Light Screens
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Ponderosa Pine Windows Sash and Screens using Single Glass and Insulating Glass
Author | : Anonim |
Publsiher | : Unknown |
Total Pages | : 20 |
Release | : 1965 |
Genre | : Sashes |
ISBN | : UOM:39015095315175 |
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Light Screens
Author | : Anonim |
Publsiher | : Unknown |
Total Pages | : 135 |
Release | : 1994 |
Genre | : Electronic Book |
ISBN | : 9990065314 |
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Official Gazette of the United States Patent Office
Author | : United States. Patent Office |
Publsiher | : Unknown |
Total Pages | : 1002 |
Release | : 1903 |
Genre | : Patents |
ISBN | : WISC:89048454995 |
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Parenting Generation Screen
Author | : Jonathan McKee |
Publsiher | : Focus on the Family |
Total Pages | : 209 |
Release | : 2021-08 |
Genre | : RELIGION |
ISBN | : 9781646070251 |
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How do you keep your kids safe in a digital world? Maybe your kids are like so many others these days-too often glued to their smartphones, social media, and streaming entertainment-and you're worried. Or maybe you're wondering how to avoid digital overload. You definitely want your kids to use devices wisely...but how do you -teach them to do that? Many parents wonder: At what age should I buy my kid a phone? How long should I allow my kid to play video games each day? How can I keep my kids safe with the screens they already have? At what age should I allow my kids on social media? What if my teen insists on having their device in their bedroom at night? Parenting Generation Screen will not only equip you to set practical screen limits for your kids but also show you how to engage in meaningful conversations with your kids so they learn to be wise in the digital world. Jonathan's expert advice draws upon more than twenty years of working with teenagers and writing about the influence of digital media as well as his experiences in raising three kids (with plenty of devices!). Book jacket.
Physical and Optical Properties of Projection Screens
Author | : Robert J. Klaiber |
Publsiher | : Unknown |
Total Pages | : 64 |
Release | : 1966 |
Genre | : Electronic Book |
ISBN | : CORNELL:31924004624742 |
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The scattered, inconsistent and incomplete data in the literature have prompted a comprehensive study of the physical and optical properties of projection screens. A large sample number of front and rear projection screens was obtained, representing the industry line of January 1965. The reflected and transmitted flux distribution of each sample was measured using a small, collimated test beam of white light incident normally and at 45 degrees. A vacuum photodetector, spectrally matched to the eye, was situated on a radius arm and capable of viewing the test sample at any angle in a plane. The reflectance or transmittance of the samples was calculated using data from the measured reflected flux distribution of an easily reproduced magnesium oxide standard. Measurements were made of resolving power and physical properties, and the maximum angular viewing field of each screen was determined for a typical projection geometry and tolerable field brightness gradient. (Author).
Investigation of Light Source and Scattering Medium Related to Vapor screen Flow Visualization in a Supersonic Wind Tunnel
Author | : W. L. Snow |
Publsiher | : Unknown |
Total Pages | : 74 |
Release | : 1984 |
Genre | : Supersonic wind tunnels |
ISBN | : NASA:31769000563927 |
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NASA Technical Note
Author | : Anonim |
Publsiher | : Unknown |
Total Pages | : 684 |
Release | : 1963 |
Genre | : Aeronautics |
ISBN | : UCAL:B3534270 |
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Evaluation of a Radiographic Paper System Using Ultraviolet Fluorescent Screens
Author | : J. A. Holloway,T. R. Henderson |
Publsiher | : Unknown |
Total Pages | : 98 |
Release | : 1972 |
Genre | : Fluorescent screens |
ISBN | : UOM:39015095328962 |
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