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Sync How Order Emerges From Chaos in the Universe, Nature, and Daily Life

Sync How Order Emerges From Chaos in the Universe, Nature, and Daily Life. Sync. Chapter 1: Fireflies and the Inevitability of Sync (pg 11-39) Chapter 2: Brain Waves and Conditions for Sync (pg 40-69) Chapter 3: Sleep and the Daily Struggle for Sync (pg 70-102). Firefly.

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Sync How Order Emerges From Chaos in the Universe, Nature, and Daily Life

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  1. SyncHow Order Emerges From Chaos in the Universe, Nature, and Daily Life

  2. Sync • Chapter 1: Fireflies and the Inevitability of Sync (pg 11-39) • Chapter 2: Brain Waves and Conditions for Sync (pg 40-69) • Chapter 3: Sleep and the Daily Struggle for Sync (pg 70-102)

  3. Firefly • 1915-1935 Science Published 20 Articles • “Some twenty years ago I saw, or thought I saw, a synchronal or simultaneous flash of fireflies. I could hardly believe my eyes, for such a thing to occur among insects is certainly contrary to all natural laws” - Philip Laurent, 1917 • “The apparent phenomenon was caused by the twitching or sudden lowering of my eyelids. The insects had nothing whatsoever to do with it” - Philip Laurent, 1917 • “If it is desired to get a body of men to sign or play together in perfect rhythm they not only must have a leader but must be trained to follow such a leader....Do these insects inherit a sense of rhythm more perfect than are own.” - George Hudson, 1918

  4. The Proof • 1954 Norbert Wiener, MIT, Brain Waves (pg 40-46) • 1964 Art Winfree, Runners on a Track (pg 46-55) • 1975 Yoshiki Kuramoto, Order Parameter (pg 55-59) • 1975 Charlie Peskin, NYU, produces proof for two pulse-coupled oscillators (pg 14-19) • 1989 author reads The Geometry of Biological Time by Art Winfree - “the population of the problem awaits completion. (pg 19)

  5. The Proof • Steven Strogatz and Rennie Mirollo develop proof for n-pulse-coupled oscillators (pg 19-30) • Paul Matthews, MIT (pg 64-65) • George Rowlands, University or Warwick (pg 64-65) • Landau damping (pg 64-65) • 1990s – 100 papers written on pulse-coupled oscillators. (pg 30-31) • 1995 David Welsh and Steve Reppert at Masschusetts General Hospital, Circadian Pacemaker (PG 65-69)

  6. The Proof • 2001: The history of the Alpha Waves...

  7. Why Do Fireflies Sync • Beacon Hypothesis • Males synchronizes to attract females • Synchronization appears to happen in densely wooded areas. • Females can see the light through the trees • “You might get lucky” • Protection from Predators “It's always safest to blend in with a crowd” • “...Competition, not cooperation”

  8. An Aside... • Where can one see synchronized fireflies? • Thailand • Africa • Elkmont, TN – Great Smoky Mountains National Park

  9. http://jacksonmountainhomes.wordpress.com/category/spring/

  10. What Syncs • Fireflies (pg 11-14, 30-35) • Female menstrual cycles (pg 36-39) • Sperm Swimming (pg 14) • Brain Cells (Epilepsy) (pg 14) • Lasers (pg 14) • The Heart (pg 14-30) • Cicadas (pg 35) • Circadian Pacemaker (pg 65-69)

  11. Circadian Cycle • “About a day” • Control of Temperature/Hormones/etc • Sleep Cycle can become Desynchronized from Circadian Cycle

  12. Circadian Cycle • Michel Siffre (Midnight Cave) • Jurgen Aschoff (Internal Desync) • Elliot Weitzman & Charles Czeisler (12 Subjects) – Long Sleep – High Temp... • Curt Richer (Rats) • Winfree: “Sleep duration predictable, but wake duration was not” • Mary Carskadon and William Dement “90 Minute Schedule” 30 Sleep/60 Wake • Forbidden Zone/Other Problems

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