John Tyndall

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John Tyndall

John Tyndall

@ProfTyndall

Natural philosopher and mountaineer. My new biography THE ASCENT OF JOHN TYNDALL in paperback 23 July 2020. Alter ego @roland_jackson

Mostly London and Switzerland Katılım Ekim 2012
106 Takip Edilen380 Takipçiler
John Tyndall retweetledi
Michael D. Barton
Michael D. Barton@darwinsbulldog·
Transcription help: letter from Stanley to Tyndall (1880): "I suppose that the Telegraphic m[ee]t[in]g will take up the ev[en]ing—otherwise the Professor c[ou]ld be spared for an hour. [Please] do not take [pains] to answer, [as I shall] [???] that the [???] is [???]." #histsci
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John Tyndall
John Tyndall@ProfTyndall·
I see that my good friend Thomas Carlyle has been 'cancelled' by @TheLondonLib by having his bust removed, and the discounted Carlyle membership appears to have gone. I'm hoping my books won't be banned there.
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Diarmid Finnegan
Diarmid Finnegan@diarmidf·
Delighted to be involved in this @HeritageWeek event. I'll be talking about @ProfTyndall 's Belfast lecture, exactly 150 years since it was delivered... Unlike Tyndall's 2 hour talk, mine will be short. The rest of time will be filled with drama and music inspired by Tyndall.
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John Tyndall
John Tyndall@ProfTyndall·
Well, I'd never claim I discovered the greenhouse effect, as I made clear in my 1861 paper that Fourier and others have precedence. But I did provide experimental evidence for its physical mechanism. (Also I was probably born c.1822 rather than 1820).
The Royal Society@royalsociety

The greenhouse effect is the phenomenon that traps our Sun's heat in our atmosphere. It was first discovered by John Tyndall FRS (born #OnThisDay in 1820), and the intrepid Raghav heads into our archive to find out more about some portraits of John & his wife Louisa:

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John Tyndall
John Tyndall@ProfTyndall·
@lapogus1 @royalsociety @tomshula I wouldn't worry too much. It does effectively trap heat, making the atmosphere warmer than it would otherwise be, (because of slowing down heat loss). But the greenhouse analogy is indeed misleading, and the term wasn't used in my day anyway.
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lapogus
lapogus@lapogus1·
@royalsociety This is misinformation. The 'greenhouse effect' does not 'trap heat in our atmosphere'. It slows down heat loss, but does not stop it. The greenhouse analogy (glass roof) is a very poor one, and thermalisation is the key - @tomshula explains here: x.com/TomANelson/sta…
Tom Nelson@TomANelson

Tom Nelson Podcast #232: “Tom Shula and Markus Ott: The “Missing Link” in the Greenhouse Effect”" is now published. 00:00 Introduction and Background 00:39 Defining the Greenhouse Effect 02:27 Thermal Radiation and Energy Transport 03:34 Absorption and Emission Processes 04:56 Non-Radiative Processes 06:17 Radiative Transfer Theory 07:11 Behavior of Greenhouse Gases 12:57 Thermalization and Its Implications 19:09 Heat Transport in the Atmosphere 29:13 Historical Context and Radiative Transfer Models 35:03 Critique of Radiative Transfer Models 41:15 Heat Transport from Surface to Space 45:14 Role of Water Vapor and Other Gases 52:54 Summary and Key Findings 01:00:49 Debunking Greenhouse Gas Myths 01:02:06 Water Vapor's Role in Heat Transport 01:04:14 CO2 and Ozone Emissions 01:07:28 Engineering Perspective on Earth's Climate 01:08:21 Diurnal and Seasonal Cycles 01:10:59 Critique of One-Dimensional Climate Models 01:12:54 Thought Experiments on Earth's Rotation 01:15:13 Energy Dynamics of Earth 01:20:44 Global Climate Models and Their Flaws 01:29:44 Summary and Conclusions 01:39:21 Final Thoughts and Call to Action

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The Royal Society
The Royal Society@royalsociety·
The greenhouse effect is the phenomenon that traps our Sun's heat in our atmosphere. It was first discovered by John Tyndall FRS (born #OnThisDay in 1820), and the intrepid Raghav heads into our archive to find out more about some portraits of John & his wife Louisa:
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John Tyndall retweetledi
Roland Jackson
Roland Jackson@Roland_Jackson·
Just received my early copy of the new Henry Roscoe biography by Peter Morris and Peter Reed, which I enjoyed reading in draft. Available from OUP.
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Michael D. Barton
Michael D. Barton@darwinsbulldog·
Need help deciphering a word (or words) in an 1876 @ProfTyndall letter; he is referring to his newlywed, Louisa: "She is strong, tender, loving, [XXXX]—and the more I know of her the more profoundly does she make me feel her excellence". Any ideas? #histsci #TranscriptionTroubles
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John Tyndall
John Tyndall@ProfTyndall·
@kakape @philipcball Well, to be fair, I did say it was particles with a size 'but a very small fraction of the length of a wave of violet light' so I'm not sure that would include dust.
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Kai Kupferschmidt
Kai Kupferschmidt@kakape·
@ProfTyndall @philipcball Yes, I mean kinda. You did think it was dust particles or water vapour scattering the light when of course today we know it is the molecules of air themselves. But hey this was the 19th Century and all…
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Kai Kupferschmidt
Kai Kupferschmidt@kakape·
Giving a virtual talk this Tuesday on one of my favorite subjects: the color #blue. It’s organized by the inter-society color council and you can register here for free: iscc.org/event-5632112/…
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Roland Jackson
Roland Jackson@Roland_Jackson·
Rededication this afternoon of the gravestone of @ProfTyndall and Louisa in Haslemere, complete with reading of his poetry 1/2
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Keşfet

@TheLondonLib @melissaldickson @ConversationUK @HeritageWeek @darwinsbulldog @lapogus1 @royalsociety @tomshula