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Did you know?

The most dangerous mercury compound, dimethyl mercury, is so toxic that even a few microliters spilled on the skin can cause death. Mercury has been shown to accumulate in higher amounts in the following types of fish than other types: swordfish, shark, mackerel, tilefish, crab, and tuna.

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The modern decimal position system was the invention of the Hindus (around 800 AD), involving the placing of numerals to indicate their value (units, tens, hundreds, and so on).

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Liver spots have nothing whatsoever to do with the liver. They are a type of freckles commonly seen in older adults who have been out in the sun without sufficient sunscreen.

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Patients who have undergone chemotherapy for the treatment of cancer often complain of a lack of mental focus; memory loss; and a general diminution in abilities such as multitasking, attention span, and general mental agility.

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The average human gut is home to perhaps 500 to 1,000 different species of bacteria.

Cystoscopy. In this procedure, a specialized endoscope with a rigid tube, known as a cystoscope, is Cystoscopy. In this procedure, a specialized endoscope with a rigid tube, known as a cystoscope, is
The bones of the skeleton. The skeleton, anterior view. The bones of the skeleton. The skeleton, anterior view.
One of the cultural privileges of being white in the United States is less suspicion of wrongdoing. One of the cultural privileges of being white in the United States is less suspicion of wrongdoing.
An exploded view of a gerotor electric fuel pump. An exploded view of a gerotor electric fuel pump.
Earth emits radiation back out to space from all surfaces, both day and night Earth emits radiation back out to space from all surfaces, both day and night
Right lateral view of skull Right lateral view of skull
Video: Erythropoietin (EPO)

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