New BlackBerry
E-mail Spy?
Texting Champs
by Engadget
by Engadget Mobile
by TUAW
by Download Squad
by WoW Insider
CNET provides the latest tech news, unbiased reviews, videos, podcasts, software, and downloads, making tech products easy to find, understand and use.
8.8 out of 10
KEF KHT3005 (black)
The KEF KHT-3005 is one compact, beautifully designed speaker package with solid aluminum satellites that feature unique driver technology to produce incredible clarity. Meanwhile, the equally astounding dual 10-inch, 250-watt powered subwoofer delivers ultradeep bass. Full Review
8.8 out of 10
KEF KHT3005 (silver)
The KEF KHT-3005 is one compact, beautifully designed speaker package with solid aluminum satellites that feature unique driver technology to produce incredible clarity. Meanwhile, the equally astounding dual 10-inch, 250-watt powered subwoofer delivers ultradeep bass. Full Review
8.8 out of 10
Aperion Intimus 4T Hybrid SD (cherry)
Six-piece home theater speaker package with slender towers; compact center and surround speakers; remote controlled subwoofer with adjustable equalization; gorgeous furniture grade real cherry wood or black gloss finishes; 10 year warranty; 30 day in-home trial; free shipping. Full Review
8.7 out of 10
Dish Network ViP622 (200-hour DVR)
Receives and records new MPEG-4 AVC programming, including local and other HD channels not available on older receivers; dual-output mode for secondary TV; can record up to three HD shows simultaneously while playing back a fourth; 30-second commercial skip; exceedingly quick response time; well-designed, highly customizable interface; search function includes history; superb remote; impressive image quality; USB port enables connections to portable media players and external hard drives to expand storage capacity. Full Review
8.7 out of 10
Sony PlayStation 3 (80GB)
Swanky design with quiet operation; all games in high-definition; PSP-like, easy-to-use interface; plays Profile 2.0 high-definition Blu-ray movies in addition to upscaling standard DVDs; built-in Wi-Fi; 80GB hard drive; HDMI output with 1080p support; no external power supply; free online gaming service. Full Review
8.7 out of 10
Sling Media Slingbox Pro-HD
Streams home TV and other audiovisual sources to any broadband-connected Mac, Windows PC, Windows Mobile, Palm, or Symbian device in the world; streams HD video (bandwidth permitting); no host PC or monthly charges required; easy-to-use software; controls almost all cable and satellite boxes and DVRs; superb video quality over home network, good video quality via the Internet; simple, straightforward setup. Full Review
8.6 out of 10
Wi-Ex zBoost YX510-PCS-CEL cell phone signal extender
The Wi-Ex zBoost YX510-PCS-CEL significantly boosts your cell phone reception and is easy to operate. Also, it uses a wireless connection to your phone. Full Review
8.6 out of 10
Turbo Charge Tc2 portable cell phone charger
The Turbo Charge Tc2 portable cell phone charger successfully delivers emergency power to your cell phone. It's easy to use and comes with a couple of surprising features. Full Review
8.3 out of 10
Sanyo SCP-5300 (Sprint)
Vibrant color display; built-in camera with flash; compatible with Sprint PCS Business Connection software; comes with extended battery; solid call quality. Full Review
9.3 out of 10
Canon EOS 1D Mark III
Extremely fast, 10-megapixel continuous shooting; very low noise; highly customizable; well-designed body with weather sealing; 3-inch LCD; abundant optional accessories. Full Review
9.3 out of 10
Nikon D3 (body only)
Full-frame sensor; well designed, pro-level weather-sealed body; very low noise, even at extremely high ISOs; fast. Full Review
9.0 out of 10
Canon EOS-1Ds Mark III
Very low noise, high quality images; 21.1 megapixels; live view shooting; pro-level build-quality and performance. Full Review
9.1 out of 10
HP Pavilion Slimline S3330f
Outstanding price-to-feature ratio; Blu-ray/HD DVD combo drive; small, flexible case; great performance thanks to a speedy dual-core AMD CPU Full Review
8.7 out of 10
Dell XPS 630
Fastest gaming performance in its price category (mostly); distinctive chassis; lots of expandability; Nvidia software makes overclocking easy. Full Review
8.5 out of 10
Apple iMac (24-inch, 2.8GHz)
A minor specification update results in some significant performance gains; graphics upgrade an option on this 24-inch model; sleek, polished design didn't receive an update, but we won't start clamoring for a new design until the current one is at least 12 months old. Full Review
Other Weblogs Inc. Network blogs you might be interested in:
Reader Comments (Page 1 of 1)
Clive @ Oct 16th 2007 5:27PM
When something sounds too good to be true, then mostly it is. The Hi-Pa Drive™ from PML Flightlink Ltd that powers the Lightning is rated at 120Kw PEAK each (not 240 KW). One for each wheel means a total of 480Kw equivalent to 680Hp. So where does the additional 20+Hp come from? Well the marketing department decided that 700+Hp sounds better than 680Hp. Anyone in the car business should know that it is easy to talk big power and a bit more difficult to actually make it. Same for Tesla. The AC Propulsion motor in the Tesla roadster is rated at 150Kw peak. As soon as it gets installed into the Tesla it magically becomes a 180Kw peak motor.
Another point of relevance is that electric motors have two power levels raings of major importance, the PEAK power level and the CONTINUOUS power level. The UQM motor that powers the Phoenix cars is 150Kw peak and 100Kw continuous. The Tesla motor is 150 (180?) Kw peak and only 50 Kw continuous. The Hi-Pa drives powering the Lighting is 120Kw peak and I'm guessing only about 30Kw continuous, when considering the mass (25Kg) of the motors. Strangely the continuous power ratings of the motors are not widely advertised.
The final and I believe killer point (that no-one seems to mention or even know about) is that the electric motors can be run at their peak power levels for a very short time, I'm talking 1 to 2 minutes, depending on the cooling system. UQM motors are water-cooled and the Tesla motor isn't. Not sure about the Hi-Pa, probably not. The point is that you can only use the electric motor so that the average power usage over time does not exceed the continuous rating.
So comparing a 700Hp (680Hp) Lightning to say a 650Hp Aston Martin is like comparing apples with lemons. The Aston can run it's engine (theoretically anyway) continuously at 650Hp whereas the Lightning can run it's engine at 700Hp for maybe 2 minutes (probably less). It comes down to the duty cycle. The ICE vehicle can use it's power at a 100% duty cycle of it's maximum power, wheras the electric motor vehicle can only use it's power at something like 30% of the peak power rating.
Well this short time that you can run the electric motor at peak rating is long enough to run a short drag race and beat Astons, Ferraris and Porches, and impress ignorant people tremendously. But put them on a road track for a race of say 10 laps and in a very short time (after the first or so lap) the electric cars will start to look utterly ridiculous. If you should put the electrics on a high speed oval, they would only be able to run at their claimed top speed for a minute or two, whereafter they would have to slow down to something probably in the order of 80 mph.
In fact the Lightning is really a 120Kw car that has the capability to put out 480Kw for a very limited time. Same for the Tesla, it is a 50Kw car that can output 150Kw for short periods of time.
I drive a very slow car (BMW Z4M @ 250Kw) but around a road track or a high speed oval for a few laps the BMW will beat both the Tesla and the Lightning quite easily - well probably after the first or second lap.
I have never in my life seen such marketing hype and spin as is now happening with the electric cars, that portray the performance of these vehicles to be much higher by a factor of 2 to 3 times, than they really can deliver. It is really a shame because the truth will come out eventually, and this could be a big negative for electric cars.