Originally published on Wed October 23, 2013 1:22 pm
Archimedes would be proud of the town of Rjukan, Norway. So would Sam Eyde.
Rjukan, home to about 3,500 residents and situated about 70 miles west of the capital, Oslo, has installed a trio of giant mountaintop mirrors to focus light into the valley town's square during the cold (and dark) winter months.
Originally published on Wed October 23, 2013 7:30 am
Outrage over the posting of a video showing the decapitation of a woman has led Facebook to say it is going to "combat the glorification of violence ... [by] strengthening the enforcement of our policies." It has also removed the video.
Why do lamps have to stand apart from the surfaces you're trying to light? That was a question noodling around the mind of German design student Simon Frambach, who ultimately came up with the Soft Light, a thick, flexible lampshade that can be shoved into dark corners, furniture gaps or even used as a pillow.
Copy machines can be found in every office, and most of us take them for granted. But 75 years ago, the technology that underpins the modern photocopier was used for the first time in a small apartment in Queens.
Inventor Chester Carlson used static electricity created with a handkerchief, light and dry powder to make the first copy on Oct. 22, 1938.