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 ...

The density of an object or substance is its mass divided by its volume: Density = Mass ÷ Volume. The units of density depend on the units used for mass and volume, but are usually: g/cm³ (if mass is ...

A collaborative research team from the Institute of Solid State Physics, the Hefei Institutes of Physical Science of the ...

Power density is a term that more or less defines itself. For a more formal definition consider this: Power density is a measure of the amount of output power of a circuit or device divided by the ...

Whenever I try to figure out why some PC133 ram works on my motherboard and some doesn't, someone invariably mentions "density". What is this mythical "density" value of a particular memory chip? How ...