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Author Question: Trenching and excavating can begin for spread footing, piers, and foundation walls after ... (Read 53 times) |
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In 1844, Charles Goodyear obtained the first patent for a rubber condom.
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The immune system needs 9.5 hours of sleep in total darkness to recharge completely.
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In the United States, congenital cytomegalovirus causes one child to become disabled almost every hour. CMV is the leading preventable viral cause of development disability in newborns. These disabilities include hearing or vision loss, and cerebral palsy.
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Essential fatty acids have been shown to be effective against ulcers, asthma, dental cavities, and skin disorders such as acne.
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Long-term mental and physical effects from substance abuse include: paranoia, psychosis, immune deficiencies, and organ damage.
Spiral Produced by twisting stresses that are spread along the length of a bone (note the break in t
Early cities were small economic centers surrounded by walls to keep out enemies. These cities had ...