In addition to patenting the first practical telephone, Alexander Graham Bell developed a hydrofoil motorboat that broke the world marine speed record. en.wikipedia.org/wiki/HD-β¦
The fastest circumnavigation of the globe was in a sailboat, The trimiran Banque Populaire. it took 45 days 13 hours 42 minutes 53 seconds, 15 days faster than the fastest motorboat. en.wikipedia.org/wiki/Banβ¦
The Stethoscope was invented because French physician Rene Theophile Hyacinthe Laennec felt uncomfortable placing his face on a woman's breasts to listen to her heartbeat mentalfloss.com/article/3β¦
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