Later. the plane's battery charge increased under the rays of the sun and powered the plane through the night. the pilot, the sole ok pant, said, i have flown more than 26 hours without using a drop of fuel and without causing pollution. he said his ipod battery did die. he couldn't keep listening to his first tunes. but he had an average speed of 26 miles per hour. it was a test flight. the project's co-founder saying, quote, we're on the verge of perpetual flight. engage. let's bring in our aviation writer tonight. fill in some of the details, including how much that plane weighed, for insta...