Here are some of the most spectacular inventions and discoveries that changed the way people did things.
Science has been of great help to the people. Below are some of the great things that were discovered and invented by famous people around the world.
With the discovery “anaesthesia”, people conquered pain. It made some of the most dangerous medical operations to be possible without further hurting the patient. The term was coined by Oliver Wendell Holmes, Sr. in the year 1846. The original definition of this term is “the blockage of sensation” but could also be defined as, “reversible lack of awareness”. Actually, anaesthesia was already used in the pre-historic times. Even in the year 4200 B.C., opium poppy was collected to make it as a herbal anesthesia.
This method is used to accurately identify the age of a certain object. This was developed by Willard Libby and his colleagues at the University of Chicago in the year 1949. He received a Nobel Price in Chemistry for his work and achievements. Although,a more accurate figure was found out, most scientist prefer to use the Libby figure to avoid inconsistencies of the previous informations published.
Blood Circulation System
It was in the year 1242 that an Arabian physician accurately described the human circulatory system. Although some of the earliest people already had the thought of the system, it was in the year 1628 that William Harvey announced that the discovery of the human circulatory system was his. He performed several tests and wrote an influential book, and these convinced the medical world to believe in the genuineness of the discovery. Harvey was not able to identify the capillary system connecting arteries and veins; these were later described by Marcello Malpighi.
The discovery of the DNA was made by the Swiss physician Friedrich Miescher. It was first called as a “nuclein” because it resides in the nuclei of a cell. The first correct image of the DNA was made as a suggestion by James D. Watson and Francis Crick based on image diffraction done by Rosalind Franklin. DNA is the blue print of a person because it holds the instructions how to build up some of the components of the other cells.