Guest
Race Result Details |
| Racer | Nursultan (nurs1) |
| Race Number | 300 |
| Date | Wed, 28 Jun 2017 11:42:04 |
| Speed |
57 WPM
 Try to beat?
|
| Accuracy | 95.4% |
| Rank | 1st place (out of 3) |
| Opponents | staslee (2nd place) |
Text typed:
|
A refracting telescope uses a lens instead of a mirror to focus the incoming light, relying on refraction rather than reflection to achieve its purpose. Refraction is the bending of a beam of light as it passes from one transparent medium (for example, air) into another (such as glass).
— (book)
by Eric Chaisson, Steve McMillan
(see stats)
|