Amazing fact about the invention of the lighter
The cigarette lighter was invented before the match.
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- What went wrong with the Hubble Space Telescope?
“After the Hubble Space Telescope launched in 1990, scientists discovered that its main mirror was slightly misshapen. Astronauts fixed it with corrective optics in 1993.”
Reference: NASA
More from this shelf
Who invented the telescope?
Dutch eyeglass maker Hans Lipperhey applied for the first known patent for a telescope in 1608.
What is the Hubble Deep Field?
In 1995, the Hubble Space Telescope stared at a tiny, seemingly empty patch of sky and revealed thousands of galaxies in what's called the Hubble Deep Field image.