Optics

LED-lit urban farms

  LED-lit urban farms aim to transform blighted cities with jobs, fresh food article tells about an interesting application for LEDs: A group of high-tech urban pioneers is using LEDs to power a large indoor vertical farming system in Newark, NJ. When complete, AeroFarms‘ latest urban agriculture system is expected to enough produce pesticide-free greens

Researchers Develop Purely Optical Cloaking

Technologies for making things invisible is always interesting. There are active and passive technologies that have been tried for this. My earlier posting Mercedes uses LEDs to create invisible car showed and active technology that used camera + huge LED display to make invisibility effect. Yesterday I saw a new interesting passive one. Researchers Develop