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Did you know?

Cyanide works by making the human body unable to use oxygen.

Did you know?

The first-known contraceptive was crocodile dung, used in Egypt in 2000 BC. Condoms were also reportedly used, made of animal bladders or intestines.

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The ratio of hydrogen atoms to oxygen in water (H2O) is 2:1.

Did you know?

Sildenafil (Viagra®) has two actions that may be of consequence in patients with heart disease. It can lower the blood pressure, and it can interact with nitrates. It should never be used in patients who are taking nitrates.

Did you know?

Human stomach acid is strong enough to dissolve small pieces of metal such as razor blades or staples.

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