The year 1625 in science and technology involved some significant events.

Chemistry

* First description of hydrogen by Johann Baptista van Helmont. First to use the word "gas". * Johann Rudolf Glauber discovers

sodium sulfate Sodium sulfate (also known as sodium sulphate or sulfate of soda) is the inorganic compound with formula Na2SO4 as well as several related hydrates. All forms are white solids that are highly soluble in water. With an annual production of 6 milli ...

(''sal mirabilis'' or "Glauber's salt", used as a laxative) in Austrian spring water.

Births

* June 8 – Giovanni Cassini, Italian astronomer (died

1712 In the Swedish calendar it began as a leap year starting on Monday and remained so until Thursday, February 29. By adding a second leap day (Friday, February 30) Sweden reverted to the Julian calendar and the rest of the year (from Saturday, M ...

) * March 25 –

John Collins John Collins may refer to: Arts and entertainment * John Collins (poet) (1742–1808), English orator, singer, and poet * John Churton Collins (1848–1908), English literary critic * John H. Collins (director) (1889–1918), American director an ...

, English mathematician (died

1683 Events January–March * January 5 – The Brandenburger Gold Coast, Brandenburger—African Company, of the German state of Brandenburg, signs a treaty with representatives of the Ahanta people, Ahanta tribe (in what is now Ghan ...

) * August 13 – Rasmus Bartholin,

Danish Danish may refer to: * Something of, from, or related to the country of Denmark People * A national or citizen of Denmark, also called a "Dane," see Demographics of Denmark * Culture of Denmark * Danish people or Danes, people with a Danish ance ...

scientist (died

1698 Events January–March * January 1 – The Abenaki tribe and Massachusetts colonists sign a treaty, ending the conflict in New England. * January 4 – The Palace of Whitehall in London, England is destroyed by fire. * January 23 – G ...

) * December 16 –

Erhard Weigel Erhard Weigel (16 December 1625 – 20 March 1699) was a German mathematician, astronomer and philosopher. Biography Weigel earned his M.A. (1650) and his habilitation (1652) from the University of Leipzig. From 1653 until his death he was profe ...

German German(s) may refer to: * Germany (of or related to) **Germania (historical use) * Germans, citizens of Germany, people of German ancestry, or native speakers of the German language ** For citizens of Germany, see also German nationality law **Ger ...

mathematician and scientific populariser (died

1699 Events January–March * January 5 – A violent Java earthquake damages the city of Batavia on the Indonesian island of Java, killing at least 28 people * January 20 – The Parliament of England (under Tory dominance) limits the size ...

) * December 20 – David Gregory,

Scottish Scottish usually refers to something of, from, or related to Scotland, including: *Scottish Gaelic, a Celtic Goidelic language of the Indo-European language family native to Scotland *Scottish English *Scottish national identity, the Scottish ide ...

physician and inventor (died

1720 Events January–March * February 10 – Edmond Halley is appointed as Astronomer Royal for England. * January 21 – Sweden and Prussia sign the Treaty of Stockholm (Great Northern War). * February 17 – The Treaty of ...

) * Samuel Morland, English inventor (died

1695 It was also a particularly cold and wet year. Contemporary records claim that wine froze in the glasses in the Palace of Versailles. Events January–March * January 7 (December 28, 1694 O.S.) – The United Kingdom's last joint monarch ...

)

Deaths

* March 7 –

Johann Bayer Johann Bayer (1572 – 7 March 1625) was a German lawyer and uranographer (celestial cartographer). He was born in Rain, Lower Bavaria, in 1572. At twenty, in 1592 he began his study of philosophy and law at the University of Ingolstadt, a ...

, German uranographer (born

1572 Year 1572 ( MDLXXII) was a leap year starting on Tuesday (link will display the full calendar) of the Julian calendar. Events January–June * January 16 – Thomas Howard, 4th Duke of Norfolk, is tried for treason, for his part ...

) * April 7 – Adriaan van den Spiegel, Flemish-born anatomist and

botanist Botany, also called , plant biology or phytology, is the science of plant life and a branch of biology. A botanist, plant scientist or phytologist is a scientist who specialises in this field. The term "botany" comes from the Ancient Greek wo ...

(born

1578 __NOTOC__ Year 1578 (Roman numerals, MDLXXVIII) was a common year starting on Wednesday (link will display the full calendar) of the Julian calendar. Events January–June * January 31 – Battle of Gembloux (1578), Battle of Ge ...

) * May 6 – George Bruce of Carnock, Scottish coal mining engineer (born c.1550) *

Ferrante Imperato Ferrante Imperato (1525? – 1615?), an apothecary of Naples, published ''Dell'Historia Naturale'' (Naples 1599) and illustrated it with his own cabinet of curiosities displayed at Palazzo Gravina in Naples; the engraving became the first pict ...

Neapolitan Neapolitan means of or pertaining to Naples, a city in Italy; or to: Geography and history * Province of Naples, a province in the Campania region of southern Italy that includes the city * Duchy of Naples, in existence during the Early and Hig ...

natural historian (born

1550 __NOTOC__ Year 1550 ( MDL) was a common year starting on Wednesday (link will display the full calendar) of the Julian calendar. Events January–June * January 6 – Spanish Captain Hernando de Santana founds the city of Vall ...

) * Willem Schouten, Dutch navigator, died at sea (born c.

1567 __NOTOC__ Year 1567 ( MDLXVII) was a common year starting on Wednesday (link will display the full calendar) of the Julian calendar. Events January–June * January – A Spanish force under the command of Captain Juan Pardo estab ...

)

References

{{reflist 17th century in science 1620s in science