On Thursday, 30 April 2015 15:10:41 UTC+1, Tim Streater wrote:
In article , The Natural Philosopher
wrote:

On 30/04/15 12:08, Simon Brown wrote:
Viable flying machines are a serious breakthrough.

No they are not,. They *were* perhaps a serious breakthrough, but really
all the breakthrough was in fact the petrol internal combustion engine.
Once that existed aircraft were inevitable.

Yes, because of the power to weight ratio - something that fluffy bunny
halfwits cannot comprehend. From time to time, also, one hears of
people imagining we might put steam engines in cars.

Doble E series, the ultimate steam car

It doesn't occur
to them to wonder why steam engines are so large.

Mr. Doble solved that

Steam airplanes have been done btw.


NT