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.
neutron star. The intense gravity of the neutron star sucks gaseous material off of the companion star and heats it to millions of degrees, thereby creating x-rays. [For additional information about x-ray binaries, please visit this site Other sources of x-ray emission in the SMC include supernova remnants.