It is tempting to think that some materials are always heavier than other materials. For example, someone might say that metal is heavier than air. But it depends on how much of each material there is ...

Bulk Density(ρ B): Bulk density of a powder is the weight of loose powder sample in unit volume. ρ B =M/V In this video, Bettersize application engineer Shelly Zhang is measuring the bulk density of ...

Physicists like to share the legend of a professor who asked students how they might determine the height of a building using a barometer. The story goes on to list some of the ways you might do that.

Scientists have developed a way to measure the density of a single cell. The new method involves measuring the buoyant mass of each cell in two fluids of different densities. Measuring cell density ...