La Striscia del Giorno
Are U sure?!
venerdì 5 marzo 2010
mercoledì 3 marzo 2010
chile earthquake
Chile quake Shifted Earth's axis, Shortened the lenght of a day
The devastating earthquake in Chile that killed almost 700 people probably also shifted the Earth’s axis, say NASA scientists, permanently making days shorter by 1.26 microseconds. But since a microsecond is one-millionth of a second, you may not have noticed.
Richard Gross, a geophysicist at NASA’s Jet Propulsion Laboratory, says he has done the calculations. Gross says the earthquake, which measured 8.8 on the Richter scale, moved large amounts of rock, altered the distribution of mass on the planet, and moved the Earth’s axis by about 2.7 milliarcseconds (about 8 centimeters or 3 inches). The change in axis directly impacts Earth’s rotation, and the rate of the planet’s rotation determines the length of a day.
To explain this phenomenon, scientists used an ice skating analogy: When a skater spins on ice, he draws his arms closer in to his body to spin faster, because the speed of his rotation is dependent on the way mass is distributed across his body.
Scientists point out that the duration of a day can change depending on different geological events.
The devastating earthquake in Chile that killed almost 700 people probably also shifted the Earth’s axis, say NASA scientists, permanently making days shorter by 1.26 microseconds. But since a microsecond is one-millionth of a second, you may not have noticed.
Richard Gross, a geophysicist at NASA’s Jet Propulsion Laboratory, says he has done the calculations. Gross says the earthquake, which measured 8.8 on the Richter scale, moved large amounts of rock, altered the distribution of mass on the planet, and moved the Earth’s axis by about 2.7 milliarcseconds (about 8 centimeters or 3 inches). The change in axis directly impacts Earth’s rotation, and the rate of the planet’s rotation determines the length of a day.
To explain this phenomenon, scientists used an ice skating analogy: When a skater spins on ice, he draws his arms closer in to his body to spin faster, because the speed of his rotation is dependent on the way mass is distributed across his body.
Scientists point out that the duration of a day can change depending on different geological events.
martedì 2 marzo 2010
domenica 28 febbraio 2010
mercoledì 24 febbraio 2010
martedì 23 febbraio 2010
domenica 21 febbraio 2010
Per scoprire il vincitore morale del festival si deve tornare indietro di 30 anni
Festival di Sanremo 1980:
sabato 20 febbraio 2010
martedì 16 febbraio 2010
venerdì 12 febbraio 2010
mercoledì 10 febbraio 2010
domenica 7 febbraio 2010
Mi ricorda un altro cartello che ho visto dagli "Operai"...
Non ha ancora un nome la persona che sabato mattina ha rimosso la targa che indica la via di Agrigento, in zona Parco Angeli, dove ha casa il ministro della Giustizia Angelino Alfano, sostituendola con un'altra in cui è stato scritto «Lodo Alfano, vergogna d'Italia» (foto da Agrigentoflash.it).mercoledì 3 febbraio 2010
iMussolini - parte seconda (e ultima?)
A quanto pare c'è violazione di copyright:
repubblica
Applicazione... rimossa! Ma chi ha già scaricato l'applicazione? Ora possiede un "cimelio"?
repubblica
Applicazione... rimossa! Ma chi ha già scaricato l'applicazione? Ora possiede un "cimelio"?
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