In 1758 Benjamin Franklin and professor John Hadley discover that evaporation of alcohol and other volatile liquids, which evaporate faster than water, can cool down an object enough to freeze water. This eventually led to what we call air conditioning.
The exact date of when glass was first invented is uncertain, but it is believed to have been around 3500 BCE in Mesopotamia. The earliest glass artifacts were produced by heating sand and other natural materials to create a transparent material.
The first invented light source was fire, which was discovered by early humans through natural processes like lightning strikes or by rubbing rocks together. The exact date of this discovery is unknown, but it likely occurred thousands of years ago during the Stone Age.
Bubbles have been around for centuries, with the exact invention date unknown. However, the modern soap bubble was first produced in the 17th century by adding soap to water to create a film that traps air.
Invented by Proffesor Michael Anthony Principe and his accomplish Kosta Kolaj in 1983 and suitable for humans in 1996.
The earliest remaining writings regarding levers date from the 3rd century BC and were provided by Archimedes.The screw was one of the last of the simple machines to be invented. It first appeared in ancient Greece, and by the first century BC was used in the form of the screw press and the Archimedes screw, but when it was invented is unknown.
The first screw press was invented by the Romans, sometime in the first century AD. The exact date and the inventor are not known.
Mankind has been singing since we first evolved the ability to speak, so an exact date would be impossible to determine.
Well... tacos weren't discovered they were invented. They were made for the first time in Mexico in the 1400s the exact date is unknown.
No exact date, however, it was first used in China when they invented gun powder.
The very first Legend of Zelda was released in 1987. I forget the exact date.
1982
december 1891
1982
We do not know the exact date, or place. "Hand cannons"- a crude form of a handgun, were first used in battle about 1260 AD.
nov. 7 1997
The exact date that the trapezium was invented is currently unknown. However, it was invented by scientist and inventor Roger Cotes.
It's thought that Mexican silver miners were the first ones to make tacos. The exact person, or date of invention, is unknown.