bladeless wind turbines

now i need an explanation about how those dyson bladeless fans work and why they are so expensive.
- dave 5-23-2015 11:13 am [add a comment]

• gotta pay extra for cool
  - Skinny 9-05-2015 9:24 am [add a comment]

Laminar flow?
- mark 9-05-2015 6:20 am [add a comment]

Braun
- bill 9-05-2015 8:23 am [add a comment]