The Babylonians wrote numbers in a system that used 60 as the base value rather than the number 10. They did not have a symbol for "zero."
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There are approximately 3 million unintended pregnancies in the United States each year.
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Cyanide works by making the human body unable to use oxygen.
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Automated pill dispensing systems have alarms to alert patients when the correct dosing time has arrived. Most systems work with many varieties of medications, so patients who are taking a variety of drugs can still be in control of their dose regimen.
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Human neurons are so small that they require a microscope in order to be seen. However, some neurons can be up to 3 feet long, such as those that extend from the spinal cord to the toes.
Spectra of a Metal-Poor and a Metal-Rich Star
Success, You Rock, Achievement
A typical 12 volt test light.
A typical purified water system
Typical box used for the disposal of bagged, sealed, and autoclaved biological waste.