Inventors and Scientific Discoveries

Joseph Lister pioneered antiseptic surgery in 1865 by introducing carbolic acid to sterilize instruments and clean wounds, dramatically reducing infection rates. Edward Jenner developed the smallpox vaccine, while Henry William and John Sleeman were not pioneers in antiseptic techniques.

John Logie Baird is credited as the inventor of television, demonstrating the first working TV system in 1926. Faraday contributed to electromagnetism, Edison to the light bulb and phonograph, and Marconi to radio telegraphy.

Alexander Fleming discovered penicillin in 1928, not J. Perkins. The other combinations are correct: James Watt developed the steam engine, Alexander Graham Bell invented the telephone, and John Logie Baird pioneered television.

Michael Faraday is known for electromagnetic induction and electrolysis, not the diffusion of gases. Thomas Graham studied diffusion of gases. The other pairs are correct: Roentgen discovered X-rays, Newton formulated the law of gravitation, and Pasteur founded bacteriology.

T.H. Huxley, the prominent 19th-century biologist, famously described protoplasm as the 'physical basis of life' in 1868, emphasizing its fundamental role in cellular structure and function. This concept helped establish the cell theory in biology.

Lazlo Biro, a Hungarian journalist, patented the ballpoint pen in 1938, revolutionizing writing instruments. The pen was named 'Biro' in his honor in many countries. Waterman is associated with fountain pens, while Oscar and Wilson are not associated with pen inventions.

Alexander Fleming discovered penicillin in 1928 from the Penicillium mold, revolutionizing medicine with the first antibiotic. X-rays were discovered by Wilhelm Röntgen, streptomycin by Selman Waksman, and the telephone by Alexander Graham Bell.

Elisha Graves Otis demonstrated his elevator safety invention in 1854 by riding an open-sided elevator and having the cable cut mid-ascent. The safety brake engaged and held the platform, proving elevators could be made safe. This demonstration launched the modern elevator industry and the Otis Elevator Company became dominant.

John Logie Baird was a Scottish engineer who is credited with inventing the first working live television system. Marconi is known for radio, and Bell for the telephone.

Humphry Davy invented the first electric light bulb in 1802 (the electric arc lamp). Thomas Edison developed the first commercially practical incandescent bulb in 1879, but Davy's invention came first. 'Edward watt' and 'Edwin moore' are incorrect distractors.

Charles Babbage is widely credited as the 'father of the computer' for designing the Analytical Engine in the 1830s, which contained the basic elements of a modern general-purpose computer. While his designs were mechanical rather than electronic, they established the fundamental architecture still used today. The modern computer pioneers listed in other options came much later.

Martin Cooper, a Motorola engineer, led the team that developed the first handheld mobile phone. He made the first public call from a handheld mobile phone on April 3, 1973, using a prototype of the Motorola DynaTAC 8000X.