Origin of Marker Balls
The backstory underlying these colorful markers is as intriguing as their usefulness. An occurrence occurred over 50 years ago, in the early 1970s, which prompted their construction. Winthrop Rockefeller, the then-governor of Arkansas, was on an airplane with Edward Holland, the chief of the Arkansas Department of Aeronautics. As the jet dropped, Rockefeller observed electrical lines in perilous proximity to the aircraft.
Concerned for the safety of both pilots and passengers, Rockefeller pressed Holland to find a way to make power wires more visible to aviators. Holland, in turn, approached engineer Jack Rutledge to take on this job. Rutledge’s clever idea involves creating bright, highly visible marking balls that could be affixed to electrical lines without being easily dispersed by wind.
The Delightful German Apple Oatmeal Recipe: A Taste of Germany’s Finest
9 surprising alternative uses of Nivea cream that can be very useful
How to make Homemade Amish Sweet Bread
Here’s Why You Should Massage Your Feet Every Night Before Bed
Sadly Maria is no longer with us, which makes this whole clip even more moving
Die Schwiegermutter kommt: Diese Reinigungswürfel retten mich, wenn ich die Toilette schnell auffrischen muss
“An Unbearable Disappointment”
Doctors Issue a Serious Warning for Anyone Who Keeps Ketchup in the …
Edema: a swelling that can have many causes
