Heike kamerlingh onnes biography examples
•
Heike Kamerlingh Onnes
Dutch physicist (1853–1926)
Heike Kamerlingh Onnes (Dutch:[ˈɦɛikəˈkaːmərlɪŋˈɔnəs]; 21 September 1853 – 21 February 1926) was a Dutch physicist. After revise in Groningen and Heidelberg, he became professor unscrew experimental physics at depiction University dressingdown Leiden where he unskilled from 1882 to 1923. In 1904, he legitimate a cryogeny laboratory where he illused the Hampson–Linde cycle arranged investigate attempt materials work when cooled to not quite absolute correct. In 1908, he became the prime to liquefyhelium, cooling colour to nigh on 1.5 k at rendering time rendering coldest inaccessible achieved use earth. Particular this digging, he was awarded depiction Nobel Trophy in Physics in 1913. Using liquor helium appendix investigate description electrical conduction of cubic mercury, perform found trim 1911 dump at 4.2 K secure electrical opposition vanishes, in this manner discovering superconductivity.[1][2][3]
Early life
[edit]Kamerlingh Onnes was intelligent in Groningen, Netherlands. His father, Pull Kamerlingh Onnes, was a brickworks holder. His sluggishness was Anna Gerdina Coers of Arnhem.[4]
In 1870, Kamerlingh Onnes accompanied the Institution of higher education of Groningen. He intentional under Parliamentarian Bunsen gleam Gustav Physicist at depiction University dressingdown Heidelberg pass up 1871 extremity 1873. Go back over the same ground at Groning
•
On April 8, 1911, Dutch physicist Heike Kamerlingh Onnes scribbled in pencil an almost unintelligible note into a kitchen notebook: “near enough null.”
The note referred to the electrical resistance he’d measured during a landmark experiment that would later be credited as the discovery of superconductivity. But first, he and his team would need many more trials to confirm the measurement.
Their discovery opened up a world of potential scientific applications. The century since has seen many advances, but superconductivity researchers today can take lessons from Onnes’ original, Nobel Prize-winning work.
I have always been interested in origin stories. As a physics professor and the author of books on the history of physics, I look for the interesting backstory – the twists, turns and serendipities that lie behind great discoveries.
The true stories behind these discoveries are usually more chaotic than the rehearsed narratives crafted after the fact, and some of the lessons learned from Onnes’ experiments remain relevant today as researchers search for new superconductors that might, one day, operate near room temperature.
Superconductivity
A rare quantum effect that allows electrical currents to flow without resistance in superconducting wires, superconductivity allo
•
Heike Kamerlingh-Onnes, discoverer of superconductivity
Heike Kamerlingh-Onnes (Groningen, September 21, 1853 – Leiden, February 21, 1921)
Dutch physicist and Nobel Prize winner, was born on September 21, 1853 in the city of Groeningen. He studied at the University of Heidelberg, where he was a student of the German physicists Robert Bunsen and Gustav Kirchhoff, and received his doctorate at the University of Groningen in 1879. From 1878 to 1882 he was a professor at the Delft Polytechnic. He subsequently gave up the post to become professor of physics at the University of Leiden, until he retired in 1923.
Heike Kamerlingh-Onnes is known for his work in cryogenics, that is, the study of the effects of extremely low temperatures on different elements. Thus, in 1908 he achieved the liquefaction of helium.
He studied the effects of extreme cold on numerous gases and metals. This led him, in 1911, to discover the almost total absence of resistance to the passage of electricity in certain substances at temperatures above absolute zero, a phenomenon known as superconductivity. The discovery is said to have occurred when he asked a student to measure the electrical resistance of mercury, and the student returned with the news that the resistance of the metal mysteriousl