According to the BBC, researches have created a type of LED-powered streetlight that could "radically reduce light pollution."
According to the researchers, conventional street lamps - which use high-pressure sodium or mercury vapour - scatter up to 20% of their energy horizontally or vertically because it is difficult to control their beams.
It is easier to direct light from LEDs because it is being emitted from a smaller area.
So, while manufacturers controlled the direction of the light rays from older lamps using a reflector typically made out of polished aluminium, they can now take advantage of lenses to be more precise.
The researchers say the best LED (light-emitting diode) streetlamps on the market direct about 10% of their energy horizontally or vertically.
But they claim their own invention could further reduce the amount to just 2%.
|GPS Navigation Without Satellites|
|System Administrator Appreciation Day|
|Origami USB Stick|
|10 Weird Forms of Human Transportation|
|The Boeing 787 Dreamliner: "an object lesson in how not to build an airplane."|
|“Session replay scripts collect can’t reasonably be expected to be kept anonymous.”|
|“Governments around the world are dramatically increasing their efforts to manipulate information on social media.”|
|“A photograph of the last male northern white rhinoceros.”|
|iotacons: Pixelated Art by Andy Rash|
|How to Avoid Jury Duty|
|“When automation starts displacing lawyers, accountants and bankers, then we might see some push-back.”|
|“Semis, not personal cars, are the smartest use of autonomous technology.”|
|“A fraudster poses as an attractive woman and encourages a man to masturbate in front of a webcam.”|
|Short Story of Similar Objects|
|“The homemade airplane does indeed fly!”|
|“The education industry as a whole is a con.”|
|CaptchaTweet: Write Tweets in Captcha Form|