1999
they invented the first transistor:)
brazil invented the first photocopier machine
Benjamin Franklin is credited with proposing the concept of positive and negative charges in the 18th century while conducting experiments with electricity.
In 1902 Willis H Carrier invented the modern air conditioner.
Yes, Fahrenheit's scale was the first of the five main scales.
Euclid
William Henry Fox Talbot invented the first paper negative in 1835. This invention played a crucial role in the development of photography, allowing multiple prints to be made from a single negative.
Assuming you mean the first to be made permanent, that would be Joseph Nicéphore Niépce, circa 1826.
The first time somebody bought or traded something on credit, and said "I'll owe ya the rest."
She he invented the photographic print and the negative washing machine.He invented the photographic print and the negative wash machine!
india
Connect positive first and negative last.Connect positive first and negative last.
The first train was invented in 1814,and the first car was invented in 1672. So, the car was first invented.
The wright brothers invented the first airoplane
Who invented the first stagecoach?
Who invented the first hygrometer?
Where invented the first plane?