On January 6, 1838, Samuel Morse gave the first public demonstration of the electric telegraph at New Jersey’s Speedwell Iron Works. The message, “a patient waiter is no loser”, tapped in code along two miles of cotton-covered wire, capped one of the most important…
On January 5, 1874, American neurophysiologist Joseph Erlanger was born. Studies in chemistry, research, and medicine at Johns Hopkins gained him an internship with William Osler in internal medicine. Within the year, Erlanger became more interested in research and teaching than in practicing medicine.…
On December 29, 1863, cardiologist Wilhelm His Jr. was born in Basel, Switzerland. He was the son of a Swiss embryologist who constructed the first microtome, a tool that cuts extremely thin slices or sections of material for microscopic examination. Why the heart beats…
On December 28, 1895, the Lumière brothers, Auguste and Louis, unveiled their Cinématographe for the first time to the public. Paris was filled with the buzz and excitement about the event because up until now it had only been shown at private screenings. Almost…
On December 15, 1612, astronomer Simon Marius [Mayr or Mayer] became the first modern observer to locate and describe the Andromeda galaxy. Telescopy being in its infancy, however, he detailed how its shape to his eye appeared like that of a candle flame. The…
On December 14, 2016, the Geminids meteor shower is on schedule! This extended meteor shower is visible to night sky observers around the world for about two weeks from its annual “return” to Earth’s point of view. Unlike other meteor showers that have been…
On November 23, 1898, American biochemist Rachel Fuller Brown was born. Most famously, she worked through research and production projects with microbiologist and bacteriologist Elizabeth Lee Hazen for the New York State Department of Health; Brown in Albany and Hazen in New York City.…
On July 15, 1943, British astrophysicist Jocelyn Bell Burnell was born. As a research student, Bell Burnell assisted in the physical construction and operation of a Cambridge university radio telescope, consisting of thousands of poles wired and cabled over several acres of land. Additionally,…
Right to the Core On June 4, 1889, geophysicist and mathematician Beno Gutenberg was born and made the study of Earth’s interior his life’s work. He was the first to determine the radius of Earth’s core. Perhaps the most important information geologists gather about…
On May 2, 1497, John and Sebastian Cabot set sail from Bristol, England, financed by Italian banks and authorized by Henry VII to find and investigate new lands. Cabot father and son reached a new found land on June 24th. Thinking it to be…