Items tagged with high speed

We've covered Elon Musk's proposed Hyperloop before, including some speculation on what kind of system he might propose. The mass transit concept unveiled today is similar, in some respects, to the evacuated vacuum tube first proposed by the Rand Corporation in 1972, but varies in a number of key areas. It doesn't rely on maintaining a full vacuum, but instead offers an atmosphere roughly 1/6 pressure found on Mars, or equivalent to cruising Earth at 150,000 feet. As expected, the initial LA - SF proposed run would accelerate passengers to trans-sonic velocities, but they wouldn't do it using maglev. Instead, a linear induction motor is used to provide the necessary acceleration and deceleration,... Read more...
              When we last took a look at some DDR2 memory back in October of 2004, the technology was still a bit new and didn't seem to offer any tangible performance benefits over standard DDR RAM.  Higher speeds could be obtained with DDR2 though, and these modules required less voltage, thus lowering overall power consumption.  The caveat with DDR2, however, was that early sets were much higher priced per MB than older DDR memory, and latencies were generally much higher, which kept performance on par if not slightly off the existing model.  The Intel camp was left without any options, as the 925 series of chipsets... Read more...