February 4, 2021

Benzene: The Dream of Kekule:

Continuing the subject of dreams, it is pertinent to mention that lucid dreams had helped many to make great discoveries and inventions. Since my subject is chemistry, I will touch upon one such famous dream which laid the foundation for understanding the structure and chemistry of  aromatic compounds. As every one versed with chemistry knows, the benzene is the starting compound of aromatic compounds. Its structure was derived by Kukule’. His full name was Friedrich August KekulĂ© von Stradonitz. Benzene was analyzed to have 6 carbon and 6 hydrogen atoms. Existing formula of all the organic compounds did not fit… Read More »Benzene: The Dream of Kekule:

Aloe vera

Aloe has a very long history of use. The sap was used medicinally by the Greeks and Romans, who obtained it from the island of Socotra. The Greek physician Dioscorides recorded the use of the leaves to treat wounds in the first century AD. Aloe had reached England by the 10th century, where it appears to have been one of the drugs recommended to Alfred the Great by the Patriarch of Jerusalem. In the early part of the 17th century, the records of the East India Company show payments for aloe being made to the King of Socotra, who held… Read More »Aloe vera