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EV3 NXT New play experience with apps Yes No Connect to Apple devices Yes No Voice control via apps Yes No Connect your robot to Internet (via USB host) Yes No Online building instructions – models in total 17 None 3D building instructions (the 5 main models) Yes No Fewer building steps, less time Yes No Social web site for the user Yes Yes for adults Non-verbal paper instruction Yes No Button backlight (3 colors) Yes No Loudspeaker Premium Basic Motor ports 4 3 Memory 16 MB 256 KB Screen resolution 178x128 pixels 100x64 pixels USB Host port Yes No Master/slave robot control(Bluetooth) 1 master/7 slaves 1 master/3 slaves Infrared Sensor Yes No Infrared Beacon Yes No SD card reader Yes No Linux on intelligent brick Yes No Processor ARM 9 ARM 7

As in the previous set, the Mindstorms NXT , the EV3 comes with hundreds of Lego bricks, plus four motors and five sensors, including a new infrared unit that can be used as robotic eyes or to allow a robot to follow a remote control. This year marks the 15th anniversary of the Mindstorms kit, and Lego really wanted to make the product more exciting to "an audience of children who have grown up with technology." So the company set out to redesign the kit by making it, among other things, "more hackable," to use Lego's own words. One of the biggest upgrades is the EV3 programmable brick, the heart of every Mindstorms project. The brick has been revamped internally and externally. The central processor is an ARM 9 chip, with 64 MB of RAM and 16 MB of Flash built in for storing programs. A SD-slot allows the memory to be expanded, and there's a better display. But the biggest innovation is that Lego made it easier for the EV3 brick to communicat...

Is this what you were looking for? 'Ed's Red' Bore Cleaner ''Ed's Red'' Bore Cleaner... Home-Mix Really Works By C.E. ''Ed'' Harris Updated & Revised 9-29-95. Four years ago I mixed my first "Ed's Red" or "ER" bore cleaner and hundreds of users have told me that they think this home-mixed cleaner is more effective than commercial products. I urge you to mix some and give it a fair trial, compared to whatever you have been using. Competitive shooters, gun clubs and police departments who use a gallon or more of rifle bore cleaner annually can save by mixing their own, and they will give up nothing in safety or effectiveness. This cleaner has an action very similar to standard military issue rifle bore cleaner, such as Mil-C-372B. Users report it is more effective than Hoppe's for removing plastic fouling in shotgun bores, or caked carbon fouling in semi-automatic rifles or pistols, or in ...

Machinist's Workshop magazine actually tested penetrants for break out torque on rusted nuts. Significant results! They are below, as forwarded by an ex-student and professional machinist, Bud Baker. Don't forget the April 2007 "Machinist's Workshop" magazine comparison test. *They arranged a subjective test of all the popular penetrants with the control being the torque required to remove the nut from a "scientifically rusted" environment. *Penetrating oil ..... Average load* None ..................... 516 pounds WD-40 .................. 238 pounds PB Blaster ............. 214 pounds Liquid Wrench ..... 127 pounds Kano Kroil ............ 106 pounds ATF-Acetone mix....53 pounds *The ATF-Acetone mix was a "home brew" mix of 50 - 50 automatic transmission fluid and acetone.* *Note the "home brew" was better than any commercial product in this one particular test. Our local machinist group mixed up a batch and we a...