Lux Legibilis

I wake from dreams and turning
     My vision on the height
I scan the beacons burning
     About the fields of night.

Each in its steadfast station
     Inflaming heaven they flare;
They sign with conflagration
     The empty moors of air.

The signal-fires of warning
     They blaze, but none regard;
And on through night to morning
     The world runs ruinward. — A.E. Housman in More Poems (1936)


There was a young fellow named Bright
Who travelled much faster than light.
     He set off one day,
     In a relative way
And came back the previous night. — Anonymous

Russell in Your Head-Roe (Re-Visited)

“Ordinary language is totally unsuited for expressing what physics really asserts, since the words of everyday life are not sufficiently abstract. Only mathematics and mathematical logic can say as little as the physicist means to say.” — Bertrand Russell, The Scientific Outlook (1931)


Previously pre-posted

Russell in Your Head-Roe — Bertrand Russell on mathematics
A Ladd Inane — Bertrand Russell on solipsism
Math Matters — Bertrand Russell on math and physics
Whip Poor Wilhelm — Bertrand Russell on Friedrich Nietzsche

Joule for Thought

No matter how efficient any physical device is (e.g. a computer or a brain) it can acquire one bit of information only if it expends 0.693kT joules of energy. — Information Theory: A Tutorial Introduction, James V. Stone, Sebtel Press 2015

Math Matters

“Physics is mathematical not because we know so much about the physical world, but because we know so little; it is only its mathematical properties that we can discover.” — Bertrand Russell, An Outline of Philosophy (1927), ch. 15, “The Nature of our Knowledge of Physics”

The Joys of Noise

Good noise, bad noise: White noise improves hearing

Summary: White noise is not the same as other noise — and even a quiet environment does not have the same effect as white noise. With a background of continuous white noise, hearing pure sounds becomes even more precise, as researchers have shown. Their findings could be applied to the further development of cochlear implants. — Good noise, bad noise, ScienceDaily reporting research from the University of Basel, 12xi2019.

Performativizing Papyrocentricity #50

Papyrocentric Performativity Presents:

Life LocomotesRestless Creatures: The Story of Life in Ten Movements, Matt Wilkinson (Icon 2016)

Heart of the MotherJourney to the Centre of the Earth: A Scientific Exploration into the Heart of Our Planet, David Whitehouse (Weidenfeld & Nicolson 2015)

LepidopterobibliophiliaBritish Butterflies: A History in Books, David Dunbar (The British Library 2012)

Minimal Manual – Georgisch Wörterbuch, Michael Jelden (Buske 2016)


Or Read a Review at Random: RaRaR

Performativizing Papyrocentricity #41

Papyrocentric Performativity Presents:

Touring the TowerPhysics in Minutes: 200 key concepts explained in an instant, Giles Sparrow (Quercus 2014)

Living with Rainbows – Miller’s Field Guide: Glass, Judith Miller (Octopus 2015)

Men on the Margins – Edgelands: Journeys into England’s True Wilderness, Paul Farley and Michael Symmons Roberts (Chivers 2011)

Sward and SorceryWatership Down, Richard Adams (1972) (posted @ Overlord of the Über-Feral)

Obscene ScreenNecro-Sluts from Satan’s Anus: Fifty Filthy Fester-Films to F*** You Up, Freak You Out and Feralize Your Fetidest Fantasies, Dr Joan Jay Jefferson (TransToxic Texts* 2015)


Or Read a Review at Random: RaRaR

(*TransToxic Texts is an infra-imprint of TransVisceral Books.)

Performativizing Papyrocentricity #37

Papyrocentric Performativity Presents:

Maths and Marmosets – The Great Mathematical Problems: Marvels and Mysteries of Mathematics, Ian Stewart (Profile Books 2013)

Be Ear Now – Sonic Wonderland: A Scientific Odyssey of Sound, Trevor Cox (Vintage 2015)

Exquisite Bulgarity – The Future of Architecture in 100 Buildings, Mark Kushner (Simon & Schuster 2015)

Stellar StoryDiscovering the Universe: The Story of Astronomy, Paul Murdin (Andre Deutsch 2014)

Terms of EndrearmentShe Literally Exploded: The Daily Telegraph Infuriating Phrasebook, Christopher Howse and Richard Preston (Constable 2007)


Or Read a Review at Random: RaRaR

This Mortal Doyle

Challenger chopped and changed. That is to say, in one important respect, Arthur Conan Doyle’s character Professor Challenger lacked continuity. His philosophical views weren’t consistent. At one time he espoused materialism, at another he opposed it. He espoused it in “The Land of Mist” (1927):

“Don’t tell me, Daddy, that you with all your complex brain and wonderful self are a thing with no more life hereafter than a broken clock!”

“Four buckets of water and a bagful of salts,” said Challenger as he smilingly detached his daughter’s grip. “That’s your daddy, my lass, and you may as well reconcile your mind to it.”

But earlier, in “The Poison Belt” (1913), he had opposed it:

“No, Summerlee, I will have none of your materialism, for I, at least, am too great a thing to end in mere physical constituents, a packet of salts and three bucketfuls of water. Here ― here” ― and he beat his great head with his huge, hairy fist ― “there is something which uses matter, but is not of it ― something which might destroy death, but which death can never destroy.”

That story was published just over a century ago, but Challenger’s boast has not been vindicated in the meantime. So far as science can see, matter rules mind, not vice versa. Conan Doyle thought the same as the earlier Challenger, but Conan Doyle’s rich and teeming brain seems to have ended in “mere physical constituents”. To all appearances, when the organization of his brain broke down, so did his consciousness. And that concluded the cycle described by A.E. Housman in “Poem XXXII” of A Shropshire Lad (1896):

From far, from eve and morning
  And yon twelve-winded sky,
The stuff of life to knit me
  Blew hither: here am I.

Now – for a breath I tarry
  Nor yet disperse apart –
Take my hand quick and tell me,
  What have you in your heart.

Speak now, and I will answer;
  How shall I help you, say;
Ere to the wind’s twelve quarters
  I take my endless way. (ASL, XXXII)

Continue reading This Mortal Doyle