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The Serperation of Galaxies which was caused by Dark Energy, and the Big Bang.

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What is the sign used to compare quantities and measurements?

The sign used to compare quantities and measurements is the inequality symbol, which includes greater than (>), less than (<), greater than or equal to (≥), and less than or equal to (≤).


How do you calculate dark energy?

Cosmological red-shift tells us that the space within our Universe is expanding. It is NOT that the matter within our Universe exploded; rather, SPACE ITSELF is growing bigger. Until about 1995, nobody knew of any entity, other than gravity, in our Universe that could alter the rate of expansion -- and gravity could only slow down this rate. The question was how much was gravity slowing this expansion. Several researchers worked to resolve this question. When Saul Parlemutter first calculated that the rate of expansion had actually increased over time (we're talking billion of years, mind you), he was sure he had made a dreadful mistake, and diligently searched for his error. After much effort, he finally concluded he had NOT made a mistake, and that the rate of expansion of the space in our Universe really IS increasing. So what IS the entity that is causing the rate of expansion to increase? We have NO IDEA!! That's why it's been given the name "dark energy." We know it's there because we can see its effects, but (for now) we don't know what it is. So how do we "calculate" dark energy? We simply compare the change in the rate of expansion that we SHOULD see (ie, what we would expect if dark energy didn't exist) -- and this rate should be very close to zero -- with the change that we do see. The difference is the amount of dark energy in our Universe.


How do the coefficient in a balance equation compare quantities of two substances?

Type your answer here... The ratio of the substances' coefficients equals the ratio of their number of moles.


A number often expressed as a fraction used to make comparisons between two quantities?

A ratio is a number that represents the relationship between two quantities. It is typically expressed as a fraction or in the form of x:y. Ratios are used to compare the sizes, amounts, or quantities of two different things.


What is a simple explanation for the Big Bang Theory?

Big Bang Cosmology states that our Universe has, over the last 13 billion years or so, been expanding such that the distance between every point in our Universe to every other such point is increasing. There is no center out of which matter came, no explosion, no "bang" -- just an ongoing expansion of distance between all points within our Universe. This theory has overwhelming evidence to support it, and any competing idea is reduced to stating, "I can't explain why we see what we see -- we just do." The theory makes no statement whatsoever on how this expansion started, or what happened "before" the start of this expansion.