[ad_1] In 1816, Rene Theophile-Hyacinthe Laennec created the first stethoscope after being inspired by children playing with hollow sticks. He designed a listening device made of rolled paper, which evolved into the modern stethoscope used by physicians today. Laennec’s invention revolutionized medical diagnostics and is now a symbol of the medical profession. The first stethoscope […]
[ad_1] Louis Braille invented the braille system at 12 years old, using six raised dots to communicate letters, numbers, and symbols. Blinded at three, he learned to write at night and developed the six-point system based on Charles Barbier’s technique. Braille is also used for musical notation. Braille was invented by Louis Braille in 1821 […]
