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?
" ... As for what type telescopes might be able to spot such spectra? ... "
" ... But empty space holds perhaps the top spot when it comes to a phenomenon that defies our intuition. Even if you remove all the particles and radiation from a region of space — i.e., all the sources of quantum fields — space still won't be empty. It will consist of virtual pairs of particles and antiparticles, whose existence and energy spectra can be calculated. Sending the right physical signal through that empty space should have consequences that are observable. ... "
" ... Recently a team of astronomers did just that, and they found an interesting interstellar connection.[^1] Part of the data ALMA has on Titan is the spectra of its atmosphere. Titan has a thick atmosphere rich with organic molecules. One of the molecules is acetonitrile (CH3CN). When the team looked at the spectra of these molecules, they found two varieties. The more common variety of acetonitrile has the 14N isotope of nitrogen, while a more rare version as the 15N isotope. ... "
" ... The absorption spectra of different populations of gas (L) allow us to derive the relative ... [+] abundances of elements and isotopes (center). In 2011, two distant gas clouds containing no heavy elements and a pristine deuterium-to-hydrogen ratio (R) were discovered for the first time. ... "
" ... There is still significant research to be done with infrared spectra. This new work shows, however, that infrared line spectra could prove to be just as important as the line spectra of visible light. ... "