There are over 65,000 known species of protozoa. About 10,000 species are parasitic.
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Every 10 seconds, a person in the United States goes to the emergency room complaining of head pain. About 1.2 million visits are for acute migraine attacks.
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The first oral chemotherapy drug for colon cancer was approved by FDA in 2001.
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Human stomach acid is strong enough to dissolve small pieces of metal such as razor blades or staples.
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In 1864, the first barbiturate (barbituric acid) was synthesized.
Role of binding energy in catalysis
A turbocharger uses some of the heat energy that would normally be wasted.
Rotation of the spine
How much energy is required to form 141.8 g of Cl2, according to the reaction below? The molar ...
molecular orbital theory
A baseball (1 kg) has an energy of 100 joules. If its uncertainty in position is 1 m, what is ...