Look for the orange smear. (A drone would help here.)
A friend's father used to build and test rockets using this principle, though he'd smear the outside of the rocket casing. During the Cold War. Up north.
That earned the family a visit from an air force colonel one day, apparently after pilots had put together the sighting of high contrails, orange snow smears, and the lone figure seen trudging toward the smear.
Smear bearings with orange grease.
Look for the orange smear. (A drone would help here.)
A friend's father used to build and test rockets using this principle, though he'd smear the outside of the rocket casing. During the Cold War. Up north.
That earned the family a visit from an air force colonel one day, apparently after pilots had put together the sighting of high contrails, orange snow smears, and the lone figure seen trudging toward the smear.