The discovery of helium on Earth was made in the United Kingdom by Scottish chemist Sir William Ramsay in 1895. However, the element was first discovered on the sun by French astronomer Pierre Janssen.
During a solar eclipse in 1868, Janssen observed that the sun emitted a yellow wavelength that was unrecorded at that time. Another scientist, Sir Norman Lockyer, named the new element helium. Several years later, while subjecting the uranium-based mineral clevite to various acids in his London laboratory, Ramsay was able to collect helium for the first time. In 1904, Ramsay won the Nobel Prize in Chemistry for his contributions to the discovery of inert gases.Learn More
Rabies was discovered as a human disease by Girolamo Fracastoro, a 16th century Italian physician. The disease has been recognized as an animal disease for thousands of years. The rabies vaccine was developed in 1885 by Louis Pasteur.Full Answer >
The form of baking soda, or sodium bicarbonate as it is known today, was first produced by Nicolas Leblanc, a French chemist in 1791. It was first mass-produced in a factory in1846 by John Dwight and Austin Church in New York.Full Answer >
No one person can take credit for the discovery of math. However, mathematics has developed over time, and many people have contributed to its different fields or branches that include algebra, geometry and trigonometry.Full Answer >
Copper was one of the first metals man discovered and used, so no one is sure of the exact date of its discovery. Archaeologists have discovered copper tools and decorative items dating to 9000 B.C.Full Answer >