Did you know?
The familiar sounds of your heart are made by the heart's valves as they open and close.
Did you know?
Certain topical medications such as clotrimazole and betamethasone are not approved for use in children younger than 12 years of age. They must be used very cautiously, as directed by a doctor, to treat any child. Children have a much greater response to topical steroid medications.
Did you know?
Elderly adults are living longer, and causes of death are shifting. At the same time, autopsy rates are at or near their lowest in history.
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Colchicine is a highly poisonous alkaloid originally extracted from a type of saffron plant that is used mainly to treat gout.
Did you know?
For about 100 years, scientists thought that peptic ulcers were caused by stress, spicy food, and alcohol. Later, researchers added stomach acid to the list of causes and began treating ulcers with antacids. Now it is known that peptic ulcers are predominantly caused by Helicobacter pylori, a spiral-shaped bacterium that normally exist in the stomach.
Noll's DNase-I digestion experiment, which verified the beads-on-a-string model of DNA compacti
Solomon's Seal
Spectral Line Motion in Binary Star Systems
Experimental Apparatus for Fluidization Experiment
Basic Design of the Driving and Cell Phone Distraction Experiment
The Taylor–Woods–Hughes experiment