John Playfair

(redirected from Playfair)
Also found in: Wikipedia.

Playfair, John,

1748–1819, Scottish mathematician, physicist, and geologist. He was educated at St. Andrews and Edinburgh and taught first mathematics and then physics and astronomy at the latter university. His Illustrations of the Huttonian Theory of the Earth (1802) elucidated the methods and principles of his friend James Hutton and established uniformitarianism as the foundation of the new science of geology. He also published texts on geometry, physics, and astronomy.
The Columbia Electronic Encyclopedia™ Copyright © 2013, Columbia University Press. Licensed from Columbia University Press. All rights reserved.
References in periodicals archive ?
Release date- 12082019 - Playfair has successfully completed field collection of 1,050 samples to evaluate 24 targets identified by an Artificial Intelligence (AI) evaluation of a historic mining district in Norway.
Playfair, Bourne enlisted a team of 80 porters who drove a food supply of sheep and goats and carried boxes of chemicals, glass plates, and a portable darkroom tent.
Transport for London tweeted regarding the incident: "Great West Road (westbound) at the junction of Nigel Playfair Avenue is closed due to a road traffic collision."
South Africa-born Prue, who is now married to John Playfair, took over from Mary Berry on Great British Bake Off in 2017 after the show's controversial switch from the BBC to Channel 4.
On popular demand, AEO Pakistan recently launched global migration opportunities powered by PLAYFAIR.
Prue and husband John Playfair, 72, have booked a week's fishing on the river Naver in the far north of Scotland for her 80th.
Accompanying Jenna will be Harris Playfair and Mr McFall's Chamber.
She married retired clothes designer John Playfair three years ago.
"He has no problem about gender, he doesn't mind holding my handbag" Great British Bake Off judge Prue Leith on her husband John Playfair.
"My dog could have won a better deal than those forelocktugging drones we sent out to battle Brussels" Jeremy Paxman "He has no problem about gender, he doesn't mind holding my handbag" Great British Bake-Off judge Prue Leith on her new husband John Playfair "I don't know whether I believe in the afterlife or not.
Dannii made it through to the final where she competed against 13-year-old Sara Playfair from Whitley Bay and Bryoni Askew, aged 16, from Consett.