On October 3rd, two high-accuracy clocks were placed in Tokyo Skytree. One was installed on a ground floor meeting room, while the other went all the way to the observation deck, 634 meters up. They were put there by a group of scientists from The University of Tokyo. Why? To test Einstein's theory of relativity, of course.
An engineering professor at the University of Tokyo, Hidetoshi Katori, made the time-keeping devices -- called optimal lattice clocks -- back in 2005. They're believed to be some of the most accurate in the world.
According to Einstein's theory of relativity, time should move faster on the observation deck than at the bottom floor. Professor Katori is hoping to prove just that. His clocks will be left in place for two months before the data is to be analyzed. Theoretically, after a single month, the time difference between the two clocks should be 0.13 microseconds. To give you an idea of how tiny a microsecond is, if you wanted to create a lag of a single second, the clocks would have to stay in place for 700,000 years.
If this experiment is a success, then next it will be tried on Mount Fuji.
More on the experiment can be found here at Asahi Shimbun and this video (Japanese).
Yoshitaka Sakurada might not be Japan’s best pick for the cybersecurity portfolio: confused by a USB drive, he was forced to admit he’d never even used a computer.
The Yokohama Board of Education has posted scans of six fantastic catalogs from Hirayama Fireworks and Yokoi Fireworks, dating from the early 1900s. The illustrated catalogs are superb, with minimal words: just beautiful colored drawings depicting the burst-pattern from each rocket.
One of the things I’ve always really liked about Japan is that once you get out of the big cities, you start coming across these things called mujin hanbai, literally “unmanned selling.” Mujin hanbais are simply small, open-faced huts with shelves and a roof. Owned by a nearby local farmer, more often than not, they’re […]
In photography as in film, all the real artistry is in post-production – increasingly so, with the new possibilities cropping up in digital imaging. If you’re ready to get serious about your photography, may we suggest HDR Projects 2018 Pro. As working photographers can tell you, this imaging software can help you re-imagine even the […]
A picture can be worth a heck of a lot more than just a thousand words. If you’ve squinted for ages trying to get just the right photo, you might have the right passion for a career behind the camera. You might even have the right equipment, but do you have the know-how? The Beginner-To-Expert […]
In case you hadn’t noticed from the sleigh bell-heavy music and the hues on your Starbucks cup, the holiday season hasn’t shown any more patience this year. But that doesn’t need to be a bad thing, especially if you’re hoping to get a jump on your shopping. Retailers aren’t waiting til Black Friday to dish […]