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Tuesday, May 30, 2017

IEEE Spectrum (May 29, 2017): Differential Lidar Catches "Fugitive" Methane on the Fly

IEEE Spectrum (May 29, 2017): Differential Lidar Catches "Fugitive" Methane on the Fly

"...(Their) Methane Monitor is a differential-absorption lidar (DIAL) methane detection system that uses two lasers of slightly different infrared wavelengths to map the ground and measure atmospheric methane. Methane strongly absorbs one of the wavelengths (at about 1,645.55 nm, the “on-resonance beam”) and is virtually transparent to the other—at about 1645.4 nm, the “off-resonance beam”)." IEEE Spectrum feed

       Physics.org (June 26, 2013): Developing a new laser to detect methane leaks

Saturday, May 13, 2017

Ars Technica (May 11 2017): Cloudflare, sued by its first “patent troll,” hits back hard

Ars technica (May 11 2017): Cloudflare, sued by its first “patent troll,” hits back hard

"...The '335 patent was filed in 1998 and until recently was owned by inventor Oliver Kaufmann, apparently the head of a group of small IT companies in Germany. Patent office records show the patent was purchased by Blackbird for $1 plus "other good and valuable consideration."

Saturday, May 06, 2017

Nikkei Asian Review (May 5 2017): Thailand asks Facebook to block posts it deems illegal

Nikkei Asian Review (5/5/2017): Thailand asks Facebook to block posts it deems illegal 

"...Thai internet service providers used to block certain Facebook posts by themselves to comply with court orders, but since last year Facebook's encryption upgrades have made this more difficult."