We are going off topic.
Does light have a decay factor?
Has Light got a decay factor?
Sort:
Thanks HolographWars. A photon ages, it loses energy every time its clock ticks and exactly the same amount each tick., thus all the redshift we see and every photon no matter from where does exactly the same thing. That fits the observations about as well as any theory. If you would like to understand more , please ask any question .
...and yet more wasted money to prove the existence of Dark Matter when there is more than enough 'proof' after decades of searching by numerous countries that it doesn't exist.
https://www.theguardian.com/science/2018/sep/03/scientists-hunt-for-dark-force-to-discover-what-the-universe-is-made-of
That's right IKTM. Dark Matter need not exist if one allows the gravitons to increase their rate of exchange in a given time period. Just double the rate and you increased the strength of gravity by a factor of two. That's good in our solar system and other systems and a factor of 10 between galaxies is all that one needs.
...wouldn't it be cool if u got in a 20 ft cubed mirror room (don't 4git ur roller skates) & let one 12" long x 1" dia pastel blue light beam in ?
Would the whole room turn blue in no time ?
This Is Why There Are No Alternatives To The Big Bang
“For more than 50 years, no alternative has been able to deliver on all four counts. No alternative can even deliver the Cosmic Microwave Background as we see it today. It isn't for lack of trying or a lack of good ideas; it's because this is what the data indicates. Scientists don't believe in the Big Bang; they conclude it based on the full suite of observations. The last adherents to the ancient, discredited alternatives are at last dying away. The Big Bang is no longer a revolutionary endpoint of the scientific enterprise; it's the solid foundation we build upon. Its predictive successes have been overwhelming, and no alternative has yet stepped up to the challenge of matching its scientific accuracy in describing the Universe.”
See link for the full article
https://www.forbes.com/sites/startswithabang/2018/09/04/this-is-why-there-are-no-alternatives-to-the-big-bang/#5c93040d1cc5
Gee, KayakOrca. We just said the CMB was aging photons. If so that would make your comments and the article you sighted worthless. Do you know what the Cosmic Microwave Background is ? Oh! Blue at first , then yellow after a while.
Sep 5, 2018
0
#4709
RPaulB wrote:
Gee, KayakOrca. We just said the CMB was aging photons. If so that would make your comments and the article you sighted worthless. Do you know what the Cosmic Microwave Background is ? Oh! Blue at first , then yellow after a while.
Cosmic Microwave Background is what heats your heavenly burrito!
NO, No, you are to READ the comment, not copy it. And if you know , why don't you tell us more about CMB. KO didn't.
What is the cosmic microwave background?
The cosmic microwave background (or CMB) fills the entire Universe and is leftover radiation from the Big Bang. When the Universe was born, nearly 14 billion years ago, it was filled with hot plasma of particles (mostly protons, neutrons, and electrons) and photons (light). In particular, for roughly the first 380,000 years, the photons were constantly interacting with free electrons, meaning that they could not travel long distances. That means that the early Universe was opaque, like being in fog.
However, the Universe was expanding and as it expanded, it cooled, as the fixed amount of energy within it was able to spread out over larger volumes. After about 380,000 years, it had cooled to around 3000 Kelvin (approximately 2700ºC) and at this point, electrons were able to combine with protons to form hydrogen atoms, and the temperature was too low to separate them again. In the absence of free electrons, the photons were able to move unhindered through the Universe: it became transparent.
Over the intervening billions of years, the Universe has expanded and cooled greatly. Due to the expansion of space, the wavelengths of the photons have grown (they have been ‘redshifted’) to roughly 1 millimetre and thus their effective temperature has decreased to just 2.7 Kelvin, or around -270ºC, just above absolute zero. These photons fill the Universe today (there are roughly 400 in every cubic centimetre of space) and create a background glow that can be detected by far-infrared and radio telescopes.
https://www.esa.int/Our_Activities/Space_Science/Planck/Planck_and_the_cosmic_microwave_background
Good job, KO.
Not much new stuff reported recently in the press . The *Daily Mail however produced an article to highlight the possibility of water on one of the worlds around Alpha Centauri but also MAY NOT have water on it's surface. ACE reporting from the Daily Mail there.
*U.K paper
....good2know.
Ok so where did all this stuff come from, it didn't just roll over and become something - nothing comes from nothing, Right! and don't tell me it always existed. That doesn't wash today. Einstein & Newton believed in a Steady State universe because they posited a force that held it all together. Namely God: Einstein deism, Newton Theism.
http://blogs.discovermagazine.com/crux/2018/09/21/the-dark-matter-crisis/#.W6enlf5wa74
Even the best theories are crumbling !
https://www.wired.co.uk/article/dark-matter-worth-searching-for-null-results
A well written article on Dark Matter...or rather the lack of it.
Pretty easy to explain the extra gravity some places. What is hard is how to find anyone interested in the explanation. The article above wants to tell you they have NO IDEA HOW. And are not interested in what you might TELL them !!!!
If Dark Matter or Dark Energy exist then the Horizons space craft that pictured Pluto would have missed it's target. No account ,whatsoever, was given to their existence in the calculations for Horizon . 95% of the universes Mass is attributed to these Dark Forces but if their existence is so slight as to not effect the path of the space craft then they can't make up 95% of matter.
An interesting article on the speed of light but it got me thinking about 'Dark Matter' and where and what it might be if it exists at all.
The sun loses 4 Million Tonnes of mass per second apparently. It must lose that mass in the forms of both energy (light ,radiation etc) and particles which have mass Neutrinos etc . The light leaves our solar system but most of the fundamental particles that have mass may ,perhaps, be held within the solar system by the Heliospause at the edge of our solar system by the 'cosmic wind' that Voyager 1 and 2 have encountered before entering Interstellar space. Is it possible that the 'missing' matter attributed to 'Dark Matter' is actually held in fundamental particles that are held in each solar system throughout the galaxy ? That 4 Million Tonnes of matter per second held in fundamental particles multiplied by 4.5 Billion years would add up to ooooww ..erm...shed loads.
Edit...
Not that it needs to be held in each solar system. Imagine 200 Billion stars spewing out Trillions of tonnes of matter each second for billions of years into the galaxy. That's alot of matter. Alot of unseen matter !...alot of 'Dark Matter' ...!!
https://www.express.co.uk/news/science/998080/Alien-news-SETI-UFO-hunters-Rio-scale?utm_source=traffic.outbrain&utm_medium=traffic.outbrain&utm_term=traffic.outbrain&utm_content=traffic.outbrain&utm_campaign=traffic.outbrain
Just an aside. There will be intelligent aliens out there,in my opinion, but it's unlikely the human race will meet them in our life time. Which is a shame.