Materials Science
Perovskite (say it: pə-ˈräv-ˌskīt, -ˈräf-). It may never become a household word, and the chemical formulas (eg., CH3NH3PbI3−xClx ) are as long as the name. But if you find yourself, in the not-so-distant future, adding new-and-improved solar panels to your roof, they may well contain a perovskite layer. If they do, it will be these “wonder materials” that will make your panels cheap enough to ma…
Since the haiku post was well received, and since we have another three pieces online today – each on a different finding and each interesting in its own right – I have decided to return to the haiku format. Among other things, there is something quite satisfying about distilling complex scientific findings down to 17 little syllables – like writing the perfect tweet, but more so. In any case, fo…
Is anyone old enough to remember the ad in which two people walking down the street while snacking accidently bump into each other and discover peanut butter on a chocolate bar? Well, it turns out that when physics students run into each other on the street, the result is a quasicrystal with topological properties. The students in question were members of two different labs in two different physi…
Ever imagined that an Xbox controller could help open a window into the nanoworld of groundbreaking physics? Well, check out the video above. Brookhaven scientist Ray Conley designed that one-of-a-kind machine to grow (through a technique called sputtering deposition) atomically precise lenses that can focus x-rays to within one billionth of one meter, revealing the internal nanoscale structure o…
See the way those smooth, amorphous blobs rapidly transform into textured honeycombs? Something similar is probably happening right now inside your laptop or smartphone’s battery, providing you with portable power. But the cherished efficiency and portability of those compact lithium-ion batteries comes with a cost: each cycle of discharge/recharge degrades the material’s essential structure and …
High-temperature superconductors (HTS), capable of storing and transmitting electricity with perfect efficiency, are a theoretical stumbling block. The mechanism underlying HTS behavior is a mystery, and the subject of significant contention and investigation among scientists. This puzzle, unlike headline-making unknowns such as dark energy (admittedly awesome and worth losing sleep over), could …
The term “floating water bridge” may sound nonsensical, but it’s the most logical name for a phenomenon that occurs when two beakers of water set slightly apart are zapped with high-voltage electricity and the water molecules jump across the gap to connect and form a thin thread of water. The molecular structure that suspends this liquid bridge has stumped scientists for over a century. Now, a te…
One of physics’ greatest tricks is polarization. Take magnets, for example, such as those commonly found on refrigerators holding up shopping lists and Christmas cards. These have the familiar north/south polarization that we can experience as attraction and repulsion. That magnetic orientation persists all the way down to the individual molecules, which actually align to cause the larger-scale b…
