Category Archives: Nature

Tkach on Einstein

Speaking of Life

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Comfy at home tonight

We’re gathered together watching the weather news, being “weather aware,” as we say in Oklahoma. Since the girls were young we’ve enjoyed Gary England and News9. The storm tracking radars in central Oklahoma have amazing precision, and the human storm … Continue reading

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Boyle’s Law, Cartesian diver

Tonight is chem lab night for Susanna and two friends. Our ordinary lab manual is excellent, but the lab for Boyle’s Law seemed far too complicated to reinforce the concepts involved, and it lacked illustrations to make clear the relation … Continue reading

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Under the Starry Skies of J.R.R. Tolkien and Robert Frost

Update: I’ve revised and expanded this presentation and post a bit in preparation for two talks tomorrow (3/5/13) at Norman North High School. Should be fun! —– Tonight I’m giving an informal presentation at the OKC Astronomy Club on the … Continue reading

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Tolkien on Mercury

The mercurial mind of J.R.R. Tolkien has now found an appropriate home in the solar system, a newly-named crater on the planet nearest the intense golden rays of the Sun: Source: The Universe Today May The Hobbit, Silmarillion and Lord … Continue reading

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Go Curiosity!

Curiosity, the van-sized high-tech rover, is set to land on Mars tonight! The above animation of Curiosity’s mission to Mars is well-worth watching – seriously – all 11 minutes of it. The landing itself looks harrowing – more nail-biting than … Continue reading

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The Audacity to Dream

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Let’s be friends

“Josh Williams sings Mark Mathewson’s ‘Mordecai’ at the Doyle Lawson Bluegrass Festival at Denton Farm Park in Denton, NC on May 5, 2011. During this song, a small bird lands on Josh’s guitar while he’s singing. Watch his reaction as … Continue reading

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All things are connected

“All things by immortal power Near and far, Hiddenly, To each other linked are, That thou canst not stir a flower Without the troubling of a star.” – Francis Thompson,“The Mistress of Vision,” Poems (1913) Arabian Star Flower Scale of … Continue reading

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Mountains like clouds

O Earth, what changes hast thou seen! There where the long street roars, hath been The stillness of a central sea. The hills are shadows, and they flow From form to form, and nothing stands; They melt like mist, the … Continue reading

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