#trade secrets

Stories tagged “trade secrets” in the Weird Science History archive — 2 stories connected by this topic.

• The Family That Rang Bells and Blindfolded Mothers to Hide a Pair of Tongs
• Starlite: The Fireproof Plastic a Hairdresser Invented and Took to His Grave

Related topics: #17th century #Chamberlen #childbirth #forceps #intumescent materials #materials science #Maurice Ward #obstetrics