|
|
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).
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.
The people with the highest levels of LDL are Mexican American males and non-Hispanic black females.
In the United States, there is a birth every 8 seconds, according to the U.S. Census Bureau's Population Clock.
The familiar sounds of your heart are made by the heart's valves as they open and close.