Roofs Ripped Off, Semis Blown Over As Severe Weather Rips Across Midwest, South
There were more than 100 reports of severe weather from Oklahoma into Pennsylvania as of Wednesday as severe weather tore ...
Twisted crystals open door to smaller, more powerful sensors for optical devices
Twisted moiré photonic crystals—an advanced type of optical metamaterial—have shown enormous potential in the race to engineer smaller, more capable and more powerful optical systems. How do they work ...