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Author Question: These types of images are views of the earth the way an astronaut would see our planet from space. ... (Read 74 times) |
Pope Sylvester II tried to introduce Arabic numbers into Europe between the years 999 and 1003, but their use did not catch on for a few more centuries, and Roman numerals continued to be the primary number system.
Vampire bats have a natural anticoagulant in their saliva that permits continuous bleeding after they painlessly open a wound with their incisors. This capillary blood does not cause any significant blood loss to their victims.
One way to reduce acid reflux is to lose two or three pounds. Most people lose weight in the belly area first when they increase exercise, meaning that heartburn can be reduced quickly by this method.
The familiar sounds of your heart are made by the heart's valves as they open and close.
More than 150,000 Americans killed by cardiovascular disease are younger than the age of 65 years.