Why do some gases rise in the air while other gases sink? Why do some gases rise in the air while other gases sink? It all has to do with how heavy the molecules are compared to the air itself! Watch ...

The properties of dense helium (He) — which happens to be a principal constituent of giant gas planets like Jupiter — at thermodynamic conditions between those of condensed matter and high-temperature ...

Gas density is frequently estimated indirectly by gas pressure sensors. Because the pressure in a tightly sealed compartment fluctuates greatly with temperature, such systems require temperature ...

The ultra smooth mirror was required to enable the researchers to perform experiments on electron acceleration in medium density gas jets, with the subsequent goal to ...