Nov 7 2014

It may look like some very heavy pharmacy branding, but this in fact a piece of silicon, etched to create tiny crosses just 100 microns in size. The resulting surface can absorb virtually all the terahertz radiation you throw at it. [Advanced Optical Materials]

Jan 6 2014

Nvidia took to the fields to help publicize its new Tegra K1 chip, its first with a staggering 192 CUDA cores. The result is this deliciously geeky crop circle, cut into a field two hours south of San Francisco. [Nvidia]