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In the early 10th century, the Persian scientist al-Razi described ways of silvering and gilding in a book on alchemy, [citation needed] but this was not done for the purpose of making mirrors. Tin-coated mirrors were first made in Europe in the 15th century. The thin tinfoil used to silver mirrors was known as "tain". [5]
They set up six mirrors to bounce light back and forth down the length of the shop, using a spotlight as the source. Polished metal mirrors gave 1.13 lux, but caused the beam to spread out after only a few reflections. When modern glass mirrors were used instead, the light level registered at 0.49 lux and the beam stayed focused longer.
A mirror reflecting the image of a vase A first-surface mirror coated with aluminium and enhanced with dielectric coatings. The angle of the incident light (represented by both the light in the mirror and the shadow behind it) exactly matches the angle of reflection (the reflected light shining on the table). 4.5-metre (15 ft)-tall acoustic mirror near Kilnsea Grange, East Yorkshire, UK, from ...
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The official MythBusters website at one point sorted episodes by calendar year, but as of 2024, sorts them into 19 seasons (with the first being the three pilots). When the series was released on DVD , some seasons followed calendar years while others did not.
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One test (different from the included radio device), cut for time and shown on "MythBusters Outtakes", involves coils of baling wire being used to siphon off electricity from nearby PG&E power lines in the Santa Cruz Mountains. Adam, Jamie, and MIT electrical engineer Dr. Geo Homsy tested whether real free energy can be obtained using the ...
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