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2. Great Melbourne Telescope - Wikipedia

   en.wikipedia.org/wiki/Great_Melbourne_Telescope

   With a 48 inch (1.2 metre) diameter primary mirror, it was one of the largest telescopes of the late 19th century. This is a significant size even into the 21st century, although the lower reflecting ability of speculum metal mirrors (about 2/3 reflected) makes them inferior to later metal-on-glass designs or large refractors.

3. Grubb Parsons - Wikipedia

   en.wikipedia.org/wiki/Grubb_Parsons

   Grubb Parsons (legally 'Sir Howard Grubb, Parsons and Co. Ltd.') was a historic manufacturer of telescopes, active in the 19th and 20th centuries.They built numerous large research telescopes, including several that were (at the time of construction) the largest in the world of their type.

4. George M. Stratton - Wikipedia

   en.wikipedia.org/wiki/George_M._Stratton

   George Malcolm Stratton (September 26, 1865 – October 8, 1957) was an American psychologist who pioneered the study of perception in vision by wearing special glasses which inverted images up and down and left and right.

5. Glenys Lloyd-Morgan - Wikipedia

   en.wikipedia.org/wiki/Glenys_Lloyd-Morgan

   Lloyd-Morgan remains the main authority on Roman mirrors, particularly those found in Britain. [5] [6] Her work on Roman mirrors, and other small finds, resulted in a prolific output of articles and finds reports, which remain the reference point for archaeological surveys of this material.

6. Objects in mirror are closer than they appear - Wikipedia

   en.wikipedia.org/wiki/Objects_in_mirror_are...

   It is present because while these mirrors' convexity gives them a useful field of view, it also makes objects appear smaller. Since smaller-appearing objects seem farther away than they actually are, a driver might make a maneuver such as a lane change assuming an adjacent vehicle is a safe distance behind, when in fact it is quite a bit closer ...

7. Glass recycling - Wikipedia

   en.wikipedia.org/wiki/Glass_recycling

   Bottles in different colours Mixed colour glass cullet Public glass waste collection point for different colours of containers. Glass recycling is the processing of waste glass into usable products. [1] Glass that is crushed or imploded and ready to be remelted is called cullet. [2] There are two types of cullet: internal and external.