A: Astronomers can calculate mass in several ways. The simplest is when the object is part of a binary system. Regardless of the objects in the binary — two stars, a star and a neutron star, a star ...

Lean Body Mass (LBM) is simply an estimation of how much you weigh without the body fat – how much your bones, organs and muscles weigh. As the other factors are assumed to be relatively static, by ...

How do we know the mass of a planet originally appeared on Quora - the knowledge sharing network where compelling questions are answered by people with unique insights. Answer by Geoffrey Widdison on ...

The terms weight and mass are often used incorrectly. Phrases like ‘a bag of sugar weighs 1 kg’ are not scientifically correct. This means that a 1 kg mass would be attracted to Earth by a force of 10 ...

The body-mass index is a common measure of obesity. It’s the ratio of weight in kilograms to height in meters squared. Here’s how to calculate yours: (Your weight in kilograms) = (0.4535) x (your ...