by Kimberly Brubaker Bradley ; illustrated by Paul Meisel.
by Hazel Richardson ; illustrated by Scoular Anderson.
March 28th, 2011 Vol. 177 No. 12rnApril 4th, 2011 Vol. 177 No. 13rnApril 11th, 2011 Vol. 177 No. 14rnApril 18th, 2011 Vol. 177 No. 15rnApril 25th, 2011 Vol. 177 No. 16rnMay 2nd, 2011 Vol. 177 No. 1…
This book contains some of the problems and solutions in the past domestic theoretical and experimental competitions in Japan for the International Physics Olympiad. Through the exercises, we aim a…
Concepts of work and energy are based on transformation concept that is interpreted as the situation in which an object changes its shape, position and state (rest, motion or aggregation) but it do…
Dewey Marriss is stuck in a crunch. He never guessed that the gas pumps would run dry the same week he promised to manage the family's bicycle-repair business. Suddenly everyone needs a bike. And n…