Linus Pauling

Linus Pauling, born on February 28, 1901, was a distinguished American chemist and peace activist whose contributions to science and society have left an indelible mark. With a prolific output of over 1,200 papers and books, approximately 850 of which focused on scientific topics, he was recognized by New Scientist as one of the 20 greatest scientists of all time. His groundbreaking work in quantum chemistry and molecular biology laid the foundation for modern scientific understanding.

Pauling's innovative theories on the chemical bond, including the concept of orbital hybridization and the first accurate electronegativity scale, revolutionized the field. He also made significant strides in understanding the structures of biological molecules, particularly highlighting the importance of the alpha helix and beta sheet in protein secondary structure. His research inspired notable figures such as James Watson, Francis Crick, Rosalind Franklin, and Maurice Wilkins in their quest to decipher the structure of DNA.

In recognition of his scientific achievements, Pauling was awarded the Nobel Prize in Chemistry in 1954. His commitment to peace earned him the Nobel Peace Prize in 1962, making him one of only five individuals to receive multiple Nobel Prizes. Uniquely, he is the only person to have been awarded two unshared Nobel Prizes and one of two to have received Nobel Prizes in different fields, alongside Marie Skłodowska-Curie.

In his later years, Pauling became an advocate for nuclear disarmament and explored alternative medicine, particularly promoting orthomolecular medicine and the use of high doses of vitamins, especially ascorbic acid. While his medical theories have not gained widespread acceptance, his legacy as a scientist and activist endures. He was married to Ava Helen Pauling, a prominent human rights activist, further emphasizing his commitment to social causes.