Caution! The site can't guarantee, that text has age permission. The site is not recommended, if you are less than 18 years old.
The site shows example sentences for English words. How the word or phrase could be used in a sentence?
" ... But there’s a catch. You have to provide a value, at some point, that answers the question of “how big was the Universe at this particular time?” You can do that exquisitely with data from the Cosmic Microwave Background, which is the narrow grey ellipsoid on the above graph. But doing so would defeat the purpose of having an independent data set, just as using the “distance ladder” ellipsoid (in purple) would defeat having an independent data set. ... "