MaudlinMutantMollusk: Does anybody really know what time it is?
Teaser: [i41.tinypic.com image 700x662]
SewerSquirrels: Would the new clock reduce the theoretical down to under 5 ft.?
clambam: Donnchadha: MayContainHorseGluten: Teaser: [i41.tinypic.com image 700x662]Actually that Fahrenheit thing is wrong. 0 °F is when seawater freezes. 0 °C is freshwater. Not arbitrary.It's actually based on a temperature of an ammonium chloride slurry for the zero point. The freezing point of pure water was set to 32 degrees so that any "degree" mark could be identified through dividing the scale by 2 repeatedly.Yesterday it was zero degrees F outside. Today it is twice as cold. What is the temperature?
ChrisDe: Teaser: [i41.tinypic.com image 700x662]Actually for temperature, Fahrenheit is more precise. 180 units of measurement between freezing and boiling point, instead of 100. That really helps when I need to know if I should wear a sweater or not.
lilbjorn: The devices, called optical lattice clocks, lost just one second every 300 million years - making them three times as accurate as current atomic clocksOh, well by all means. Let's spend billions of tax of dollars converting over to this new clock.
I_Am_Weasel: I think they're guessing.
boarch: FTA: "The devices, called optical lattice clocks, lost just one second every 300 million years - making them three times as accurate as current atomic clocks. "They tested this-- how?
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