Want to show support for your favorite team? What if you could change the color of your car to black and gold (or red and white) in seconds?
Scientists have developed a paramagnetic paint that can change color like a football fan changes a T-shirt. It’s all part of the amazing world of materials that’s covered in three-minute podcasts on “Materials Radio,” a new service of ASM International, the materials information society.
“Have a New Car Color Every Day” was written and produced by Andrea Dangelewicz of the Clemson University Materials Advantage Chapter. Here’s how the quick-change paint works:
While you drive, pushing a button sends electric current through a special polymer paint containing paramagnetic nanoparticles. The current creates a magnetic field that affects the spacing of crystals within the particles, which changes their ability to reflect light…and voila! A white car becomes Steelers black…or Cardinals red.
Nearly two-dozen podcasts on “Materials Around Us” and “The Science of Materials” are available on Materials Radio to bring the excitement of materials to middle school students, parents and teachers. Visit www.materialsradio.com for free downloads.
Materials Radio is an initiative of the K-12 Education Subcommittee of ASM International’s Education Committee. “The podcasts come from the most creative minds in our university membership,” said K-12 chair Jan Edwards. “Each one was written and recorded by Materials Advantage students who want to share their love of materials with middle school students.”
“It’s all about making materials science accessible and fun.”
ASM International is Everything Material, the Ohio-based society serving the materials science and engineering community. With 36,000 members worldwide. ASM provides authoritative information and knowledge on materials and processes from the structural to the nanoscale.
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Plants and algae use the enzyme Rubisco to fix carbon dioxide, removing it from the atmosphere and converting it into biomass. Algae have figured out a way to increase the efficiency of carbon fixation. They gather most of their Rubisco into a ball-shaped microcompartment called the pyrenoid, which they flood with a high local concentration of carbon dioxide. A team of scientists at Princeton University, the Carnegie Institution for Science, Stanford University and the Max Plank Institute of Biochemistry have unravelled the mysteries of how the pyrenoid is assembled. These insights can help to engineer crops that remove more carbon dioxide from the atmosphere while producing more food.
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For the first time, physicists have successfully imaged spiral magnetic ordering in a multiferroic material. These materials are considered highly promising candidates for future data storage media. The researchers were able to prove their findings using unique quantum sensors that were developed at Basel University and that can analyze electromagnetic fields on the nanometer scale. The results – obtained by scientists from the University of Basel’s Department of Physics, the Swiss Nanoscience Institute, the University of Montpellier and several laboratories from University Paris-Saclay – were recently published in the journal Nature.
Multiferroics are materials that simultaneously react to electric and magnetic fields. These two properties are rarely found together, and their combined...
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