Surprisingly, the file’s pointed edge works well for opening shipment boxes, cutting through tape without causing any damage to the contents.
A basic nail clipper becomes a small multitool thanks to that little circular hole and its surrounding components, demonstrating how even the most commonplace items can conceal clever design secrets.
The Mystery Behind the Blue-and-Yellow Can: The Story of WD-40
To silence a squeaky hinge or loosen a rusted bolt, most of us keep a blue-and-yellow can of WD-40 hidden in the garage or beneath the kitchen sink.
It’s one of those commonplace items that we hardly ever think about the true meaning of the letters and numbers.
The name was merely a brand for many years, but its actual history is far more fascinating than a straightforward marketing decision. As it turns out, WD-40 was not at all intended for homeowners; rather, it was a high-stakes solution derived from the harsh realities of scientific trial and error and Cold War engineering.
A tiny group at the Rocket Chemical Company in San Diego was given a crucial duty for the aerospace sector in 1953.
In order to prevent corrosion on the Atlas Missile, they had to create a range of rust-prevention solvents and degreasers for use in the aerospace industry. Moisture posed the biggest threat to national defense because the outer layer of these missiles was extremely thin and prone to rusting while they were in their silos.
The team’s attempt to develop a compound that might successfully produce a barrier against water was spearheaded by chemist Norm Larsen, but it turned out to be far more difficult than they had anticipated.
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