Hairy cell leukemia (HCL) 1  Is a type of blood cancer that begins in the bone marrow. 2  Is a rare type of leukemia in adults.  Hairy cell leukemia gets its name from the short, thin projections that look like hair on its cells.
In 1799 Humphrey Davy discovered anesthetic properties of nitrous oxide (N20)---also known as laughing gas.. He had recently joined Thomas Beddoesâ Pneumatic Institution (established 1798) for treatment of disease by inhalation.
By Arthur K Burditt on March 20, 2013. Wind speed is measured by a device called an anemometer, which comes from the Greek word for wind âanemosâ. Italian art architect, mathematician and renaissance man Leon Battista Alberti invented the first mechanical anemometer in 1450.His instrument consisted of a disk placed perpendicular to the wind.nglishman Robert Hooke re-invented the anemometer in 1664 and often is mistakenly credited as its first inventor. In 1846, Irish researcher John Thomas Romney Robinson invented the hemispherical cup anemometer which is still used today. Geologist Dr. Andreas Pflitsch invented a sonic anemometer in 1994.