CO2 converted into carbon nanofibres
Scientists in the US have converted CO2 gas into valuable carbon nanofibres in a two-step process, involving an electrochemical and a thermochemical reaction at relatively low temperatures and ambient pressures. Converting CO2 into carbon nanofibres could allow it to be sequestered in long-term materials. However, CO2 is a stable molecule, so carbon monoxide is a far better starting material for making carbon nanofibres.
UK engineers test rocket that “eats” itself
Engineers in the UK say they have built and tested the first unsupported “self-eating” rocket engine, which consumes part of its fuselage for fuel. As the propane and oxygen fuel tank empties, the high-density polyethylene fuselage melts and is fed into the combustion chamber as additional fuel, causing the rocket’s weight to steadily diminish.