Invention of the Mass Spectrometer

Joseph John Thomson invented the mass spectrometer or parabola spectrograph in Cambridge, England in 1913. Continue reading

King Louis of Bavaria

King Louis II of Bavaria, Germany was crowned in 825. Continue reading

Pope Initiates First Christian Inquisition

Pope Gregory IX instituted the Papal Inquisition in 1231, to eradicate the Cathari and Waldensians heretics living in Italy and France. Continue reading

Development of Mechanical Wire-Drawing Equipment

Rudolf developed mechanical wire-drawing equipment in Nuremberg, Germany in 1350. Continue reading

Invention of the Jackhammer

Charles Brady King invented the pneumatic hammer in Detroit, MI, USA, in 1890. Continue reading

Andromeda Galaxy Described in Ancient Poem

Roman nobleman, Rufus Festus Avienus initially described Andromeda Galaxy, M31 in his fourth century astronomical poem Continue reading

Seattle Builds Underground Hydroelectric Plant

First underground hydroelectric plant was built in Snoqualmie Falls Continue reading

Alfred Nobel Invents Blasting Caps

Alfred Nobel, Swedish chemist invented blasting caps in 1865 Continue reading

King Afonso I of Portugal

King Afonso 1 (Afonso Henriques) of Portugal first used the title in 1139, Continue reading

Mass Spectrometer Analyzes Neon

A mass spectrometer analyzed neon atoms and found the natural element was composed of two isotopes, neon 20 and 22 by Francis William Aston, Continue reading