I read your leader
‘A celebration of innovation’(Comment, 16 January) with some interest, but I was amused that you referred to Spitfire and Hurricane designers as ‘aerospace engineers’.
At that time, I think the Nazis had the only engineers that could be so described, as we were to discover on 8 September, 1944, when the first operational V2 descended on Chiswick.
A great magazine — fascinating as always.
Tim Perry
Invinity to build 20MWh flow battery in UK
Redux flow cells have had nowhere near the R+D effort compared to Lithium ion. They certainly have the potential (pun not intended) for longer...