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Did you know?

In the United States, there is a birth every 8 seconds, according to the U.S. Census Bureau's Population Clock.

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The familiar sounds of your heart are made by the heart's valves as they open and close.

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Never take aspirin without food because it is likely to irritate your stomach. Never give aspirin to children under age 12. Overdoses of aspirin have the potential to cause deafness.

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In ancient Rome, many of the richer people in the population had lead-induced gout. The reason for this is unclear. Lead poisoning has also been linked to madness.

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Bisphosphonates were first developed in the nineteenth century. They were first investigated for use in disorders of bone metabolism in the 1960s. They are now used clinically for the treatment of osteoporosis, Paget's disease, bone metastasis, multiple myeloma, and other conditions that feature bone fragility.

Pre–steady state kinetic evidence for an acyl-enzyme intermediate Pre–steady state kinetic evidence for an acyl-enzyme intermediate
Experimental Evidence for Infrared Radiation Experimental Evidence for Infrared Radiation
All of the homes in this new neighborhood of Brentwood, California, are for sale, evidence of the co All of the homes in this new neighborhood of Brentwood, California, are for sale, evidence of the co
Total Solid Waste, MSW per Capita Total Solid Waste, MSW per Capita
World Total Energy Consumption by Fuel Type World Total Energy Consumption by Fuel Type
A phylogenetic tree showing the evolutionary relationships among hominoids. The evidence shows that A phylogenetic tree showing the evolutionary relationships among hominoids. The evidence shows that
Video: Chemical Messengers Animation

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