Autor: Mary B Woods

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Michael Woods is a science and medical writer whose nationally syndicated newspaper stories and columns have won numerous national awards. He directs a program at the American Chemical Society, the world”s largest scientific society, to inform the public about science. Michael is the writer on the Woods team, and Mary is the researcher. They have written almost 40 books.




8 Ebooki wg Mary B Woods

Mary B Woods & Michael Woods: Blizzards
A winter snowfall can be beautiful. But if conditions call for dense snow, freezing temperatures, and bone-chilling wind, you are in for a dangerous blizzard. These blinding, swirling storms can shut …
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€35.25
Mary B. Woods & Michael Woods: Ancient Machine Technology
Did you know . . . Ancient people used bows to drill holes and start fires? The ancient Chinese built a machine to detect earthquakes? The ancient Romans operated a factory for milling grain?Machine …
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€61.59
Mary B. Woods & Michael Woods: Ancient Transportation Technology
Did you know . . . People first used skis more than 8, 000 years ago? The first wheels were used in pottery not for transportation? Traffic jams often clogged the streets of ancient Rome?Transportati …
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€61.85
Mary B. Woods & Michael Woods: Ancient Warfare Technology
Did you know . . . The Scythians used guerrilla warfare more than 2, 500 years ago? The Chinese general Sun-tzu wrote the first military manual in the fourth century B.C.? Some ancient Greek warships …
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€61.48
Mary B. Woods & Michael Woods: Ancient Agricultural Technology
Did you know . . . Ancient Romans invented a machine to harvest grain? Farmers in ancient China destroyed the pests that harmed crops by bringing in their natural predators? The ancient Mayans restor …
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€62.06
Mary B. Woods & Michael Woods: Ancient Construction Technology
Did you know . . . The ancient Maya built magnificent pyramid-temples? Ancient Chinese builders created central home heating systems? One ancient Greek monument was taller than a ten-story building?C …
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€61.85
Mary B. Woods & Michael Woods: Ancient Communication Technology
Did you know that people first used road signs more than 2, 000 years ago? Did you know that Ancient Rome had its own postal service? Did you know that Egyptian writers used flakes of limestone for s …
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€61.41
Mary B. Woods & Michael Woods: Ancient Medical Technology
Did you know . . . Doctors in ancient Peru performed brain surgery? Ancient Greek doctors ran medical schools? The ancient Indians knew how to protect people from smallpox?Medical technology is as ol …
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€61.75