When was Anesthesia invented?
In 1839, Alfred Velpeau invented anesthesia. It is used in surgery to prevent the pain of patients with or without loss of consciousness and is given mainly through injection, inhaled… Read more »
In 1839, Alfred Velpeau invented anesthesia. It is used in surgery to prevent the pain of patients with or without loss of consciousness and is given mainly through injection, inhaled… Read more »
The chemist, HA Milton Blake of South Australia in the early 1930s produced a sun burn cream after experimentation. In 1936, the first sunscreen was invented by chemist Eugene Schueller,… Read more »