Today is International Day of Light as well as 五月祭 of UTokyo, the biggest open-campus activity in the university. A lot of people visit to see the vitality of the students. It is also a great chance to present what research the university is doing to the public.
In 1966, Charles Kao made a discovery in fiber optics: he calculated how to transmit light over long distances via optical glass fibers. Together with laser technology, his solution made telecommunication using optical fibers possible.
#WorldTelecommunicationDay