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During the twentieth century, a variant of the metric system was used in Russia and France in which the base unit of mass was the tonne. Instead of kilograms, this system used millitonnes (mt).

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Although the Roman numeral for the number 4 has always been taught to have been "IV," according to historians, the ancient Romans probably used "IIII" most of the time. This is partially backed up by the fact that early grandfather clocks displayed IIII for the number 4 instead of IV. Early clockmakers apparently thought that the IIII balanced out the VIII (used for the number 8) on the clock face and that it just looked better.

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Intradermal injections are somewhat difficult to correctly administer because the skin layers are so thin that it is easy to accidentally punch through to the deeper subcutaneous layer.

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About 3.2 billion people, nearly half the world population, are at risk for malaria. In 2015, there are about 214 million malaria cases and an estimated 438,000 malaria deaths.

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The average adult has about 21 square feet of skin.

A lilac, orange and white Satin Peruvian guinea pig (show-length coat) A lilac, orange and white Satin Peruvian guinea pig (show-length coat)
Posterior views of H. erectus, Neandertal, and modern H. sapiens show differences in vault shape. Posterior views of H. erectus, Neandertal, and modern H. sapiens show differences in vault shape.
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The scan tool can display various voltage but will often show 3.3 volts because the PCM is ... The scan tool can display various voltage but will often show 3.3 volts because the PCM is ...
Horizontal, sagittal, and coronal functional MRIs show areas of increased activity in the primary ... Horizontal, sagittal, and coronal functional MRIs show areas of increased activity in the primary ...
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