Did you know?
When Gabriel Fahrenheit invented the first mercury thermometer, he called "zero degrees" the lowest temperature he was able to attain with a mixture of ice and salt. For the upper point of his scale, he used 96°, which he measured as normal human body temperature (we know it to be 98.6° today because of more accurate thermometers).
Did you know?
People with high total cholesterol have about two times the risk for heart disease as people with ideal levels.
Did you know?
Approximately 25% of all reported medication errors result from some kind of name confusion.
Did you know?
Hippocrates noted that blood separates into four differently colored liquids when removed from the body and examined: a pure red liquid mixed with white liquid material with a yellow-colored froth at the top and a black substance that settles underneath; he named these the four humors (for blood, phlegm, yellow bile, and black bile).
Did you know?
Adult head lice are gray, about ? inch long, and often have a tiny dot on their backs. A female can lay between 50 and 150 eggs within the several weeks that she is alive. They feed on human blood.
Experiment on newt embryos that led to the discovery of Spemann's organizer.
Messelson-Stahl Experiment
question asked
How to find the distance of any line segment
Gently squeeze the tissues along the eyebrow line between your thumb and forefinger. Begin at the ...
Miller's Experiment