If you’re not using your bike’s rear drilled brake bridge, you could try BillieGene’s Instructable for a recycled rear mudguard. It mounts to the brake bridge to keep your fixie from flinging mud up your back, which is a must for early springtime biking.
This project combines two of my favorite things: crayons and rockets. It may have taken John Coker 12 years to complete this project (hey, who among us hasn’t had a case of lingering works-in-progress?) but the result was more than worth it. He’s even included a step-by-step of how he made the rockets. The detail in matching the Crayola design is pretty impressive. I just want to know if he could find a way to add in that awesome Crayola smell.
Our buddy Fra Fondi, of Hobby Media/Xtreme RC Cars, was at the Nuremberg Toy Fair last week. He sent us email with some of the things he was most excited about, including this Grossi 2-stroke, 3.5cc R/C car engine that’s water-cooled! Looks amazing. Grossi’s 1/8 Rally Buggy Racer, using this new engine, will be available […]
Nine enterprising seniors in Yale’s Mechanical Engineering program built this rad spokeless bicycle for their mechanical design class.
Yes, this is a missile. Sorry about that. But it turns out the AIM-9 Sidewinder is the only well-documented example I can find, on the web, of a machine that employs these interesting little widgets called “rollerons.” See the little metal pinwheels at the trailing corners of the fins? The rolleron is basically an air-driven gyroscope, as Tom Harris explains over on How Stuff Works:
We’ve covered George Katz and his water rocket projects here in the past. In this recent video, he shows testing of a lightweight in-line parachute deployment rig, as well as some additional footage of the group’s most recent launch day. In-line Deployment Mechanism More: Awesome DIY water rockets with drop-away boosters In the Maker Shed: […]
Insructables user murphtron writes: My son started riding a 16″ bike at 4 years old without training wheels. (He was first on a push bike without training wheels or pedals at about 3 1/2.) One day he decided to build a jump in the back yard. So he found a piece of 2 x 12 […]
