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Portal 2 is a 2011 puzzle-platform game developed by Valve for Windows, Mac OS X, Linux, PlayStation 3, and Xbox 360.The digital PC version is distributed online by Valve's Steam service, while all retail editions were distributed by Electronic Arts.
The top and bottom images produce a dent or projection depending on whether viewed with cross- () or wall- () eyed vergence. An autostereogram is a two-dimensional (2D) image that can create the optical illusion of a three-dimensional (3D) scene. Autostereograms use only one image to accomplish the effect while normal stereograms require two.
Cosmic ray visual phenomena, or light flashes ( LF ), also known as Astronaut's Eye, are spontaneous flashes of light visually perceived by some astronauts outside the magnetosphere of the Earth, such as during the Apollo program. While LF may be the result of actual photons of visible light being sensed by the retina, [1] the LF discussed here ...
When you’re not up to getting too physical, there are other ways to give your hand-eye coordination a boost. Here are some options: Bouncing a ball. Playing catch. Playing video games. Learning ...
Minnesota Gov. Tim Walz, the vice-presidential running mate of Democratic presidential nominee Kamala Harris, has spoken openly and lovingly about his 17-year-old son Gus, who has ADHD, along with ...
Take a nap. Take a day off. Call in sick,” Schabram said. Choose healthy self-care options: Beer, wine and comfort foods are frequent choices for kicking back, but they are not the healthiest ...
The Active Denial System ( ADS) is a non-lethal directed-energy weapon developed by the U.S. military, [ 2] designed for area denial, perimeter security and crowd control. [ 3] Informally, the weapon is also called the heat ray[ 4] since it works by heating the surface of targets, such as the skin of targeted human beings.
These are the items Americans lose most. Perhaps unsurprisingly, the most commonly lost items were also among the most ubiquitous and important: phones and keys. Most people don't leave home ...