By Soulskill from Slashdot's it-all-comes-down-to-focus department
An anonymous reader writes "To boost its Wi-Fi capacity in packed lecture halls, Georgia Institute of Technology gave up trying to cram in more access points with conventional omni-directional antennas, and juggle power settings and channel plans. Instead, it turned to new high-gain directional antennas. They look almost exactly like the bottom half of a small pizza box, and focus the Wi-Fi signal from the ceiling-mounted access point in a precise cone-shaped pattern, covering part of the lecture hall floor. Instead of the flaky, laggy connections, about which professors had been complaining, users now consistently get up to 144Mbps (if they have 802.11n client radios). 'Overall, the system performed much better' with the new antennas, says William Lawrence, IT project manager principal with the university's academic and research technologies group. 'And there was a much more even distribution of clients across the room's access points.'"Read Replies (0)
By Soulskill from Slashdot's superfluous-frames-per-second-battle-continues department
crookedvulture writes "The back and forth battle for PC graphics supremacy is quite a thing to behold. Last week, Nvidia cut GeForce prices in response to the arrival of AMD's latest Radeons. That move caused AMD to rejigger its plans for the new Radeon R9 290, which debuted today with a higher default fan speed and faster performance than originally planned. This $400 card offers almost identical performance to AMD's flagship R9 290X for $150 less. Indeed, it's often faster than Nvidia's $1000 GeForce Titan. But the 290 also consumes a lot more power, and its fan spins up to 49 decibels under load. Fortunately, the acoustic profile isn't too grating. Radeon R9 290 isn't the only new graphics card due this week, either. Nvidia is scheduled to unveil its GeForce GTX 780 Ti on November 7, and that card could further upset the balance at the high end of the GPU market. As AMD and Nvidia trade blows, PC gamers seem to be the ones who benefit."
Additional reviews available from AnandTech
, PC Perspective
, Hot Hardware
, and Tom's Hardware
.Read Replies (0)
By timothy from Slashdot's david-bowie-on-high-alert department
neo12 writes "India has successfully launched a spacecraft to the Red Planet — with the aim of becoming the fourth space agency to reach Mars."
As our previous mention of the launch
notes, getting to Mars by rocket is a long haul: if all goes well, it will be about 10 months until Mangalyaan
reaches orbit.Read Replies (0)