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Thread: Condition for Vortex Ring
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Old 20th Nov 2017, 18:54
  #22 (permalink)  
Self loading bear
 
Join Date: Jun 2014
Location: Netherlands
Age: 54
Posts: 3,185
Received 10 Likes on 9 Posts
Slightly off topic but interesting and positive use of vortex ring:



Or the vortex ring blower:

Ring Blower

Cheers SLB
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