Andrew Miller·20h agoUSA 250 Series: Modern Air ConditioningIn July 1902 Willis H. Carrier completed drawings for a system that cooled and dehumidified air at the Sackett & Wilhelms printing plant in…
InDid You Know…Short Fun FactsbyD M Basha·23h agoDID YOU KNOW… 4 Lazy-Crazy WhatsApp Tricks You Should TryI Tried It Myself; It Worked
Andrew Miller·1d agoUSA 250 Series: Disposable Safety RazorKing Camp Gillette filed a patent application in December 1901 for a safety razor that held a thin, double-edged blade of stamped sheet…
InMindful Insights ExpressionbyChendra Naln·3d agoInventing the Future: A Practical Guide to Creation and ImprovementThink Outside the Box — And Inside Human NeedsA response icon1A response icon1
Andrew Miller·4d agoUSA 250 Series: Electric Elevator SystemsIn the early 1890s engineers installed electric motors to raise and lower elevator cars instead of relying on steam engines or hydraulic…
Andrew Miller·4d agoUSA 250 Series: Automatic Fire Sprinkler ImprovementsOn 11 August 1874 Henry S. Parmelee received U.S. Patent 154,076 for an automatic fire sprinkler that opened when heat melted a soldered…
InQuestionalitybyLen Bassham·4d agoWhatever Happened to Mr. Boysen?and to the berry he inventedA response icon2A response icon2
Andrew Miller·5d agoUSA 250 Series: Industrial Sewing Factory SystemsBy the early 1900s garment factories arranged specialized sewing machines in lines so that each operator performed one repeated operation…
InDid You Know…Short Fun FactsbyBeni Bee Moin·6d agoDid You Know… The tongue has a unique print, just like FingerprintsResearchers are investigating tongue prints as a possible forensic and biometric identification methodA response icon1A response icon1
