Miscellania

1. Etruscans invented false teeth around 700 BC.

2. Surface water, such as rivers, streams, lakes, and reservoirs, supplies 71 percent of the nation's water use, 2/3 of which returns to the ocean.

3. Neutrinos are ghostlike particles that have no mass or electrical charge and can hurtle with ease through the entire earth.

4. "Science will stagnate if it is made to serve practical goals." (Einstein)

5. Pioneer 10 became the first spacecraft to travel outside the orbit of known planets, on June 13, 1983.

6. Cut by the Colorado River, the Grand Canyon is 227 miles long and nine miles wide in places.

7. According to Indian legend, the leave in fall turn red because heavenly hunters killed a celestial bear and his blood is dripping on the trees.

8. 15 percent of the population is painfully shy.

9. Massa, a lowland gorilla, died at the age of 54 in the Phialdelphia Zoo in 1985.

10. Prostrate cancener can be treated with surgery, hormone treatment, radiation, or anti-cancer drugs.