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Invented in 1952 by Virginia Apgar. Disposable diapers. The first disposable diaper was invented in 1946 by Marion Donovan, a professional-turned-housewife who wanted to ensure her children's cloth diapers remained dry while they slept. [12] Donovan patented her design (called 'Boaters') in 1951.
Rebecca "Becky" Schroeder (born 1962) is an American inventor and one of the youngest females to be granted a U.S. patent. [1] [2] [3] When Becky was 10 years old she thought of using a backing sheet of paper with phosphorescent lines that could be placed under writing paper that would allow her to write even with no other light available.
This is a timeline of women in science, spanning from ancient history up to the 21st century. While the timeline primarily focuses on women involved with natural sciences such as astronomy, biology, chemistry and physics, it also includes women from the social sciences (e.g. sociology, psychology) and the formal sciences (e.g. mathematics ...
The Lower Paleolithic period lasted over 3 million years, during which there many human-like species evolved including toward the end of this period, Homo sapiens.The original divergence between humans and chimpanzees occurred 13 (), however interbreeding continued until as recently as 4 Ma, with the first species clearly belonging to the human (and not chimpanzee) lineage being ...
1971: Place cells in the brain are discovered by John O'Keefe. 1974: Russell Alan Hulse and Joseph Hooton Taylor, Jr. discover indirect evidence for gravitational wave radiation in the Hulse–Taylor binary. 1977: Frederick Sanger sequences the first DNA genome of an organism using Sanger sequencing.
[160] [161] Reasons for under-representation of same-sex attracted women and anyone gender nonconforming in STEM fields include lack of role models in K–12, [160] [161] [162] the desire of some transgender girls and women to adopt traditional heteronormative gender roles as gender is a cultural performance and socially-determined subjective ...