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| | Radioactive Dating Explained |
 | | Carbon 14 dating is of limited use to geologists. |
 | | The earth's atmosphere is made up of nitrogen (78 percent), oxygen (21 percent), argon (0.9 percent), carbon dioxide (0.03 percent), varying amounts of water vapor, and trace amounts of hydrogen, ozone, methane, carbon monoxide, helium, neon, krypton, and xenon. |
 | | Similarly, e is the number that is always involved when computing “natural response.” Whether you are computing the motion of a mass on a spring, water flowing out of the hole in a bucket, the voltage of a discharging capacitor, or radioactive decay, the number e appears in the equation. |
| www.ridgenet.net /~do_while/sage/v4i10f.htm (2533 words) |
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