doug141 writes: Two clocks
this accurate, if placed on adjacent tables with a 1 centimeter
height difference, would get out of sync due to general relativity
alone. Also, they can be used to determine if our universe's fine
structure constant has, in fact, been constant. Link to Original Source
"Summit meetings tend to be like panda matings. The expectations are always
high, and the results usually disappointing."
-- Robert Orben