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Cancer has been around as long as humankind, but only in the second half of the twentieth century did the number of cancer cases explode.

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Bisphosphonates were first developed in the nineteenth century. They were first investigated for use in disorders of bone metabolism in the 1960s. They are now used clinically for the treatment of osteoporosis, Paget's disease, bone metastasis, multiple myeloma, and other conditions that feature bone fragility.

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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.

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The people with the highest levels of LDL are Mexican American males and non-Hispanic black females.

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The first documented use of surgical anesthesia in the United States was in Connecticut in 1844.

The same star field photographed with (a) a ground-based telescope, which is subject to poor seeing The same star field photographed with (a) a ground-based telescope, which is subject to poor seeing
The pH scale is logarithmic. A low pH indicates acidic conditions, whereas a high pH indicates ... The pH scale is logarithmic. A low pH indicates acidic conditions, whereas a high pH indicates ...
Income per Capita versus Total Fertility Rate Income per Capita versus Total Fertility Rate
Agricultural Land as a Fraction of Total Wealth in the United Kingdom Agricultural Land as a Fraction of Total Wealth in the United Kingdom
Stock Market Tracks Growth in GDP Stock Market Tracks Growth in GDP
The total weight of Peter, David and Henry is 123 kg, Peter is 15 kg heavier than David. David ... The total weight of Peter, David and Henry is 123 kg, Peter is 15 kg heavier than David. David ...
Video: DNA close up Animation

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