Description:
The 20th century yielded dramatic and profound advances in science and technology. Packed with photos, illustrations, and intriguing narrative, Science Year by Year--a handsome, informative resource from Popular Science magazine--documents 100 years in science. Readers can track invention from the early 1900s, when the first diesel engine was developed, a new pain-relief drug called Aspirin was marketed, and Pavlov was developing his conditioned reflex theory, to the end of the century, when the prefix www had become a household term, human genetic material was almost completely decoded, and a space probe had landed on Mars and released a vehicle to explore its surface. More than 25 branches of science (paleontology, chemistry, archaeology, biology, oceanography, astronomy, etc.) are represented in a logical year-by-year format, along with capsule biographies and features. In addition, 20 "Special Focus Topics" take a more in-depth look at essential, sometimes controversial, concepts such as sound and music, nuclear energy, recycling, and genetics. Curious readers of all ages will be spellbound by the wealth of information revealed in this fine guide to a remarkable era. (Ages 9 and older) --Emilie Coulter
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