Historians do not know for sure just how fire was discovered, but most believe that humans first saw fire after lightning struck a tree during the Lower Paleolithic age. Soon, humans discovered that it was possible to not only use the flame for heat and light, but also to cook food.Know More
Many historians believe that the very first evidence of controlled fire being used by humans was seen during the Lower Paleolithic age at a site known as Gesher Benot Ya'aqov, located in Israel. It was here that researchers found wood and seeds that had been charred. Later it was found that this site was over 790,000 years old.
Not all scientists believe that the Gesher Benot Ya'qov site was the first example of controlled fire. Others believe that the first sign of controlled fire was at Zhoukoudian, which is a Lower Paleolithic site in China dated close to 400,000 years ago. Others believe that the first sign of controlled fire is at Qesem Cave in Israel, which dates back between 200,000 and 400,000 years.
It was not until the Middle Paleolithic age that a hearth was used. A hearth is a simple fireplace that is made from a circle of stones or by simply reusing the same area many times to build a fire. Some hearths are believed to be over 125,000 years old.Learn more about Chemistry
It is difficult to determine the exact location of the discovery of silver because it has been used since ancient times. Although the origins of silver are unclear, Archaeological finds do show that it has been used by people to craft decorative items, silverware and jewelry for around 5,000 years.Full Answer >
Radium was discovered in 1898 by the Polish chemist Marie Sklodowska Curie, and a French chemist named Pierre Curie. Radium was discovered in an uranite sample after the uranium was removed, resulting in only radium remaining.Full Answer >
Beryllium was discovered in 1798 by scientist Abbé Haüy. Until its discovery in 1798, it was assumed that emeralds and beryl were composed of different substances.Full Answer >
According to EthanolHistory.com, evidence from pottery believed to have originated 9,000 years ago suggests that Neolithic people in Northern China discovered ethanol and consumed alcoholic beverages. In the first century A.D., the Greeks and the Arabs discovered distillation, a process to increase the ethanol content of alcoholic drinks.Full Answer >