The following warnings occurred:

Warning [2] Undefined variable $awaitingusers - Line: 33 - File: global.php(779) : eval()'d code PHP 8.1.28 (Linux) File Line Function /global.php(779) : eval()'d code 33 errorHandler->error /global.php 779 eval /printthread.php 16 require_once Warning [2] Undefined array key "style" - Line: 837 - File: global.php PHP 8.1.28 (Linux) File Line Function /global.php 837 errorHandler->error /printthread.php 16 require_once Warning [2] Undefined property: MyLanguage::$lang_select_default - Line: 4950 - File: inc/functions.php PHP 8.1.28 (Linux) File Line Function /inc/functions.php 4950 errorHandler->error /global.php 837 build_theme_select /printthread.php 16 require_once Warning [2] Undefined array key "showimages" - Line: 174 - File: printthread.php PHP 8.1.28 (Linux) File Line Function /printthread.php 174 errorHandler->error Warning [2] Undefined array key "showvideos" - Line: 179 - File: printthread.php PHP 8.1.28 (Linux) File Line Function /printthread.php 179 errorHandler->error Warning [2] Undefined variable $css_align - Line: 1147 - File: inc/class_parser.php PHP 8.1.28 (Linux) File Line Function /inc/class_parser.php 1147 errorHandler->error /inc/class_parser.php 1174 postParser->mycode_parse_img [PHP]   postParser->mycode_parse_img_callback2 /inc/class_parser.php 481 preg_replace_callback /inc/class_parser.php 177 postParser->parse_mycode /printthread.php 184 postParser->parse_message Warning [2] Undefined array key "showimages" - Line: 174 - File: printthread.php PHP 8.1.28 (Linux) File Line Function /printthread.php 174 errorHandler->error Warning [2] Undefined array key "showvideos" - Line: 179 - File: printthread.php PHP 8.1.28 (Linux) File Line Function /printthread.php 179 errorHandler->error Warning [2] Undefined array key "showimages" - Line: 174 - File: printthread.php PHP 8.1.28 (Linux) File Line Function /printthread.php 174 errorHandler->error Warning [2] Undefined array key "showvideos" - Line: 179 - File: printthread.php PHP 8.1.28 (Linux) File Line Function /printthread.php 179 errorHandler->error

Artificial Skylight - Printable Version +- High Frontier Forums (http://highfrontier.com/forum) +-- Forum: General (http://highfrontier.com/forum/forumdisplay.php?fid=1) +--- Forum: Real Space (http://highfrontier.com/forum/forumdisplay.php?fid=16) +--- Thread: Artificial Skylight (/showthread.php?tid=11)

Artificial Skylight - JoeStrout - 03-11-2015 Check out this article: Making a Second Sun: Scientists Make Artificial Skylight That You Won't Believe. It describes a new technique for making a very realistic skylight.  The designers have in mind to apply it to underground rooms, or interior rooms in large buildings.  But I wonder if something like this, scaled up considerably, could serve as an artificial sky within a space colony? What do you think? RE: Artificial Skylight - Pye-rate - 09-18-2015 The problem is lumens. The farther from the light source the more lumens needed. I cannot see this being usable past 3 meters. The idea is good, but something that does the same at a greater level. Stadium lighting is the closest we have now. My random rambling around science pages the stuff in lab is amazing, it will come. RE: Artificial Skylight - LisaPuig - 06-19-2018 Artificial skylight is the new way to brighten up a dark and windowless room that may be at underground where the sunlight can’t reach directly. It utilizes nanotechnology to simulate natural light – right down to the color and temperature – to create the convincing illusion of sunlight. This becomes a common method now.  I think it’s a better idea to illuminate dark rooms.