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Author Question: The diagram below shows the demand and marginal revenue curves for a perfectly price discriminating ... (Read 83 times) |
Egg cells are about the size of a grain of sand. They are formed inside of a female's ovaries before she is even born.
The longest a person has survived after a heart transplant is 24 years.
There are more bacteria in your mouth than there are people in the world.
Dogs have been used in studies to detect various cancers in human subjects. They have been trained to sniff breath samples from humans that were collected by having them breathe into special tubes. These people included 55 lung cancer patients, 31 breast cancer patients, and 83 cancer-free patients. The dogs detected 54 of the 55 lung cancer patients as having cancer, detected 28 of the 31 breast cancer patients, and gave only three false-positive results (detecting cancer in people who didn't have it).
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).