patented was meant to be reusable.
| |
| Inventions
| QWERTY:
The QWERTY keyboard layout (called that way because these are the first letters of the second row of the keyboard) was invented in the 1870s by Christopher Sholes. The story says that Sholes arranged the keys to be as hard as possible for writing since the keys got stuck with each other when writing rapidly. Other people think that the layout is almost perfect since the most used letters are all in one row and you shouldn't move your fingers much to type them.
| |
|
