butane fuel

How is it that refill canisters for air horns costs four times as much as butane canisters? Ariel was not happy with the added expense and took matters into his own hands creating a butane horn with flames. While this is not his first butane hack, he has stepped into a larger world of noisy flame throwers. And if you think this duct-taped flaming air horn is a little shady, check out some of my other favorite flaming noise projects.

By this spring, drivers in the U.K. will encounter an unfamiliar, and unprecedented, option at the pump: gasoline blended with a corn-based alcohol called butanol. It's part of a pilot project run by energy company BP, which aims to gauge public reaction to the new fuel. Butanol is easier to store and transport than existing biofuels and has an energy content more comparable to that of gasoline. Now, with more efficient ways to make it on the horizon, an increasing number of experts think butanol is poised to overtake ethanol as the best-selling alternative fuel on the market.

Let's face ituntil they're cooking us breakfast and doing our laundry, the most fun you can have with store-bought robots is the fun you make yourself. Sure, robots like WowWee's Roboraptor (and its companions, Robopet and Robosapien) are surprisingly capable for $60-to-$200 toys, with wide ranges of motion, touch sensors and powerful software. But it's those same out-of-the-box skills that make the 'bots such prime fodder for hackers.