CompressedAir
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Citroen's hybrid concept car gets 115 mpg from thin air (hands-on)
With the Cactus Airflow 2L, Citroen thinks it's found a way to bring the cost of hybrid technology down to earth using nothing but air. Based on a production Cactus model, the natty, low-roofed concept car has a unique hybrid compressed air/gas engine at its core. In a regular hybrid, batteries store energy from braking and coasting downhill. It's the same idea here, but instead of storing electricity, the Airflow 2L compresses air and stocks it in a tank. It can then be released when needed, powering the car during wasteful acceleration or city driving. While that may sound wonky, the system has been tested to an rather astonishing 115 mpg or so. Still, why bother with an untested system when existing hybrid drivetrains are so mature?
Drivable 500,000 piece Lego car runs on compressed air, insanity (video)
If you're still stuck on that Lego Mindstorm EV3 project, then you might have a tiny inkling of how the folks from the Super Awesome Micro Project feel. They've just pieced together a car with 500,000 of the plastic blocks that can actually hit the road, thanks to four radial engines with 256 pistons that run on compressed air. It was designed and built by 20-year-old Romanian Lego savant Raul Oaida in 20 months after he and a partner raised "tens of thousands" of dollars from Aussie backers. It'll only cruise at 12-17 mph hour (since it's built of freaking Lego), but as shown in the video after the break, you probably wouldn't want to go any faster -- especially given the seats.
First grid-scale compressed air battery now operational
Compressed air batteries have long promised truly clean energy storage, but they haven't scaled large enough in recent years to be viable companions to renewable power sources. That changes now that SustainX has switched on the first modern air battery large enough to join an electrical grid. The company's new ICAES (Isothermal Compressed Air Energy Storage) system in Seabrook, New Hampshire can hold 1.5 megawatts of power versus the kilowatt-level capacities of its rivals. Despite its size, ICAES is sustainable; it doesn't require 'dirty' energy for either compression or releasing air to its generator, and the supply won't degrade like that of a chemical battery. The New Hampshire system is just a demonstrator to attract interest, but SustainX expects to have its first commercial battery running in China next year. If ICAES (and technology like it) proves successful, we could see more solar and wind farms that keep delivering electricity when they're otherwise idle.
Peugeot promises fuel-saving Hybrid Air system in cars by 2016
It's far from the first automaker to attempt a car that runs on compressed air, but Peugeot Citroen is now touting a new system that it says could be available in at least some of its small cars by 2016. As suggested by the "Hybrid Air" moniker, this system doesn't run solely on air -- it also incorporates a traditional gasoline engine that Peugeot promises will combine for a 90 percent increase in vehicle range in urban driving, or offer up to 50 minutes of driving without using any gas. The gas engine would kick in more often during highway driving, putting the overall fuel savings at around 35 percent. As Peugeot notes, this system is just one step towards its goal of a car that gets 2L/100KM (or 117 miles per gallon), which it hopes to achieve by 2020. You can get a quick overview of the Hybrid Air system in the video after the break.
Toyota breaks compressed air speed record, hits 80.3MPH with Ku:Rin
Thankfully styled like the more dashing cousin in the typically awkward-looking compressed air car family, Toyota's Ku:Rin (meaning Air-Wheel) has smashed the speed record for cars powered by (not necessarily hot) air. Sure, measuring a svelte 0.8m across, there's certainly no space for the kids or the groceries, but it can reach a maximum speed of 80.3MPH. All that driving force is generated from compressed air which acts as the fuel, expanding and powering the single motor. Don't expect air compressors to replace those petrol pumps just yet -- the range for this streamlined beauty is a meager two miles. Take a look at NHK's report in More Coverage for redefining of "blown away."
MDI's Airpod runs on compressed air, challenges Segway for dork gold
While outfits like Lightning and Tesla are attempting to make eco-friendly cars sexy, MDI is taking things in a completely different direction. The recently-made-official Airpod looks practically nothing like anything seen on American roadways today, which is probably why it's apt to hit the streets of France and New Zealand first. The oddly shaped automobile will reportedly reach a top speed of 70kmh (44mph) and cruise 100-kilometers (62 miles) on just $2. The secret? A minuscule compressed air-powered engine on each of the rear wheels, both of which get instructed by the car's joystick (Atari fans, rejoice!). We're told that reloading the engine with hot air takes less than two minutes, and if all goes well, the first of the urban vehicles will hit the cobblestones in the spring of 2009. Is that the sound of Tata's NANO feeling threatened, or what?[Via EcoGeek]
MDI's AirCar hits the streets, no one is safe. Especially not the air. Or the cars.
We've been tracking the AirCar for near centuries in Engadget Time, but MDI's little car that could-maybe-possibly seems to have finally taken to the streets. The car has been seen sporting French plates, meaning it's actually been approved for use there -- unsurprising, considering the car's 2009 planned launch in France, but exciting nonetheless. The car boasts a 50 mile range running off of compressed air, and can stretch that further by heating up the air with another power source. It might not solve world hunger, but we're just happy to see compressed air playing a featured role outside of cleaning our keyboard and propelling Airsoft pellets at our cat.**We're kidding. Cats are awesome.[Via AutoblogGreen]
Mac OS X password recoverable from RAM?
In a recent post over at Ars Technica, they say that Mac OS X users could have their login passwords recovered through physically accessing the RAM. This comes after FileVault was proven to be cracked. The article notes that Mac OS X and certain applications store the user's password in memory, leaving it there after you've logged in. While locally-running apps cannot readily retrieve the password, someone could get access to the contents of RAM after the computer has been rebooted or shut down. This could be accomplished by physical means and might require the hacker to remove the RAM cover on your Mac and chill the RAM, as suggested by Edward Felten's research team at Princeton. This freezing allows the information to stay on the RAM for longer than the normal 2.5 to 35 seconds -- allowing someone to place it in another computer and read the contents.In a separate approach to the password-in-RAM vulnerability, CNET witnessed an EFF demo of an attack using a custom NetBoot "EFI memory scraper" to record the RAM contents on reboot and save the data as a file on another machine over the network -- the attackers were able to clearly find the login password in the file. Again, this attack requires physical access to the machine (in order to force the NetBoot via holding down the N key on restart) within a minute or two of shutdown. However, an attacker could conceivably target a machine that was locked or sleeping (with RAM contents 'live'), power it off and back on, and use the NetBoot attack immediately.While Apple has been made aware of the attack (notified on February 5), no fixes for these issues were reported in the 2/11 security update. According to CNET, an Apple spokesperson said they were aware of the issues and were "working to fix it in an upcoming software update." Until this update comes out, you may want to set a firmware password for your Mac, or wait longer to leave your unattended Mac after a shut down. Alternatively, we have lovely TUAW-branded tin foil hats available for purchase. [via Ars Technica]
Indian air-powered City Cat car prepares for production run
The first commercial car to be powered by compressed air could be about to hit the production lines, as Indian automaker Tata Motors prepares to build ex-Formula One engineer Guy Nègre's design. We're not certain if it's the same air car that we hit just under three years ago, but if it is, it's about time! The City Cat runs on nothing but compressed air -- which can be refueled at "air stations," and overnight using a built-in compressor -- with a not too shabby top speed of 68MPH and a range of 125 miles. The Air Car designers are working on a hybrid version that can compress air while it's operating, potentially making cross-India journeys possible: Toyota Prius, eat your hybrid heart out. As EcoGeek points out, the game ain't up just yet for completely emissions free travel since the problem of the source of the electricity (usually acquired from fossil fuels) has yet to be solved. Plus, the fugly design really doesn't do it any favours: why does "green" have to mean "gah?"[Via Digg]
Memorex adds scent to prevent kids from huffing its Air Dusters
No joke, man, Memorex -- yeah, that Memorex -- recognized that teenage huffers are so into snorting their compressed-gas dusting products they went ahead and added a deterrent ("bitterant", a "bitter safety additive") to keep impressionable youth from getting all whacked up on the stuff. So far as we can tell, their new, smellier Air Dusters won't be branded any differently, so the next time you go "bagging" or "dusting" (we love the fact their press release quotes euphemisms for getting high), don't be too surprised at the awful and/or vomit-inducing scent emitted. Remember kids: no huffin.
