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Did you know?

More than 20 million Americans cite use of marijuana within the past 30 days, according to the National Survey on Drug Use and Health (NSDUH). More than 8 million admit to using it almost every day.

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Excessive alcohol use costs the country approximately $235 billion every year.

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Nitroglycerin is used to alleviate various heart-related conditions, and it is also the chief component of dynamite (but mixed in a solid clay base to stabilize it).

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Looking at the sun may not only cause headache and distort your vision temporarily, but it can also cause permanent eye damage. Any exposure to sunlight adds to the cumulative effects of ultraviolet (UV) radiation on your eyes. UV exposure has been linked to eye disorders such as macular degeneration, solar retinitis, and corneal dystrophies.

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Pregnant women usually experience a heightened sense of smell beginning late in the first trimester. Some experts call this the body's way of protecting a pregnant woman from foods that are unsafe for the fetus.

Ancestral versus shared derived characters involving a molecular trait. Ancestral versus shared derived characters involving a molecular trait.
Fourier Series Visual GIF Fourier Series Visual GIF
Bowen’s Reaction Series Bowen’s Reaction Series
Physics - A Mixture of Series and Parallel Capacitance Physics - A Mixture of Series and Parallel Capacitance
Three series of overlapping deletions in the A cistron of the rII locus Three series of overlapping deletions in the A cistron of the rII locus
Video: Blood Flow Through the Kidneys

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