Archives for October, 2018
Hydrogen is the most abundant element in the universe, it is found on the sun and most stars and planets. Jupiter, for example, is mostly comprised of hydrogen. Hydrogen has a density of 0.000082 g/cm3 (water is 1g/cm3 at 40C) and thus readily escapes Earth’s gravity. On earth it is largely…
There are currently about 730 construction cranes in Australia, 321 of which are in Sydney. In the US, Seattle has the most cranes with 65 active. Clearly, Australia is being overbuilt, Sydney in particular. This has been a cause of concern to many commentators over the past few years as…
Storing large amounts of electricity for very long times is fundamental to increased uptake of intermittent renewable energy such as wind and solar, without resorting to backup such as natural gas. Energy storage has been widely used by power utilities for many years to help regulate the electricity supply. Its use…