This morning on my walk I noticed a sign about energy-saving LED (light-emitting diode) street lamps. The sign is hard to read here, but it says that the LED lighting was provided by the Friends of Christopher Columbus Park. It also says that “the City of Boston is testing different types of LED lighting systems around the town and wants to know what you think.” Tell the City here.
The main reason I’m interested is that John is in the optics business, and his team is always working on LED, 3-D, and other optical projects beyond my ken. (I blogged about his Eastern European optical engineers here and here. John and Gregg tweet at OFH_John and gfavalora.)
And while we’re on the subject of optics, check out an article about “bizarre optical phenomena, defying the laws of reflection and refraction. …
“Cambridge, Mass. – September 1, 2011 – Exploiting a novel technique called phase discontinuity, researchers at the Harvard School of Engineering and Applied Sciences (SEAS) have induced light rays to behave in a way that defies the centuries-old laws of reflection and refraction.” They bend light. Kind of like a fun house mirror.
You can see what they are talking about here.