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dec_burke

Robbins v. Lower Merion School District - Wikipedia, the free encyclopedia - 4 views

  • Covert surveillance capability
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    Covert surveillance capability The school loaded each student's computer with LANrev's remote activation and tracking software. This included the now-discontinued "TheftTrack".[17][25][26][27] While TheftTrack was not enabled by default on the software, the program allowed the school district to elect to activate it, and to enable whichever of TheftTrack's surveillance options the school desired.[8] The school elected to enable TheftTrack to allow school district employees to secretly and remotely activate a tiny camera webcam embedded in the student's laptop, above the laptop's screen.[17][25][26][27] That allowed school officials to secretly take photos through the webcam, of whatever was in front of it and in its line of sight, and send the photos to the school's server.[8][17] The system snapped and sent a new photo every 15 minutes when the laptop was on, and TheftTrack was activated, though school employees could adjust the timeframe to as low as one-minute intervals.[8][28][29] LANrev disabled the webcams for all other uses (e.g., students were unable to use Photo Booth or video chat), so most students mistakenly believed that their webcams did not work at all.[30] In addition, TheftTrack allowed school officials to take screenshots (pictures of whatever was on the laptop's screen), and send them to the school's server.[8][17] Furthermore, a locating device would record the laptop's Internet (IP) address, enabling district technicians to discover which city the laptop was located and its internet service provider. (A subpoena to the provider would be required to pinpoint the exact location.) [29] In addition, LANrev allowed school officials to take snapshots of instant messages, web browsing, music playlists, and written compositions.[17][31] After sending the image to the school's server, the laptop was programmed to erase the "sent" file created on the laptop. That way, there would not be any trace by which students might realize that they were being watche
dec_burke

BBC News - Military fact file: Drones - 3 views

  • These strange-looking planes carry a wealth of sensors in their bulbous noses: colour and black-and-white TV cameras, image intensifiers, radar, infra-red imaging for low-light conditions and lasers for targeting. They can also be armed with laser-guided missiles.
  • Each multi-million dollar Predator or Reaper system comprises four aircraft, a ground control station and a satellite link.
  • Although drones are unmanned, they are not unpiloted - trained crew at base steer the craft, analyse the images which the cameras send back and act on what they see
Declan Burke

Data Centers Waste Vast Amounts of Energy, Belying Industry Image - NYTimes.com - 1 views

  • McKinsey & Company analyzed energy use by data centers and found that, on average, they were using only 6 percent to 12 percent of the electricity powering their servers to perform computations. The rest was essentially used to keep servers idling and ready in case of a surge in activity that could slow or crash their operations.
  • To guard against a power failure, they further rely on banks of generators that emit diesel exhaust.
  • Even running electricity at full throttle has not been enough to satisfy the industry. In addition to generators, most large data centers contain banks of huge, spinning flywheels or thousands of lead-acid batteries — many of them similar to automobile batteries
dec_burke

da Vinci® Surgery - Glossary - 1 views

  • Stereo or binocular vision created by two optical channels, as in two eyes. Three-dimensional vision blends the separate images seen by each eye into one composite image, which gives us the ability to perceive depth and judge distances.
  • A movable, rotating joint, as in the human wrist or as in da Vinci’s patented EndoWrist® instruments
  • A 3-dimensional conformal radiation therapy (3D-CRT) uses sophisticated computer software to conform or shape the distribution of radiation beams to the 3-dimensional shape of the diseased prostate, sparing damage to normal tissue in the vicinity of treatment.
  • ...3 more annotations...
  • A small tubular lens device, usually attached to a video monitor, and video camera, and used to visualize the inside of the body.
  • Minimally invasive surgery (also known as MIS, minimal access, keyhole surgery, laparoscopic, or endoscopic surgery) is intended to eliminate the most physically and emotionally traumatic elements of conventional open surgery, including pain and lengthy recovery. Advances in MIS allow surgeons access to affected tissues and organs through very small incisions.
  • Surgery performed using the assistance of robotic technologies. Existing systems like da Vinci are designed to provide surgeons with enhanced capabilities rather than designed to operate on their own.
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