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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).
The Romans did not use numerals to indicate fractions but instead used words to indicate parts of a whole.
More than 150,000 Americans killed by cardiovascular disease are younger than the age of 65 years.
Cocaine was isolated in 1860 and first used as a local anesthetic in 1884. Its first clinical use was by Sigmund Freud to wean a patient from morphine addiction. The fictional character Sherlock Holmes was supposed to be addicted to cocaine by injection.
Though “Krazy Glue” or “Super Glue” has the ability to seal small wounds, it is not recommended for this purpose since it contains many substances that should not enter the body through the skin, and may be harmful.
![Appendectomy. The appendix and cecum are brought through the incision to the surface of the abdomen.](https://biology-forums.com/gallery/47/medium_14755_30_09_12_4_40_41_9150995.jpeg)
![Scaling the Earth down to the size of a basketball, the Moon is roughly the size of a tennis ball. T](https://biology-forums.com/gallery/47/medium_12359_23_01_13_7_13_34.png)