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).
—from Astronomy: A Beginner's Guide to the Universe (7th Edition), a book by Eric Chaisson, Steve McMillan
Active since January 13, 2017.
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Universe | Races | Average WPM | First Race |
---|---|---|---|
Default (English) | 13,168 | 76.46 | January 13, 2017 |
Instant Death Mode | 11 | 114.62 | January 21, 2019 |
ᗜ Stenography | 11 | 58.91 | September 10, 2020 |