Windsocks are conical textile tubes that are often installed at airports and at chemical plants where there is risk of gaseous leakage. They are sometimes…
On February 28, 1956, Jay Forrester was awarded a patent for his coincident current magnetic core memory. Forrester’s invention became the standard memory device for…
Within a two-week period in August 1897, Felix Hoffmann synthesized two drugs: aspirin, one of the most widely beneficial drugs ever, and heroin, one of…
On February 25, 1902 John Holland (an Irish engineer) was granted a patent for a submarine. Holland developed the first submarine to be formally commissioned…
On February 23, 1897, Nikola Tesla received a patent for electrical condensers and coils. The features of the patent: 1. Improvements of condensers, transformers, self-induction…
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