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News from the world of maths: How long is a day?
Friday, December 18, 2009
In our last online poll to find out what Plus readers would most like to know about the Universe you told us that you'd like to find out how long a day is. We took the question to the physicist Nicholas Mee and here is his answer — and it's not 24 hours!
Labels: IYA2009
posted by Plus @ 3:14 PM
1 Comments:
 At 9:51 PM, Quantum_Flux said...

Nice, but shouldn't that analemma be shifted left by a few minutes to the intersection coincides with zero minutes?