Ken Block racing Rob Dyrdek is special enough, but Gymkhana 2.1 is a must-watch with a Subaru WRX STI taking on a replica miniature shifter car; even better: synchronized drifting.
To prove how fast and durable the Kennametal HPR drill bit is, the guys from Titans of CNC: Academy programmed one of their machines to drill a perfect grid of 672 holes in a block of cast iron. The tool moves at an impressive 103 inches-per-minute, drilling 1.85″ deep holes over and over again without wearing down.
The UN Environment Programme introduces us to Nzambi Matee, a materials engineer based in Kenya, whose business Gjenge Makers creates low-cost construction materials. By heating and compressing waste plastic and sand, they form durable blocks which weigh half that of traditional clay bricks.
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