Re:How to store data for a billion years
by anamax on Thursday June 18, 2009 @02:46PM
(#663906)
He'd need two marks. The other one is to tell you how to interpret the first, that is, the definition of 1.0.
Also, unless he was using a very long rod, he'd have to mark somewhere in the middle of an atom.
I think that issues like this are part of why length is now defined in terms of wavelengths of light. And even then, the number of digits that we use in the definition is relatively small.
Also, unless he was using a very long rod, he'd have to mark somewhere in the middle of an atom.
I think that issues like this are part of why length is now defined in terms of wavelengths of light. And even then, the number of digits that we use in the definition is relatively small.