even*cleveland: wobbling a bit differently these days

wobbling a bit differently these days

The March 11, magnitude 9.0 earthquake in Japan may have shortened the length of each Earth day and shifted its axis. But don’t worry—you won’t notice the difference.

Using a United States Geological Survey estimate for how the fault responsible for the earthquake slipped, research scientist Richard Gross of NASA’s Jet Propulsion Laboratory, Pasadena, Calif., applied a complex model to perform a preliminary theoretical calculation of how the Japan earthquake—the fifth largest since 1900—affected Earth’s rotation. His calculations indicate that by changing the distribution of Earth’s mass, the Japanese earthquake should have caused Earth to rotate a bit faster, shortening the length of the day by about 1.8 microseconds (a microsecond is one millionth of a second).

The calculations also show the Japan quake should have shifted the position of Earth’s figure axis (the axis about which Earth’s mass is balanced) by about 17 centimeters (6.5 inches), towards 133 degrees east longitude. Earth’s figure axis should not be confused with its north-south axis; they are offset by about 10 meters (about 33 feet). This shift in Earth’s figure axis will cause Earth to wobble a bit differently as it rotates, but it will not cause a shift of Earth’s axis in space—only external forces such as the gravitational attraction of the sun, moon and planets can do that.

Per NASA, via The Atlantic + It's Full of Stars.

Whoa.

What sort of diary should I like mine to be? Something loose-knit and yet not slovenly, so elastic that it will embrace anything, solemn, slight or beautiful, that comes into my mind. I should like it to resemble some deep old desk or capacious hold-all, in which one flings a mass of odds and ends without looking them through. I should like to come back, after a year or two, and find that the collection had sorted itself and refined itself and coalesced, as such deposits so mysteriously do, into a mould, transparent enough to reflect the light of our life, and yet steady, tranquil compounds with the aloofness of a work of art. The main requisite, I think, on reading my old volumes, is not to play the part of a censor, but to write as the mood comes or of anything whatever; since I was curious to find how I went for things put in haphazard, and found the significance to lie where I never saw it at the time.

V. Woolf

Don't be amazed if you see my eyes always wandering. In fact, this is my way of reading, and it is only in this way that reading proves fruitful for me. If a book truly interests me, I cannot follow it for more than a few lines before my mind, having seized on a thought that the text suggests to it, or a feeling, or a question, or an image, goes off on a tangent and springs from thought to thought, from image to image, in an itinerary of reasonings and fantasies that I feel the need to pursue to the end, moving away from the book until I have lost sight of it. The stimulus of reading is indispensable to me, and of meaty reading, even if, of every book, I manage to read no more than a few pages. But those few pages already enclose for me whole universes, which I can never exhaust.

Italo Calvino

Why didn't she try collecting something? It didn't matter what. She would find it gave an interest to life, and there was no end to the little curiosities one could easily pick up.

Henry James

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