Buy from our bookstore and 25% of the cover price will be given to a school of your choice to buy more books. *15% of eBooks.
Audiobooks by Ken Croswell, Ph.D.
Browse audiobooks by Ken Croswell, Ph.D., listen to samples and when you're ready head over to Audiobooks.com where you can get 3 FREE audiobooks on us
Squirrels! Learn about the survival of different types of squirrels. Stories by Lois Bower, Alison Pearce Stevens Ph.D., Cheryl M Reifsnyder, Ph.D., and Richard Woods.
Frogs! Learn about the unique jump of the Tailed Frogs in the Pacific Northwest. Figure out where the mysterious sound of a thousand bells comes from. Discover the dangerous journey of a wood frog. Get a close look at the tiny "famous" frogs from the rain forest. Stories by Pamela Brunskill, Barbara Cole, Carole Smith Berney, and Chris Dietel.
Twenty-four robots competed in DARPA challenge re: disaster-response tasks. Korea's DRC-HUBO won. Sidebar on the difficulty of designing a robot that can walk steadily.