Day 1 Winter Break 2014 in Japan: Solo Traveler from Sendai to Tokyo

Solo Traveler from Sendai to Tokyo It was 26th December, I decided to go to Tokyo by JR local Train 18きっぷ. I got 5 tickets of unlimited JR train within 5 days on 10 Dec- 10Jan (not counted in sequence day). I was really insecure at that time because I had to go alone by train with 5 transits along Sendai to Tokyo. Based on the itinerary it would take 6 hours riding by JR local train. Yeah, 6 hours inside the train alone, wanderer from northen to...

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Spectral Linewidth Reduction

1. Spectral Linewidth A spectral line is a dark or bright line in an otherwise uniform and continuous spectrum. A spectral line extends over a range of frequencies, not a single frequency (i.e., it has a nonzero linewidth). In addition, its center may be shifted from its nominal central wavelength.  Linewidth is width of the spectrum of a light beam or an absorption feature. "Widely wavelength tunable lasers are key components for future reconfigurable dense wavelength-divisionmultiplexed (DWDM) optical networks. And they are also expected...

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Throwback Robotics Stuff

First of all I would like to say Thank you to my friends, my seniors in Universitas Indonesia, who helped me a lot to build and mobilize robot . Thanks for the courage, knowledge and time. ありがとうー UI Robotics Team :) My University's robotics club member. Full team in one frame. TRUI! JUARA! JUARA! JUARA! TRUI! JUARA! JUARA! JUARA! 1. When I was still a freshman student I have been interested in one of club in my university, Robotics...

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