THIS communication reports observations made by us of optical echoes from atmospheric constituents (presumably dust) at heights of 60–140 km. They were detected with an optical radar. The techniques ...

Abstract: Speckle has been shown to cause significant degradation to the imaging quality of laser imaging systems. However, in certain complex imaging environments, it can also act as an effective ...

Charlie Kirk shooting witness says she saw "blood pouring out everywhere" France arrests hundreds as 'Block Everything' protests erupt across country We can singe Putin’s beard, and do it without ...

In this video, i will show you how to create Ocean Surface with Trapcode Mir in After Effects. Effects and Preset used: Trapcode Mir Lens Flare Hope this video useful for you. Don't forget like and ...

Saha Institute of Nuclear Physics, A CI of Homi Bhabha National Institute, 1/AF Bidhannagar, Kolkata 700064, India ...

Department of Chemistry, Shanghai Stomatological Hospital & School of Stomatology, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, State Key Laboratory of Molecular ...

Deep beneath the Earth’s surface, in a layer called the mantle, heat builds up and pulses, causing rock to slowly rise toward the crust. This movement is known as a mantle upwelling, and it plays a ...

Laser method could help to pinpoint the age of many fossils, but some palaeontologists say further research is needed to verify the technique. Scientists in China have calculated the direct age of a ...