In some cases, astronomers have managed to track orbital motion of the stars, which could yield more - accurate mass measurements of the stars themselves, he added. (space.com)
For example, a client's lean body mass measurement is not only used to guide training programming but for nutritional planning as well. (wao.fnj.mybluehost.me)
Now, a team of physicists has overcome this challenge to produce the most precise electron mass measurement ever made. (sciencemag.org)