From David Taub
I read with interest Roger Waller’s ideas for steam powered cars (4 October, p 37). However, given that he is talking about tanks holding steam at a temperature of 400°C and 120 atmospheres pressure, I am surprised he made no mention of safety issues. At first thought there seems to be quite a bit of potential for serious injury if an accident should rupture the tank even a little bit. An airbag isn’t going to matter much if you are being doused in 400°C steam.
Karlstad, Sweden
