There is no substitute for helium when it comes to pushing rocket fuel from the tanks into the engines. It is estimated that helium worth USD 1 million is consumed per launch.
According to research led by Shan Xi Tian and Jie Hu from the University of Science and Technology of China, a reaction between helium ions (He+) and carbon dioxide (CO2) can result in the formation ...
THE abnormally high heat conductivity of helium II below the λ-point, as first observed by Keesom, suggested to me the possibility of an explanation in terms of convection currents. This ...