Did you know?
A good example of polar molecules can be understood when trying to make a cake. If water and oil are required, they will not mix together. If you put them into a measuring cup, the oil will rise to the top while the water remains on the bottom.
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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).
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The term bacteria was devised in the 19th century by German biologist Ferdinand Cohn. He based it on the Greek word "bakterion" meaning a small rod or staff. Cohn is considered to be the father of modern bacteriology.
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The human body produces and destroys 15 million blood cells every second.
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Looking at the sun may not only cause headache and distort your vision temporarily, but it can also cause permanent eye damage. Any exposure to sunlight adds to the cumulative effects of ultraviolet (UV) radiation on your eyes. UV exposure has been linked to eye disorders such as macular degeneration, solar retinitis, and corneal dystrophies.
A purse made from a cane toad.
Purse cover, from the Sutton Hoo burial ship.
Active Compared with Passive Voice
Apply passive touch over abdomen to finish. Slow the circle stroke you performed in Step 14, and let ...
Passive touch on shoulders to end. Hold for 5 to 10 seconds.
Passive Reabsorption in the late PCT