Subj : Re: coldbrew coffee
To   : Charles Pierson
From : Wilfred van Velzen
Date : Wed Nov 18 2020 14:16:03

Hi Charles,

On 2020-11-18 06:55:06, you wrote to me:

 WV>> And Hydrogen seems to be one of the ways to go for storing and
 WV>> transporting energy in the future. It has a 3 times higher energy
 WV>> density than petrol, its exaust gas is just pure water, no CO2.
 WV>> Unless there is a big breakthrough in battery technology, you
 WV>> can't use it for for instance airplanes. They are just to heavy,
 WV>> and it costs too much time to recharge them. Hydrogen would work
 WV>> for airplanes. And also for road transport, where you have to
 WV>> travel long distances, and recharging for hours isn't an option...

 CP> If it can be done safely, of course it's worth exploring.

There's a lot of investment and research going into it at the moment!

Bye, Wilfred.

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