Andrew was thinking very hard :
On 05/08/2019 11:29, Harry Bloomfield wrote:
Marland pretended :
but more is removed than is being pumped in by quite a percentage using
the
Venturi effect .

The venturi effect as invented by Dyson.

Are you sure he didn't get the idea from Frank Whittles
original jet engine design ?.

Sorry, I ommited a smiley on the end of my post.