(via Steve Mould) I love the black flame experiment works because of the sodium absorption and emission spectrums. Glassblower glasses make use of the absorption of Neodymium and Praseodymium to block ...
HYDERABAD: Veera Dynamics, a Hyderabad-based defence tech startup that has developed a next-gen stealth material called RAMA (Radar Absorption & Multispectral Adaptive), has now teamed up with ...