This is a unique resource: Nothing is comparable with this much depth or numbers that covers so many 20th century events.??AAGreat Events from History: The Twentieth Century, 1941-1970??AA, is the ninth installment in Salem Press' ongoing ??AAGreat Events from History??AA series. This six-volume set contains 1,112 essays on more than 1,100...

In this second edition of Future Spacecraft Propulsion Systems, the authors demonstrate the need to break free from the old established concepts of expendable rockets, using chemical propulsion, and to develop new breeds of launch vehicle capable of both launching payloads into orbit at a dramatically reduced cost and for sustained operations in...

During his campaign for reelection in 1996, the Internet-savvy President Bill Clinton used the slogan “Building a Bridge to the 21st Century.” It turns out that the bridge is operated and maintained in cyber form, and that malevolent actors can practice their black arts to disrupt or destroy the bridge, its cyber traffic, and all...

This book brings together scholars working in the field of mathematics education to examine the ways in which learners form particular relationships with mathematics in the context of formal schooling. While demand for the mathematically literate citizen increases, many learners continue to reject mathematics and experience it as excluding and...