How Did the Name Escalator Come About?
Charles Seeberger created the word “escalator” in 1900, to coincide with his device’s debut at the Exposition Universelle. According to his own account, in...
Read More
Where Were Kites First Flown?
Where Were Kites First Flown? Kites have been used in Asia since time immemorial. Some evidence dates their invention at around 1,000 B.C. Kite flying has been a...
Read More
When Were Contact Lenses Invented?
When Were Contact Lenses Invented? Some say German glassblower F.A. Muller used Herschel’s ideas to create the first known glass contact lens in 1887. Other...
Read More
When Was the Stethoscope Invented?
When Was the Stethoscope Invented? The stethoscope was invented by a French doctor, René Théophile Hyacinthe Laënnec, in 1816. It consisted of a wooden tube and was...
Read More
When Was the Iron Lung Invented?
When Was the Iron Lung Invented? In 1670, English scientist John Mayow came up with the idea of external negative pressure ventilation. Mayow built a model consisting...
Read More