Today on Engineering Newswire, we're fixing the government with sixth grade math, printing invisibility cloaks, and racing the world's fastest RC Car. This week's episode features:

6th grade math could save government $400M
With an interest in applying computer science to promote environmental sustainability, Suvir Mirchandani, a sixth grader, won his school science fair when he showed how changing fonts could save his school nearly 21 grand annually. Now, he's set his sights on saving the government some cash as well.

World's fastest RC bullet car
Nic Case entered the RC world after a motorcycle crash left him searching for a thrilling but safer hobby. He built the Bullet from the ground up, with a body that was designed in a wind tunnel to have high down force and low drag.

Invisibility cloaks, stealth technology
While Hollywood movies make it seem easy, controlling and bending light around an object to make it invisible to the naked eye is actually quite difficult. Artificial nanostructures called metamaterials have been created to help get us closer, but the challenge has been making enough of the material.