2520d 4pc Telescope Display
Product Description
24 PIECE TELESCOPING INSPECTION POCKET MIRROR - For fast and accurate visual inspection of hidden areas. Features all angle double ball joint that links the mirror to the handle for 360deg. viewing, but firmly holds position. Mirrors are copper-backed with stainless steel frames.
2520d 4pc Telescope Display

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The James Webb Space Telescope features a mirror 21.3 feet (6.5 m) across, with nearly seven times the area of the famed Hubble Space Telescope. In order to launch something this size, NASA designed the primary mirror to consist of 18 separate, hexagon-shaped mirrors that will fold up inside the rocket that carries the telescope into space. The mirror components are being tested both individually and together. A specially designed vacuum chamber at Marshall Space Flight Center simulates the extreme conditions of space, subjecting the mirror segments to temperatures as low as 400 degrees below zero. Related links: Webb Technology Challenge: Make it Big Webb Technology Challenge: Keep it Cold Outside links: NASA image gallery: NASA Chills: James Webb Space Telescope Mirrors Are Readied for Test NASA news release: Mirror Testing at NASA Breaks Superstitious Myths

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