Sol Tee Nutz Well-Known Member Apr 29, 2012 7,675 1,523 113 Look behind you. May 27, 2018 #21 park321 said: If you have any other questions let me know! Click to expand... If a humming bird is flying into a 30 KPH wind how many times will it flap its wings to travel 1 Km?
park321 said: If you have any other questions let me know! Click to expand... If a humming bird is flying into a 30 KPH wind how many times will it flap its wings to travel 1 Km?
J jalimon I am addicted member Dec 28, 2015 6,251 166 63 May 30, 2018 #22 Sol Tee Nutz said: If a humming bird is flying into a 30 KPH wind how many times will it flap its wings to travel 1 Km? Click to expand... headwind or backwind?
Sol Tee Nutz said: If a humming bird is flying into a 30 KPH wind how many times will it flap its wings to travel 1 Km? Click to expand... headwind or backwind?