Over a few decades this would amount to a minute's difference, but over several hundred years this would mean the atomic clock time-scale and the time-scale based on the Earth's rotation would be out by an hour.

BBC: Changes to the world's time scale debated

The confirmation of Richard's remains may make no difference in the royal world, but it does mean the king will finally get a proper burial.

CNN: Back from the grave, King Richard III gets rehab

For one, the light that falls on your eyes is meaningless because it could mean anything, it's what we do with information that makes the difference, in how we find patterns and associate those patterns with a useful meaning.

FORBES: TEDGlobal

It's possible that in some cases, even this much of a benefit could mean the difference between staying at home and going into assisted living.

CNN: Hard to tell, but drug helps as Alzheimer's progresses

Just because it might not make a difference in public health, "it doesn't mean it's universally true for everyone, " she said.

CNN: Half of Americans use supplements