Comment by csours
11 hours ago
One may look at aluminum as a solid form of energy. In fact, https://en.wikipedia.org/wiki/Aluminium%E2%80%93air_battery
11 hours ago
One may look at aluminum as a solid form of energy. In fact, https://en.wikipedia.org/wiki/Aluminium%E2%80%93air_battery
One gram of finished 3nm packaged semiconductor is roughly equivalent to half a kilogram of refined aluminum in terms of energy cost. If you want to spend a lot of energy for not much mass, photolithography is fantastic.