In another experiment the researchers wake up sleeping mice by sending a light signal to the hypothalamus, the brain's controller of sleep-wake cycles.

FORBES: Magazine Article

When a neutrino interacts in the NOvA detector , the particles it produces leave trails of light in their wake.

ENGADGET: NOvA neutrino detector captures cosmic rays in 3D, aims to unlock the mysteries of the universe

"It doesn't matter if you're asleep or whatever, you'll wake up and you'll see that red light, and you'll look at it, " Taylor says of his BlackBerry.

CNN: Why we can't unplug on vacation