2/1/1844 Strasburger Eduard biologist In 1891 he demonstrated that materials move up through plants by capillary action. He died in 1912 at the age of 68.
2/1/1844 Hall Granville psychologist He pioneered the study of child psychology. He died in 1924 at age 78.
2/1/1905 Segre Emilio physics the synthesized element 43 technetium and element 85 astatine. In 1955 he reported the formation of antiprotons.