Give a strip of paper a half-twist and tape the ends together— you get a Möbius loop, a one-sided shape with one edge. Make two Möbius loops and glue their edges together—you should get a Klein bottle. #MathAtSFO #Mathematics #Kleinbottle
This tweet was posted on October 25, 2021.
In 1912, at age 21, Stinson was the 4th woman in the U.S. to obtain a pilot’s certification. Called “the Flying School Girl,” she quickly became a star aerobatic performer. She was the first woman to perform an aerial loop and the first to fly U.S. airmail. #EarlyWomenAviators
This tweet was posted on July 20, 2022.
Prior to modern day tape-like loop luggage tags, airlines issued paper tags with an eye towards a… http://t.co/SzoGe8m6mb
This tweet was posted on April 22, 2014.
Ruth Asawa (1926–2013) was a revered Bay Area artist who worked in sculpture and created a handful of functional objects. After a trip to Mexico, she was inspired by looped wire basketry used to store produce and eggs in the marketplace. #CaliforniaCrafts
This tweet was posted on July 25, 2019.