Apollo wrote:
What an interferometer looks like. Scale it up a bit, wear a white coat with biro's, call yourself an Institute, win a Nobel Prize. Easy.
It's all done with smoke and mirrors. Much like Arma.

Fun fact: if the one day you choose to press on an optical bench (which makes funky hissing noises when you do) as part of a tour for prospective students is the day that the senior member of staff has spent hours calibrating it for an actual experimental run, you'll get the frostiest stare in the whole of Finland...