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more about #biodiesel more comments → Gilbert Tang Jr.: SBUX used to give its used grounds to people for their gardens, but now they stopped doing it. I'm sure some lawyer worried about someone getting coff... more » badhatharry: This is pretty awesome. Why pay Starbucks to burn my coffee when I can do it for free? more » OMG! Ponies!: Iii thththiiiinkk a cccarrrar ppppowwerrred bbbyy cooofffeee wwwould be ggggreattt. Iiiii drinkkkk lottttsss ofofofof cococoffeeee. Sssomme ppppeeopp... more » Curves: I have always called Decaf "Unleaded" anyway. Now it really is. more » Man In Gauze is an obscure reference to Courage the Cowardly Dog.: Well someone needs to find whatever the best biofuel is, all things considered and start developing a way to actually use it rather than just hypothes... more » rocketbear79: threadkiller: While this sounds like a good idea, I don't think I want a bunch of lack rimmed glasses wearing, macbook and ipod toting hipsters gravitating towards ... more » johnnyabnormal: F*ck this. We all know the real solution to all of these problems is getting people to wear condoms and stop breeding so much. more » okenny :) ...building bridges (to hide under): OK... so which forest is going to be destroyed to make this in mass quantity?? :3 In all seriousness scientist guys, be careful what you snip together... more » Kaiser-Machead: Shroom power ftw. Excellent! more » -
#coffee
Coffee-Fueled Car Is Surprisingly Practical
Turns out you can make biofuel from just about any oily plant product. Corn may be the standard, but coffee works at least as well, and it makes your car smell like a Starbucks! More » -
#greenplanes
Greener Skies: Quiet, Fuel-Efficient Airplanes Race in NASA Challenge
This past weekend, a NASA-sanctioned 400-mile "personal air vehicle" race was held in Santa Rosa, CA, to see who had created the quietest, most fuel-efficient plane that's still reasonably fast. Those involved hope pushing these ideas forward will make personal airplanes cost effective someday. These PAVs run as quiet as a pickup truck while averaging a fuel efficiency of 25 to 30 miles per gallon. Four planes showed up for the challenge and $100,000 in prize money was awarded, though the most intriguing craft of them all, a modded DA-20 that runs partially on biodiesel, was unable to compete because of a faulty sensor. In the end, the big winner was the Pipistrel Virus, a two-seater with tech-happy features such as three GPS modules, terrain visualization screen and a rocket-propelled parachute that deploys in the event of a mid-air collision. Here's a look at all four contenders: More »
