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NOVA scienceNOW: Ask The Expert: CERN
Peter Fisher answered viewer questions about particle smashing at the Large Hadron Collider (LHC) and much more on July 19, 2007.
NOVA

Web Features: How Quantum Computers Work [Video]
Jargon is easy; metaphors are tough — try describing quantum computers to folks who have never heard of them. One of our editors gives it his best shot in fifth episode of the Instant Egghead segment of Scientific American’s new video podcast. (iTunes, RSS)

Remotely Controlled Drugs
Nanoparticles can be activated by radio frequencies.

Scientific American Mind: Uncovering “Brainscams”
Most of us take our brain for granted. As poet Robert Frost wrote, “The brain is a wonderful organ. It starts working the moment you get up in the morning and does not stop until you get into the office.” Weighing in at a mere three pounds and possessing the consistency of a lump of Jell-O, our brain looks surprisingly unimpressive in the flesh. Yet it is capable of soaring intellectual feats.

NOVA scienceNOW: Ask The Expert: Space Elevator
Brad Edwards answered selected viewer questions about space elevators on January 16, 2007.
NOVA

Relativistic Quantum Theory of Atoms and Molecules: Theory and Computation

60-Second Science: Sperm Subject To Attack–By Pollution
Air pollution is bad for our health, but scientists say we don’t know much about the long-term effects. So researchers in Canada and the Netherlands decided to gather genetic information in an urban industrial environment–by looking at mouse sperm. They published the study in the Proceedings of the National Academy of Sciences.

60-Second Science: Same Old Song May Sound Different To Individuals
Our ears are highly attuned to sounds in the world around us. It’s not just the frequency of the sound itself. There are also subtle differences and shifts in loudness and pitch. That’s what tells us, for instance, whether that baby crying belongs to us and just where it’s located. But according to a recent study, what you and I hear may not sound the same.

Mind Matters Blog: Working Memory: They Found Your Brain’s Spam Filter
Working Memory: The Brain’s Spam Filter LocatedAndrew W.

Mass Extinction
What caused the mother of all extinctions 250 million years ago?
NOVA