Monday, 8 September 2008


Originally uploaded by keeshu
And this is where I am; the VIRGO experiment in Pisa, Italy. This pipe is one of two laser-beam pipes, each around 3 km in length.


Vincent said...

What are they doing with such a big laser?

Vincent said...

Sorry, laser BEAM.

Kees said...

It's a laser interferometer for detecting gravitational waves.

Vincent said...

They need 6km of pipes to detect changes in the earth's gravitational field? Don't they have a little chip to do that?