You may have seen those planes that haul advertising banners across the sky, often at the beach or other densely-populated tourist areas. The process that attaches the banner to the plane is interesting. The small planes they typically use lack the horsepower to take off while dragging a banner, and unfurling a banner in flight runs the very real risk of getting it tangled up in the plane itself. So, the banner is attached, unfurled, to an upright on the ground. The plane then sweeps in very low while dragging a hook that snatches the banner.
When my sister was a young pilot, fresh out of college, she was offered an opportunity to do this as a summer job. I’m glad she didn’t take it.
It was a different time when kids could buy the Gilbert Molten Lead Casting Kit, which let them create their own metallic toys by casting them from molten lead. Cracked.com has listed 8 dangerous vintage toys, including my favorite, the Atomic Energy Lab (ca. 1960), which contained actual samples of uranium (which is radioactive) and radium (even more so).
The Isolator was a personal work environment for those who wanted (or needed) to hyper focus. It effectively rendered the wearer deaf, pumped in oxygen and limited his/her field of vision to one line of written text.