One reason JUUL and vape pens are so popular among teens currently might be that they can be used indoors without attracting unwanted attention or creating a stench, Morean says. On Twitter, teens post about their usage in school.
What is a star's emission spectrum? It is the same as the HR diagram and gives the same information. It is the fingerprint of all of the colors of light emitted by a star. It is a graph of all the pollution given off by a star. It is a graph of the starâs solar flares.
the many spectral lines seen in their spectrum. A close inspection of a starâs spectrum will reveal many absorption lines, and for some stars, emission lines as well. These spectral lines can be used to determine an incredible amount of information about the star, including