The concept of photosynthesis was first explored by Dutch physician Jan Baptista van Helmot in 1648 during an experiment involving a willow tree. Helmot discovered that plants did not get their nutrients from the soil. However, it took several other botanists and scientists to unravel the process of photosynthesis.
Joseph Priestley, a chemist, discovered that air was composed of gases. In 1730, Dutch biologist Jan Ingenhousz reported that plants produced oxygen. Further discovery was made by Jean Senebier, a Swiss botanist, who uncovered the role of carbon dioxide in photosynthesis. It wasn't until 1845 that Swiss chemist Nicolas-Theodore de Saussure was able to finally draw all the pieces of photosynthesis together.Learn More
The earliest known use of crutches dates back to the early days of recorded history, so it is impossible to pinpoint a single inventor. However, several innovators are responsible for the modern crutch design.Full Answer >
Tycho Brahe was an astronomer who, through careful observation, recorded and discovered the visible orbit of heavenly bodies across the night sky. Brahe is also credited with providing data that disproved the early 16th-century theory that the heavens are static.Full Answer >
Sir Isaac Newton received several honors including knighthood, the consideration as the top mathematics professor at Cambridge, a seat in Parliament and the Lucasian Chair of Mathematics at Cambridge. Sir Isaac Newton was a mathematician, astronomer, philosopher, scientist and physicist that lived from 1643 to 1727.Full Answer >
Although no specific person has ever been credited with the invention of glass windows, the first known use of glass in windows was during the Roman Empire. This likely occurred in about 100 C.E. in Roman-occupied Alexandria.Full Answer >