TY - MANSCPT AU - Robinson,Richard TI - Forces and Movement SN - 978-1-59566-361-0 PY - 2007/// CY - Laguna Hills, CA PB - QEB Publishing KW - Motion KW - Force and energy N1 - Elementary N2 - Without friction, a billiards game would last forever. Scientists have created motors so small that 300 of them could fit onto a period. In a spacecraft, a candle would burn with a ball-shaped flame ER -