When the planet faced destruction, they saved it. Max and the flock have traded in Antarctica's subzero temperatures for sunny Los Angeles, where they're taking over the skies with their hair-raising air show.
Blue Skies is a seven-level course for young learners. It provides all the important basic grammar and communicative activities needed to give young children a strong and succcessful start in English.
Edited by: englishcology - 15 February 2009
Reason: Combined by IrinaM / Reduced by Englishcology
From the gnomons and sundials of ancient times to the 26-kilometer underground particle accelerator of the twenty-first century, this fascinating and enlightening volume by mathematician and anthropologist Thomas Crump shows how science has continually redefined the world's horizons, extended the frontiers of knowledge, and advanced human civilization. With sixteen pages of photographs, and vivid vignettes of scientists and their inventions, Crump guides readers through early attempts to measure time and space—from astronomical charts and calendars to Arabic numerals and algebraic notation—before he examines the birth of an essentially modern technology in the 1600s. With Galileo's telescopic exploration of the skies at the beginning of the seventeenth century and Newton's experiments with the prism and light at its end, the optical instruments fundamental to all scientific research had been invented. Crump then proceeds to electromagnets, cathode tubes, thermometers, vacuum pumps, X rays, accelerators, semiconductors, microprocessors, and instruments currently being designed to operate in subzero temperatures.
