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Barbituric acid, the base material of barbiturates, was first synthesized in 1863 by Adolph von Bayer. His company later went on to synthesize aspirin for the first time, and Bayer aspirin is still a popular brand today.

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If you could remove all of your skin, it would weigh up to 5 pounds.

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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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The first successful kidney transplant was performed in 1954 and occurred in Boston. A kidney from an identical twin was transplanted into his dying brother's body and was not rejected because it did not appear foreign to his body.

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People who have myopia, or nearsightedness, are not able to see objects at a distance but only up close. It occurs when the cornea is either curved too steeply, the eye is too long, or both. This condition is progressive and worsens with time. More than 100 million people in the United States are nearsighted, but only 20% of those are born with the condition. Diet, eye exercise, drug therapy, and corrective lenses can all help manage nearsightedness.

Seasonal changes in biomass and growth form of benthic algae in the Eel River, California: (a) in ea Seasonal changes in biomass and growth form of benthic algae in the Eel River, California: (a) in ea
Seasonal changes in biomass and growth form of benthic algae in the Eel River, California: (a) in ea Seasonal changes in biomass and growth form of benthic algae in the Eel River, California: (a) in ea
Seasonal Depression Treatment Seasonal Depression Treatment
Seasonal Depression Treatment Seasonal Depression Treatment
Earth’s tilt and yearly rotation around the sun cause seasonal effects. The 23° tilt of Earth’s ... Earth’s tilt and yearly rotation around the sun cause seasonal effects. The 23° tilt of Earth’s ...
Video: Chemical Messengers Animation

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