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Bicycle Bob · 07-03-2009, 02:49 AM

It might be the effect of interference between the two shapes. Without free air around you, it is like an increase in frontal area. Can you use a sealed container of water on your dashboard to observe the effect?

07-03-2009, 02:49 AM	#2 (permalink)
Bicycle Bob EcoModding Apprentice Join Date: May 2008 Location: N. Saskatchewan, CA Posts: 1,805 Appliance White - '93 Geo Metro 4-Dr. Auto Last 3: 42.35 mpg (US) Stealth RV - '91 Chevy Sprint Base Thanks: 91 Thanked 460 Times in 328 Posts	It might be the effect of interference between the two shapes. Without free air around you, it is like an increase in frontal area. Can you use a sealed container of water on your dashboard to observe the effect?