2/2 Its significance went far beyond comfort. It made indoor air conditions predictable and repeatable, helping businesses stabilize production quality, reduce waste, and operate more reliably year-round instead of being at the mercy of seasonal humidity.

6/6 The Discopter is a useful reminder for every UFO narrative: sometimes the “unknown craft” is not unknown at all. Sometimes it is a patent, a sketch, and an idea ahead of its time.

5/6 If you were a witness in 1947 seeing something hover, pivot, and climb hard, would you bet on visitors, or on an inventor who already drew the shape and filed it with the Patent Office?

4/6 Now add 1940s context: wartime secrecy, rapid aeronautics leaps, and a public primed to interpret odd lights through rumor. Then, just two years later, “flying saucer” enters the popular vocabulary.

3/6 A saucer silhouette, explained in engineering terms.

2/6 Weygers’ concept is not mystical at all, which is exactly why it feels like UFO fuel: a flying disc built around shrouded rotors inside a vertical duct, aimed at vertical takeoff and landing, a compact footprint, and safer operations near people and buildings.

Fisk really did patent these. Here are the drawings from Almond D. Fisk’s U.S. #Patent No. 5,920 for “Improvement in Coffins” granted on November 14, 1848.

3/3 The concept also echoes earlier property-trading designs like The Landlord’s Game, but Monopoly’s mix of negotiation, rent pressure, and calculated risk made it the one that stuck.

2/3 Legend has it that, after losing work during the Great Depression, Darrow started hand-making sets at home, sketching an Atlantic City-style board and selling copies to friends and local stores.

Great share. Here’s an original figure from John H. Tuttle’s US Patent 2,306,575 showing Checker’s open rear passenger section.
#AutomotiveHistory #CheckerTaxi #PatentHistory

Even if people have chewed resins since prehistory, 19th-century U.S. patentability (first-to-invent era) often turned on what was known/used “in this country” and what was in patents/printed publications. Therefore, ancient or overseas practice could be hard to surface as prior art.

Here are the original patnt specification of the Semples’s 1869 patent.

3/3 By the way, a proper Christmas tree is a real, natural one. Artificial trees simply do not belong.
#Christmas #ChristmasTree

2/3 Ever wondered where the tradition of the decorated Christmas tree began? The first written record points to Riga, Latvia in 1510. It was a Christmas celebration by local merchants that helped spark a tradition shared around the world.
#Christmas #ChristmasTree #ChristmasHistory #Riga