Fathers of Science — Set 1

Correct Answer: A. Antoine Lavoisier

• **Antoine Lavoisier** = Established the Law of Conservation of Mass, foundational to modern chemistry. • **Chemical nomenclature system** — He developed the first systematic naming convention for chemical compounds. • 💡 Wrong-option analysis: Robert Boyle: known for Boyle's Law relating pressure and volume of gases; John Dalton: developed atomic theory and the law of multiple proportions; Dmitri Mendeleev: created the periodic table of elements.

Correct Answer: D. Galileo Galilei

• **Galileo Galilei** = Pioneer of telescope-based astronomical observations and the scientific method. • **Modern kinematics** — His work on motion and forces laid the groundwork for Newton's laws. • 💡 Wrong-option analysis: Niels Bohr: developed the Bohr model of the atom; Albert Einstein: famous for theories of relativity, not physics foundations; Isaac Newton: came after Galileo and built upon his work on motion and gravity.

Correct Answer: D. Aristotle

• **Aristotle** = First to systematically study and classify living organisms scientifically. • **Animal anatomy and reproduction** — His detailed observations remained the standard reference for biological study for over a millennium. • 💡 Wrong-option analysis: Charles Darwin: developed theory of evolution by natural selection; Carl Linnaeus: created binomial nomenclature system for classification; Gregor Mendel: discovered the laws of heredity and genetics.

Correct Answer: D. Nicolaus Copernicus

• **Nicolaus Copernicus** = Proposed the heliocentric model as an alternative to geocentric astronomy. • **Copernican Revolution** — His work fundamentally shifted scientific perspective on the universe's structure and Earth's place in it. • 💡 Wrong-option analysis: Johannes Kepler: refined the heliocentric model with elliptical orbits; Edwin Hubble: discovered expanding universe and galaxies beyond the Milky Way; Tycho Brahe: made precise astronomical observations but maintained geocentric model.

Correct Answer: A. Ernest Rutherford

• **Ernest Rutherford** = Discovered the atomic nucleus and identified the proton through experimentation. • **Planetary model of the atom** — His gold foil experiment revolutionized understanding of atomic structure. • 💡 Wrong-option analysis: J.J. Thomson: discovered the electron; Marie Curie: discovered radioactivity and elements polonium and radium; Enrico Fermi: created first nuclear reactor and contributed to nuclear physics.

Correct Answer: B. Edward Jenner

• **Edward Jenner** = Developed the first successful vaccine against smallpox in 1796. • **Cowpox virus vaccination** — His method of using cowpox to confer immunity against smallpox founded modern immunology. • 💡 Wrong-option analysis: Jonas Salk: developed the polio vaccine in the 20th century; Louis Pasteur: developed vaccines for rabies and anthrax; Alexander Fleming: discovered penicillin, an antibiotic.

Correct Answer: B. Alan Turing

• **Alan Turing** = Formalized the concepts of algorithm and computation through the Turing machine. • **Theoretical computer science** — His work provided the mathematical foundation for all modern computing. • 💡 Wrong-option analysis: Ada Lovelace: wrote the first algorithm for a computing machine; Charles Babbage: designed the Analytical Engine; John von Neumann: developed computer architecture and game theory.

Correct Answer: D. Sushruta

• **Sushruta** = Ancient Indian physician who authored the 'Sushruta Samhita', a foundational surgical text. • **Rhinoplasty and cataract surgery** — He described advanced surgical procedures centuries before modern medicine. • 💡 Wrong-option analysis: Madhava: made contributions to mathematics; Dhanvantari: a legendary physician and deity in Ayurveda; Charaka: authored the Charaka Samhita on medicine and diagnosis.

Correct Answer: D. Norman Borlaug

• **Norman Borlaug** = Developed high-yielding, disease-resistant wheat varieties through agricultural research. • **1970 Nobel Peace Prize** — His work prevented mass starvation and transformed global food security. • 💡 Wrong-option analysis: Verghese Kurien: founder of the White Revolution in India for dairy production; Homi Bhabha: established India's nuclear program; M.S. Swaminathan: contributed to the Green Revolution in India.

Correct Answer: D. Hippocrates

• **Hippocrates** = Separated medicine from superstition, establishing rational, observation-based medical practice. • **Hippocratic Oath** — This ethical framework for physicians, established by him, remains the foundation of medical practice today. • 💡 Wrong-option analysis: Andreas Vesalius: pioneered human anatomy through dissection; William Harvey: discovered blood circulation; Galen: expanded on Hippocratic medicine but made errors.