The vacuum flask used by Dewar to preserve ... those concerned with the behaviour of gas-adsorbents (activated charcoals, colloidal silica, etc.) at liquid-air temperature. Though the general ...

However, the weakness of natural gas prices has caused natural gas to trade below that ratio, which has made the transition to liquids a priority. As I am writing this article, there has been an ...

It defined energy as "crude oil, natural gas, lease condensates, natural gas liquids, refined petroleum products, uranium, coal, biofuels, geothermal heat, the kinetic movement of flowing water ...