Feather Twists Steel Westinghouse
From the same factory that brought us the famous “We can do it” Rosie the riveter, this poster shows WWII poster printed in 1949 and reads “Using their new "twist detector", Westinghouse scientists can detect and measure the incredibly small amount of twist-less than one-millionth of an inch-which the weight of a feather causes in a steel bar. The detector was developed to aid in the design of more accurate instruments to measure the power delivered by airplane propellers, jet engines, and other rotating machines.”
Measures 14x17”
Condition- very good, slight warping the way it was rolled up, 2 minor 1/4” tears.
From the same factory that brought us the famous “We can do it” Rosie the riveter, this poster shows WWII poster printed in 1949 and reads “Using their new "twist detector", Westinghouse scientists can detect and measure the incredibly small amount of twist-less than one-millionth of an inch-which the weight of a feather causes in a steel bar. The detector was developed to aid in the design of more accurate instruments to measure the power delivered by airplane propellers, jet engines, and other rotating machines.”
Measures 14x17”
Condition- very good, slight warping the way it was rolled up, 2 minor 1/4” tears.
From the same factory that brought us the famous “We can do it” Rosie the riveter, this poster shows WWII poster printed in 1949 and reads “Using their new "twist detector", Westinghouse scientists can detect and measure the incredibly small amount of twist-less than one-millionth of an inch-which the weight of a feather causes in a steel bar. The detector was developed to aid in the design of more accurate instruments to measure the power delivered by airplane propellers, jet engines, and other rotating machines.”
Measures 14x17”
Condition- very good, slight warping the way it was rolled up, 2 minor 1/4” tears.
