Comments by "" (@DanielSMatthews) on "Aviation faces ‘challenges’ with electrification and using hydrogen for energy" video.

You can't defy the laws of physics that set limits on the energy densities available via different technologies, just as there are limits to how much of a photon's energy can be utilised by a PV array. The best way to store and utilise hydrogen in aviation is by attaching the hydrogen to a carbon chain, i.e. synthetic aviation fuel. The US navy even have a device that makes fuel from seawater using energy from the nuclear reactors on their aircraft carriers and it works well, they have even flown a drone on it. People without a STEM education tend to miss the subtle things, such as that there is more hydrogen in a liter of fuel than there is in a liter of liquid hydrogen. 116 grams vs 71 grams.
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