27 JUL 2018 by ideonexus
Shannon's Learning Mouse Theseus
Theseus was propelled by a pair of magnets, one embedded in its hollow core, and one moving freely beneath the maze. The mouse would begin its course, bump into a wall, sense that it had hit an obstacle with its “whiskers,” activate the right relay to attempt a new path, and then repeat the process until it hit its goal, a metallic piece of cheese. The relays stored the directions of the right path in “memory”: once the mouse had successfully navigated the maze by trial and error, it ... 1 
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notes30 JUL 2013 by ideonexus
Odd Sympathy
Laid up in bed during a brief illness and idly watching two clocks mounted in one case, Huygens noticed something strange: No matter how the pendulums started out, eventually they always ended up swinging in exactly opposite directions. Huygens wondered whether this odd sympathy might solve the longitude problem. Perhaps, he thought, two such clocks could regulate each other. If one got dirty, for instance, and started running slow, the influence of the other clock would lessen this effect. I... 1 notes
notesMathematician Christiaan Huygens, inventor of the pendulum clock found that two clocks on the same wall will invariably come into counter-synchronization with one another. This is because of thermodynamics and their connection via the support beam in the wall.
05 JUN 2012 by ideonexus
Learning Natural History
To a person uninstructed in natural history, his country or sea-side stroll is a walk through a gallery filled with wonderful works of art, nine-tenths of which have their faces turned to the wall. Teach him something of natural history, and you place in his hands a catalogue of those which are worth turning around. Surely our innocent pleasures are not so abundant in this life, that we can afford to despise this or any other source of them. 1 notes
notesWithout it, walking along a beach is like walking through an art gallery with half the artwork turned to the wall.
05 MAY 2012 by ideonexus
Tyson is an Educator
Thanks for all your candid comments on this wall regarding my short atheism-agnosticim clip on "Big Think". I found them illuminating for their breadth as well as their depth. I note a few other possibly unexpected things about me: Not only do I not embrace labels, you will never see me debating people on the subjects of UFOs, Religion, Alternative Health practices, Astrology, or Pseudoscience in general. My speeches at TAM 6 & 9 were given reluctantly (I don't normally attend). I don't s... 1 notes
notesNot associated with any "ism" because he finds people are much more open to your ideas when they know you aren't aligned with any agenda.
18 JAN 2012 by ideonexus
Anecdote Concerning Niels Bohr
A visitor to Niels Bohr's country cottage, noticing a horseshoe hanging on the wall, teasing the eminent scientist about this ancient superstition. 'Can it be true that you, of all people, believe it will bring you luck?'
'Of course not,' replied Bohr, 'but I understand it brings you luck whether you believe it or not.' Folksonomies: superstition anecdote
Folksonomies: superstition anecdote
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notesAnd a horseshoe he had hanging on a wall and superstition.
18 SEP 2011 by TGAW
Vonnegut on Fiction vs. Journalism - Noise and Melody
I am reminded now, as I think about news and fiction, of a demonstration of the difference between noise and melody which I saw and heard in a freshman physics lecture at Cornell University so long ago. (Freshman physics is invariably the most satisfying course offered by any American university.) The professor threw a narrow board, which was about the length of a bayonet, at the wall of the room, which was cinder block. "That's noise," he said.
Then he picked up seven more boards, and he...Folksonomies: vonnegut journalism fiction
Folksonomies: vonnegut journalism fiction
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