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2. Timeline of Solar System astronomy - Wikipedia

   en.wikipedia.org/wiki/Timeline_of_Solar_System...

   1609 – Galileo Galilei starts to make telescopes with about 3x up to 30x magnification, based only on descriptions of the first practical telescope which Hans Lippershey tried to patent in the Netherlands in 1608. [80]

3. Magnification - Wikipedia

   en.wikipedia.org/wiki/Magnification

   Stepwise magnification by 6% per frame into a 39-megapixel image. In the final frame, at about 170x, an image of a bystander is seen reflected in the man's cornea. Magnification is the process of enlarging the apparent size, not physical size, of something. This enlargement is quantified by a size ratio called optical magnification.

4. Aperture - Wikipedia

   en.wikipedia.org/wiki/Aperture

   Magnification and demagnification by lenses and other elements can cause a relatively large stop to be the aperture stop for the system. In astrophotography , the aperture may be given as a linear measure (for example, in inches or millimetres) or as the dimensionless ratio between that measure and the focal length .

5. Explainer-What is US birthright citizenship and can ... - AOL

   www.aol.com/news/explainer-us-birthright...

   Donald Trump has said he plans to end birthright citizenship as part of his promised crackdown on immigration when he becomes president on Jan. 20. Below is a look at U.S. birthright citizenship ...

6. Loupe - Wikipedia

   en.wikipedia.org/wiki/Loupe

   A typical magnification for use in dentistry is 2.5×, but dental loupes can be anywhere in the range from 2× to 8×. [15] Optimal magnification is a function of the type of work the doctor does - namely, how much detail he or she needs to see, taking into consideration that when magnification increases, the field of view decreases.

7. As a pet writer and pet parent here is a list of things I ...

   www.aol.com/pet-writer-pet-parent-list-090000199...

   When it comes to things pet owners can’t resist buying we’ve done our research to bring you a whole lot of fun stuff — plus a few things you never knew you needed!