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"Aurora Australis” by Carlo Séquin was generated on a 3D printer and cast in bronze by Steve Reinmuth in Eugene, OR. Named for the Southern Lights, sharp eyes will notice that the sculpture is also a Möbius band. #MathAtSFO #Mathematics
This tweet was posted on September 10, 2021.
"It’s no secret that SFO has some of the best darn exhibitions in the Bay Area." #MathAtSFO keeps excellent company on @KQEDarts list of 2021's best art and exhibitions. Thanks for the mention! https://t.co/1Qb5LIBsDF
This tweet was posted on December 10, 2021.
A number of mathematical models were displayed at the 1893 World’s Columbian Exhibition to promote the idea that students must visualize algebraic relationships through geometry. Today, algebraic geometry serves as a source of deep insight throughout mathematics. #MathAtSFO
This tweet was posted on April 20, 2022.
Advocates of the “New Math” movement encouraged learning through discovery rather than just memorizing methods of solving problems with the goal of creating a new generation of scientists and mathematicians. #MathAtSFO
This tweet was posted on April 11, 2022.
An outsider cannot unscramble the code without knowing the secret letter. But if many messages are sent, an enemy can statistically detect the pattern of the device and the secret key.
#MathAtSFO #Mathematics #Math #cryptologists #ciphers
This tweet was posted on March 28, 2022.
Artist Stacy Speyer (@cubesandthings) began making a series of geometric metal sculptures as an artist-in-residence at the @Exploratorium. #MathAtSFO
This tweet was posted on October 04, 2021.
Carlo Séquin, a professor in the Computer Science Division at UC Berkeley, takes sculptures of other artists and looks for underlying mathematical structures. He then slightly modifies these structures and produces novel, complex forms. #MathAtSFO #Mathematics
This tweet was posted on September 10, 2021.
Check out our exhibition “Mathematics: Vintage and Modern” for the math behind Rubik’s cubes, Klein bottles, and knots, among much, much more. It’s on view post-security in Terminal 2 and online at https://t.co/loGSK6ryKu #PiDay #MathAtSFO #math
This tweet was posted on March 14, 2022.
Creating a Klein bottle is impossible in our universe—you need four spatial dimensions! In our 3-D universe, every Klein bottle must have a self-intersection, where tubing crosses through a wall. #MathAtSFO #Mathematics #Kleinbottle
This tweet was posted on October 25, 2021.
Do you see the tricks these objects are playing?
Renowned mathematician Kokichi Sugihara of Meiji University in Tokyo creates ambiguous sculptures—solid objects which seem to defy common-sense notions of direction and shape. #MathAtSFO #KokichiSugihara
This tweet was posted on December 29, 2021.
During World War II, all sides used mechanical ciphers. The U.S. military’s M-209 portable crypto machine required users to encrypt text one letter at a time. By turning a crank, the scrambled message printed out on paper tape. #MathAtSFO #Math #cryptology #cipher
This tweet was posted on March 28, 2022.
During the 1930s, the smallest calculator weighed several pounds. Austrian engineer Curt Herzstark (1902–1988) conceived of a pocket-sized calculator that could add, subtract, multiply, and divide. #MathAtSFO
This tweet was posted on February 16, 2022.
During the early twentieth century, the idea that children should spend time at play or in school, led to toys that encouraged learning. At mid-century, a large school-aged population triggered an urgency for new, more rigorous mathematical curricula in the US. #MathAtSFO
This tweet was posted on April 11, 2022.
From 1947 to 1972, the Curta calculator sold for around $125.00 and graced the pockets of engineers, accountants, surveyors, and pilots. Collectors cherish its meticulous engineering, likening the Curta to a fine pocket watch. #MathAtSFO
This tweet was posted on February 16, 2022.
Gears within the M-209 have prime-number ratios to prevent repetitive positions—with over one million positions before the key repeats. The M-209, however, is not fully secure, partly because its prime numbers are short. #MathAtSFO #Mathematics #Math #cryptology #cipher
This tweet was posted on March 28, 2022.
German mathematician Alexander Brill (1842–1935) created some of the earliest mathematical models which were made from plaster. These models allowed students to see the geometry of complex functions, revolutionary to mathematics at the time. #MathAtSFO #mathematicalmodels
This tweet was posted on April 20, 2022.
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.
Henry Segerman is a professor of mathematics @OKState. His research interests include three-dimensional geometry and topology, and mathematical art and visualization. Henry visited our exhibition recently and posed for a portrait with his featured work! #mathematics #MathAtSFO
This tweet was posted on November 30, 2021.
Here, we pack a slide rule into a foam-lined tray using foam blocks and sheets, tissue paper, and metal pins – which are all saved and reused for other packing jobs. Stay tuned for more #behindthescenes content from SFO Museum! #MuseumMonday #MathAtSFO #SneakPeek
This tweet was posted on July 26, 2021.
Intrigued by topology—the study of geometric properties that do not change when you stretch a shape— Bay Area physicist Cliff Stoll began making Klein bottles. #MathAtSFO #Mathematics #Kleinbottle
This tweet was posted on October 25, 2021.
It does everything that a pocket calculator can do except that it is entirely mechanical—no battery, no keypad, no liquid-crystal display. To add numbers, users simply turn a crank. #MathAtSFO
This tweet was posted on February 16, 2022.
It’s your last week to see “Mathematics: Vintage and Modern!”https://t.co/loGSK6ryKu #MathAtSFO #Mathematics
This tweet was posted on April 20, 2022.
Modern cryptosystems rely on huge prime numbers for secure cyphers. Historically, secret messages could be sent by replacing one letter with another. #MathAtSFO #Mathematics #Math #cryptologists #ciphers
This tweet was posted on March 28, 2022.
Our newest exhibition, “Mathematics: Vintage and Modern” is now on display post-security in Terminal 2! Among the objects featured are mechanical calculators, slide rules, teaching tools for students, vintage children’s toys and games and several works of art. #MathAtSFO
This tweet was posted on July 30, 2021.
See “Mathematics: Modern and Vintage” is on display post-security in Terminal 2 and online at: https://t.co/loGSK6ryKu #MathAtSFO #Mathematics #Math
This tweet was posted on October 25, 2021.
See “Mathematics: Modern and Vintage” is on display post-security in Terminal 2 and online at: https://t.co/loGSK6ryKu #MathAtSFO
This tweet was posted on October 04, 2021.
See “Mathematics: Modern and Vintage” is on display, post-security in Terminal 2. https://t.co/loGSK6ryKu #MathAtSFO #Mathematics
This tweet was posted on September 10, 2021.
See “Mathematics: Vintage and Modern” on display post-security in Terminal 2 and online at: https://t.co/loGSK6ryKu
#math #mathematics #MathAtSFO
This tweet was posted on November 30, 2021.
See “Mathematics: Vintage and Modern” on display, post-security, in Terminal 2 and online at: https://t.co/loGSK6ryKu
#MathAtSFO #Mathematics #Math #cryptology #cipher
This tweet was posted on March 28, 2022.
See “Mathematics: Vintage and Modern” on display, post-security, in Terminal 2 and online at: https://t.co/loGSK6ryKu
#MathAtSFO #Mathematics #Math #specificmaththing #mathematicalmodels
This tweet was posted on April 20, 2022.
See “Mathematics: Vintage and Modern” on display, post-security, in Terminal 2 and online at: https://t.co/loGSK6ryKu
#MathAtSFO #KokichiSugihara
This tweet was posted on December 29, 2021.
See “Mathematics: Vintage and Modern” on display, post-security, in Terminal 2 and online at: https://t.co/loGSK6ryKu #MathAtSFO #Math #Mathematics
This tweet was posted on February 16, 2022.
See “Mathematics: Vintage and Modern” post-security in Terminal 2 and online: https://t.co/loGSK6ryKu
#MathAtSFO
This tweet was posted on July 30, 2021.
Speyer created these three polyhedra—a dodecahedron, a hexahedron, and a rhombic triacontahedron, by bending the corners (vertices), bolting them to the edges of each polyhedron, and leaving the faces open. #MathAtSFO
This tweet was posted on October 04, 2021.
Sugihara’s anomalous mirror symmetry takes advantage of our expectation that lines appearing to be straight must be physically straight. Viewed in mirrors, his illusions show a change in appearance when seen in different directions. #MathAtSFO #KokichiSugihara
This tweet was posted on December 29, 2021.