NTSB chief Robert Sumwalt says investigators believe it played a role. The mid-air explosion sent debris down onto a Denver suburb.

NTSB chief Robert Sumwalt says investigators believe it played a role. The mid-air explosion sent debris down onto a Denver suburb.
IMAGE: Schematic of the CuAl2-type crystal structure of the newly created superconducting Co0.2Ni0.1Cu0.1Rh0.3Ir0.3Zr2 compound, with an HEA-type Tr site…. view more Credit: Tokyo Metropolitan University Tokyo, Japan – Researchers from Tokyo Metropolitan University mixed and designed a new, high entropy alloy (HEA) superconductor, using extensive data on simple superconducting substances with a specific crystal structure. HEAs…