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Only 12 hours after an egg cell is fertilized by a sperm cell, the egg cell starts to divide. As it continues to divide, it moves along the fallopian tube toward the uterus at about 1 inch per day.

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Critical care patients are twice as likely to receive the wrong medication. Of these errors, 20% are life-threatening, and 42% require additional life-sustaining treatments.

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There can actually be a 25-hour time difference between certain locations in the world. The International Date Line passes between the islands of Samoa and American Samoa. It is not a straight line, but "zig-zags" around various island chains. Therefore, Samoa and nearby islands have one date, while American Samoa and nearby islands are one day behind. Daylight saving time is used in some islands, but not in others—further shifting the hours out of sync with natural time.

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

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In 1835 it was discovered that a disease of silkworms known as muscardine could be transferred from one silkworm to another, and was caused by a fungus.

A guinea pig being held A guinea pig being held
During World War I, advancing armies unloosed ferocious artillery barrages to destroy deeply entrenc During World War I, advancing armies unloosed ferocious artillery barrages to destroy deeply entrenc
Edmund Clark. Camp Five, Detainee's Cell, from the series Guantanamo: If the Light Goes Out, ... Edmund Clark. Camp Five, Detainee's Cell, from the series Guantanamo: If the Light Goes Out, ...
Concentration affects where the precipitin line forms. When 1 reactant is held at a constant ... Concentration affects where the precipitin line forms. When 1 reactant is held at a constant ...
An agglutination reaction. Antigen-coated latex beads are held together by antibody. In a direct ... An agglutination reaction. Antigen-coated latex beads are held together by antibody. In a direct ...
After elections were held, it was desired to estimate the proportion of voters who regretted ... After elections were held, it was desired to estimate the proportion of voters who regretted ...
Video: Fetal Development of the Cardiovascular System

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