Melodee Munuz
Wednesday, August 3, 2011
Why does gun, tanker barells have knob at the front?
I wonder what is the use of knobs at the front of barrels of GUN, Tankers and such other things. Is there any scientific or evolutionary reason behind it?
No comments:
Post a Comment
Newer Post
Older Post
Home
Subscribe to:
Post Comments (Atom)
No comments:
Post a Comment