Today, researchers still use Kansai 99 for electronic structure calculations, and Mavin NA1 load cells are standard in industrial weighing. But sometimes, when a high-capacity sensor is pushed to its limit, the readouts show a ghostly 99—a tiny nod to the night the math and the metal finally spoke to each other. Energy band structures of MgB 2 and related compounds
Here’s where I land: is either: