DNA tests showed he was innocent.

Tinkering School doesn't follow a set curriculum, and there are no tests.

Text Wind tunnel tests Narrator The wing has no steering controls, no flaps, no rudder.

RB Yeah, it'll be ready in well, ready in 12 months and then we do 12 months extensive testing.

And at Princeton, they've actually experimented with this, where they have quizzes where you gain experience points, and you level up from B to an A.

After treatment, about every week, we run the child on a battery of simple visual tests in order to see how their visual skills are coming on line.

We started in Bermuda for our test project, then moved up to Halifax, working down the U.S. East Coast, the Caribbean Sea, the Panama Canal, through to the Galapagos, then across the Pacific, and we're in the process now of working our way across the Indian Ocean.

What you see here is performance on that head turn task for babies tested in Tokyo and the United States, here in Seattle, as they listened to ra and la sounds important to English, but not to Japanese.