Optics in Our Time

https://t.co/znWv2chP6s "Then, we review basic quantum communication schemes with single and entangled photons and discuss recent experimental progress in ground and ..."

@PhysicsHigh "Slowest speed of light measured in matter on Earth" is zero... but that, or whatever speed given there, is likely to confuse students. Especially given it's for different reasons to the "speed of light at Sun's centre". A nice explainer: http

@imTolstoyevski "Newton explained that the phenomenon of diffraction was only a special case of refraction that was caused somehow by the ethereal atmosphere near the surface of the bodies." https://t.co/ZGBHzRj1Se

22- UAV Sensors for Environmental Monitoring https://t.co/hW04lSSfTb 23- Observing Geohazards from Space https://t.co/loOKmCjmMR 24- Atmospheric Composition Observations https://t.co/KuPmtZUDl6 25- Optics in Our Time https://t.co/MaQwJXUq3H