"Aether Clock OC 020" is the most accurate clock in the world

According to its manufacturer Shimadzu from Kyoto, the "Aether Clock OC 020" is so precise that it would take ten billion years for it to deviate by one second.

It looks like a wide refrigerator and is now for sale: The world's most accurate clock has been on sale in Japan since Wednesday for the equivalent of €3.09 million. According to its manufacturer, Shimadzu from Kyoto, the "Aether Clock OC 020" is so precise that it would take ten billion years for it to deviate by one second. The company stated that the strontium lattice clock is 100 times more accurate than cesium atomic clocks, which were previously considered the most accurate.

The machine is about one meter tall and, with a volume of around 250 liters, small for its kind. Shimadzu plans to sell ten of its clocks in the next three years. The company hopes that its customers will use the clocks in scientific research, such as observing tectonic activity. Lattice clocks have already been installed in Tokyo's famous Skytree broadcasting tower to test the general theory of relativity, which states that time passes more slowly in places with strong gravity.