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The hot comb was an invention developed in France as a way for women with coarse curly hair to achieve a fine straight look traditionally modeled by historical Egyptian women. [44] However, it was Annie Malone who first patented this tool, while her protégé and former worker, Madam C. J. Walker, widened the teeth. [45]
February 8 – After 84 days in space, the last crew of the temporary American space station Skylab return to Earth.; February 13–15 – Sagittarius A*, thought to be the location of a supermassive black hole, is identified by Bruce Balick and Robert Brown using the baseline interferometer of the United States National Radio Astronomy Observatory.
February 3 – Dr. John Buster and the research team at Harbor-UCLA Medical Center announce history's first embryo transfer from one woman to another resulting in a live birth.
2015: The International Day of Women and Girls in Science is an annual observance adopted by the United Nations General Assembly to promote the full and equal access and participation of women in Science, Technology, Engineering and Mathematics (STEM) fields; [382] the United Nations General Assembly passed resolution 70/212 on 22 December 2015 ...
6th century: Varahamira in the Gupta empire is the first to describe comets as astronomical phenomena, and as periodic in nature. [90] 525: John Philoponus in Byzantine Egypt describes the notion of inertia, and states that the motion of a falling object does not depend on its weight. [91]
Patty Hearst, during the April 1974 Hibernia bank robbery. [ s 2 ] 9th AUGUST 1974 Washington D. C. USA. President Richard Nixon of the United States gives the V-sign with both hands before boarding the Presidential helicopter to leave the White House for the last time after his resignation speech following the Watergate
This is a historical list dealing with women scientists in the 20th century. During this time period, women working in scientific fields were rare. Women at this time faced barriers in higher education and often denied access to scientific institutions; in the Western world, the first-wave feminist movement began to break down many of these ...
Pages in category "1984 in science" The following 23 pages are in this category, out of 23 total. This list may not reflect recent changes. ...