Inventors and Scientific Discoveries

John Ambrose Fleming invented the thermionic valve (also known as the vacuum tube or diode) in 1904. This invention was crucial for early radio technology and electronics, allowing for rectification of AC signals. It revolutionized communication technology.

C.V. Raman discovered the Raman Effect related to light scattering in crystals and molecules, which is fundamental to understanding crystal dynamics. This groundbreaking work in light scattering earned him the Nobel Prize in Physics in 1930.

Grote Reber built the first parabolic radio telescope in 1937, expanding astronomy beyond visible light. Roentgen discovered X-rays, Curie pioneered radioactivity research, and Galileo developed optical telescopes.

Alessandro Volta created the first true battery (Voltaic Pile) in 1800, producing steady electrical current. Edison developed light bulbs, Faraday discovered electromagnetic induction, and 'None' is incorrect.

Franklin invented bifocals, lightning rod, and odometer, but electrical induction was discovered by Michael Faraday through electromagnetic experiments. The question asks which is NOT Franklin's invention.

Thomas Edison invented the phonograph in 1877, the first device capable of recording and reproducing sound. Marconi developed radio, Grote Reber built radio telescopes, and Galileo was an astronomer.

Michael Faraday discovered diamagnetism in 1845 when he noticed that many materials exhibit a weak repulsion from a magnetic field. Fleming is known for his left/right-hand rules, and Edison for the lightbulb.

Gordon Teal at Texas Instruments built the first working silicon transistor in 1954. He was motivated by silicon's superior temperature stability compared to germanium. Haggerty, Kraus, and Kilby were TI colleagues but Kilby invented the integrated circuit, not the silicon transistor.

Douglas Engelbart invented the computer mouse in 1964 at Stanford Research Institute. He held numerous patents related to human-computer interaction and is most famously remembered for the mouse, despite his broader contributions to computing technology.

Douglas Engelbart invented the computer mouse at Stanford Research Institute in the 1960s. He held numerous patents and pioneered human-computer interaction concepts. The other individuals listed - Patrick E. Haggerty, David Filo, and John R. Woodyard - were not associated with inventing the mouse, though they contributed to technology in other ways.

Willis Carrier invented modern air conditioning in 1902. His invention was initially designed to control humidity in a printing plant. James Naismith invented basketball, Elisha Otis pioneered the safety elevator, and Walter Hunt invented the safety pin.

Sir David Brewster invented the kaleidoscope in 1816. Garnet Carter created miniature golf, Charles Darrow developed Monopoly, and Percy Spencer invented the microwave oven. The kaleidoscope uses mirrors to create symmetrical patterns from colored objects.

Alexander Graham Bell invented the metal detector in 1881 to try to locate a bullet in President Garfield's body. Samuel Morse invented the telegraph, Douglas Engelbart developed the computer mouse, and Enrico Fermi was a nuclear physicist. The device used electromagnetic induction.

Samuel Morse developed the telegraph and Morse code in the 1830s-1840s, revolutionizing long-distance communication. Elizabeth Hazen and Rachel Brown developed the first antifungal antibiotic, and Paul Nipkow invented the Nipkow disk for early television.

Percy Spencer accidentally discovered microwave heating technology in 1945 when a candy bar in his pocket melted near a magnetron. James Naismith invented basketball, Ellen Ochoa was an astronaut, and Wilhelm Reich was a psychoanalyst. The first microwave oven was sold in 1947.