View a list of Spheres of Influence


The following achievements are associated with this Sphere of Influence:

Inventing the range-finder and other optical instruments
The inventions of Archibald Barr and their subsequent commercial exploitation have had a lasting impact on the world economy.

Multistage Flash Distillation System for desalination
Robert Silver invented the Multistage Flash (MSF) Distillation System to desalinate seawater, which made an outstanding contribution to humanitarian and economic progress.