Web Results

en.wikipedia.org/wiki/Darkness

Darkness, the polar opposite to brightness, is understood as a lack of illumination or an ... One scientific measure of darkness is the Bortle Dark-Sky Scale, which indicates the night sky's and stars' brightness at a particular location, and the ...

science.howstuffworks.com/dictionary/astronomy-terms/speed-of-darkness.htm

We know that darkness is a force all it's own, but how would we measure it's speed? Learn if the speed of darkness exists at HowStuffWorks.

arxiv.org/abs/1002.1311

Feb 8, 2010 ... We show that current data can put no significant constraints on the value of the sound speed when dark energy is purely a recent phenomenon, ...

www.physicsforums.com/threads/is-there-a-speed-of-darkness.101443

The speed of darkness has been measured as negative 300,000 km/s. :) Tide, Nov 26, 2005. Nov 26, 2005 #8 ...

www.quora.com/Is-it-possible-to-calculate-the-speed-of-darkness

I would say it was very slow as for many tthousands of years, it has been predicted that the ... Assuming that you're measuring the full absence of light, it would be take the same time for light to enter a room. This is because it will take time for ...

www.scientificamerican.com/article/cosmic-speed-measurement-suggests-dark-energy-mystery

Apr 11, 2016 ... A new measurement of how fast space is expanding disagrees with estimates based on the early universe, potentially pointing toward a break ...

www.askamathematician.com/2013/02/q-is-darkness-a-wave-the-way-light-is-a-wave-what-is-the-speed-of-dark

Feb 14, 2013 ... If you define the speed of dark to be the speed at which you could find .... Darkness is an invisible energy that we can't measure because we ...

pdfs.semanticscholar.org/e0ec/a9e760681b3e7d4574ae2c1a11fa03c8a08e.pdf

May 10, 2010 ... Measuring the speed of dark: Detecting dark energy perturbations. Roland de Putter,1 Dragan Huterer,2 and Eric V. Linder1,3. 1Berkeley Lab ...

gizmodo.com/whats-the-speed-of-dark-1791292842

Jan 24, 2017 ... Today, we're wondering about the “speed of dark,” and for that matter, ... First measured by Danish astronomer Olaus Roemer in 1676, it was ...