Vetro e foroni

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From: rabbit <pinkrabbit_at_tin.it>
Date: 1998/10/20

Se per un'ipotesi assurda avessi un vetro dello spessore di 300.000 km
e lo ponessi davanti ad un fascio di luce, i fotoni ci metterebbe non
un secondo a percorrerlo ma....?
Grazie
Mara
Received on Tue Oct 20 1998 - 00:00:00 CEST

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