Send Morse Code Over Stockholm By Laser 139
bigmac writes "KTH, Royal Institute of technology is celebrating 175 year anniv by making a very spectacular laser show. A green laser sent from the bottom of an old reactor building 30 meters below ground. The beam is then reflected over the city from the schools clock tower.
And yes, you can send your own laser-morse messages through their homepage!" Here's an image to chew on.
Send my own message, eh? (Score:1, Informative)
How to send your message through that www -page. (Score:5, Informative)
This may be of help (Score:5, Informative)
Re:ehm... something else on the site (Score:4, Informative)
Please notice however, that Richard M. Stallman was given an honorary doctorate at KTH already in 1996!
i found this... (Score:4, Informative)
Yes, it does (Score:2, Informative)
I've seen green laser that were intense enough to been seen by the naked eye.. If you look at it from the correct angle with respect to the polarization, of course
Quick translation from Swedish (Score:5, Informative)
In a symbolic meeting between academia and the rest of the world, Stockholm's night sky will be adorned by a beam of light. A beam that has its origins in history, is part of our time and endeavours towards the future. A beam reflecting the advancements of technology and enterprise. A curious beam.
From a point 30 meters below the face of the earth, where once Sweden's first nuclear reactor was, a laser beam is produces and is reflected by the tower where pioneers once sent the first TV signals across Sweden. From here, the light is further projected over the city before reaching its goal: the City Hall.
Re:Oh, right (Score:1, Informative)
actually it doesn't need ionization or particles.. (Score:3, Informative)
the dipole oscillations are oriented with respect to the polarization of the light, so this light is most intense if you see it from an angle perpendicular to the polarization.
It's true that weak lasers has to reflect of particles, but I'm sure that this laser is powerful enough to cause dipole radiation... (maybe the reason why the didn't just move the laser from the basement it's placed in)
Check out all photos (Score:3, Informative)
It's not directed upwards... (Score:2, Informative)
Re:Oh, right (Score:3, Informative)
D
some more lasershows... (Score:3, Informative)
I don't understand Knåkkebrøtish, but it looks kuhl.
Check here [omagica.com]