Forum discussions with the word (s) 'superluminal' in the title: No titles with the word (s) 'superluminal'. super - + Latin lmin-, stem of lmen light + - al1. Astronomy appearing to travel faster than the speed of light. These example sentences are selected automatically from various online news sources to reflect current usage of the word 'lumen.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. superluminal (soopr loo m nl), USA pronunciation. Supernova - Destructive explosion of a star. Supermassive black hole - Black hole located at the center of a galaxy containing millions or billions of solar masses. 2021 Turbo 1,000 lumen mode can potentially startle intruders. Kkriplovich Superluminal Velocity of Photons in a Gravitational Background. Superluminal motion - Movement that looks to be faster than the speed of light. But it’s fundamental, rst, to provide an adequate def-inition of superluminal travel, which is no trivial matter 6,7. 2021 Typically, the higher the lumen count-which for headlamps can range from the low hundreds into the thousands-the brighter the light. One is liable to ask if it is possible to have superluminal travel without the violation of the WEC. 2021 Despite its smaller design, the 360-degree speaker delivers crisp, clear sound, while the 100 ANSI- lumen image brings excellent detail to every screen. Silva, Forbes, 6 June 2021 The Coleman 600 lumen LED lantern is a great accessory for your camping trips and a top camping gift. 2021 This is a superb short-throw 4K projector that delivers up to 30,000 hours of entertainment with a bright 3,000 lumen bulb.ĭave Johnson, Forbes, 21 June 2021 The endothelial cells that make up these tiny blood vessels form a regulated barrier between the blood on one side (the lumen side of the blood vessels) and the chemical environment the brain and spinal cord float in on the other side. 2020 To that end, the researchers recommended evaluating lumen depreciation as well as catastrophic failures caused by broken electrical connections or other component failures. Superluminal speeds such as this present no problem once we recognise three types of speed associated with wave motion: phase velocity, group velocity, and signal velocity. Recent Examples on the Web On a mechanistic level, unabsorbed polyols draw water out of your body and into your gut lumen, resulting in loose, watery stools.