Subj : Re: coldbrew coffee
To   : Wilfred van Velzen
From : Charles Pierson
Date : Wed Nov 18 2020 06:55:06

Hello, Wilfred van Velzen.
On 11/18/20 11:45 AM you wrote:

 WV>>> Not that I'm aware of...
 CP>> I'd certainly hope not. Hydrogen gas isn't really a good idea, 
 CP>> looking back historically.
 WV> They have come a long way in safely storing Hydrogen gas, since 
 WV> the days of the big blimps!

I would certainly hope so.
 
 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...

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


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