Results for: Cosmic-inflation

Answered

What are the cosmic rays?

Cosmic rays are very high-energy particles, mostly originating from outside the solar system. Mainly they are composed of protons, alpha particles, or other atomic nuclei;… (MORE)

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Quirkyquantummechanic

133,406 Contributions

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In Astronomy

What are cosmic rays?

Cosmic rays are a type of radiation we experience that originates in outer space. The catch is that they really aren't "rays" as we know them, but are actually particulate rad… (MORE)

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In Science

What does cosmic means?

of or from or pertaining to or characteristic of the cosmos or universe; "cosmic laws"; "cosmic catastrophe"; "cosmic rays"inconceivably extended in space or time

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Cosmospup

96,851 Contributions

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In Astronomy

What is a cosmic year?

The galactic year, also known as a cosmic year, is the duration of time required for the solar system to orbit once around the centre of the Milky Way galaxy. Estimates of the… (MORE)

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Willtill

146 Contributions

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In Economics

How do you get inflated?

get a wetsuit it up with water for a long time let one of your friends take a picture so they can show it to you

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In Uncategorized

What is better the you phone 5c or 5s?

the 5s because it has better service but it dosent have diffrent colrs just silver gold and black

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Lachlan Newland

77 Contributions

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In Inflation

What is a inflatation?

Quoted from Wikipedia.org In economics, inflation is a rise in the general level of prices of goods and services in an economy over a period of time. When the general price le… (MORE)

Idan Arie-li

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In Prison Incarceration

What is cosmic prison about?

it is about a lion that live in a jungle but was raised by monkeys. you should really read it its extremely interesting. I love it so much that I read it everyday!

Pr77x

10,462 Contributions

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In Big Bang Theory (scientific model)

What is cosmic inflation and how does it solve the horizon and flatness problems?

First, let's define terms. The "horizon problem" is the fact that the observable Universe is too uniform. If one does calculations based on simple Big Bang Cosmology… -- ie, that the present rate of expansion ("Hubble Expansion") is the rate that has existed since the start of time -- then our Universe did not have enough time to reach the mass density uniformity we see today. It's as if we, while planning to make some iced tea, placed a pan of boiling water a meter away from a pitcher of ice, turned away for one second, and then found the water in both containers was now at room temperature. You'd have every right to ask, "How did they reach equilibrium that quickly?" The "flatness problem" is the fact that the mass density of our Universe is SO CLOSE to the amount that permits stars to form. A Universe more dense than ours would have collapsed in on itself in less than a billion years, and a Universe less dense would have resulted in matter so thin that galaxies would have never formed. In both cases, no heavy elements would have formed in rings around stars, meaning no life could exist. The ratio of the actual mass density and the density that would permit life in our Universe is called Ω. Again, if one does calculations based on simple Big Bang Cosmology, Ω can differ from one by less than 10^-16 (yes, that's a decimal point followed by FIFTEEN ZEROES!), or no life should exist in our Universe. Inflation simply states that, prior to the Hubble Expansion we now see, our Universe was sufficiently dense for a long enough time that it could reach mass equilibrium, which was then followed by a rapid expansion ("Inflation"), which was then followed by Hubble Expansion. If one does the calculations based on an inflationary model, one finds that Ω can differ from one by almost any amount, but will eventually reach near unity when inflation ceases. From then on, Hubble Expansion can continue with Ω being the number we see. Inflation solves other problems as well; but it also makes predictions about what we would see in our present Universe. Specifically, we would see anisotropies in the Cosmic Microwave Background Radiation of a certain size, but no larger. So far, all observations of the CMBR fail to rule out the Inflation Model. (MORE)

Anand Mehta

247,089 Contributions

Statistician / Economist formerly employed in various Government Departments in the UK, freelance mathematics and statistics tutor since retiring in 2008, Fellow of the Royal Statistical Society.

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In Math and Arithmetic

What is the answer to 20c plus 5 equals 5c plus 65?

20c + 5 = 5c + 65 Divide through by 5: 4c + 1 = c + 13 Subtract c from both sides: 3c + 1 = 13 Subtract 1 from both sides: 3c = 12 Divide both sides by 3: c = 4