Put simply: if you take a “T” shaped pipe and pass a fluid (such as air or water) through the straight section, a vacuum will be created on the shorter side due to the Venturi effect.

Pete Croft and Lisa Rands climb The Venturi Effect up the The Incredible Hulk, established by Croft and Dave Nettle in 2004. After a step back in time examining a route established by Kurt Smith at ...

The Stipa-Caproni is sometimes claimed to be an early flying proto-jet and was one of the most unorthodox aircraft designs of the 1930s.