Katori’s team set up the optical lattice clock on the tower’s observation deck and ... from research institutions both in and outside Japan. “Optical lattice clocks hold great potential ...

The clock tower is located nearly 40 meters from the ground and was recognized as a legacy to mark Japanese industries’ modernization by the Ministry of Economy, Trade and Industry in 2009.

Japanese precision ... selling an optical lattice clock with a deviation of less than one second over 10 billion years, making it the most accurate on the market. The device measures 114 ...