Researchers at TU Wien in Vienna have created a QR code so small it can only be read with an electron microscope. The code measures roughly 1.98 square micrometers, with individual pixels about 49 ...

A QR Code scan is like a raised hand in a crowded room. It's voluntary, visible, and tells you exactly who's interested. Compare that to website cookies, which are more like secretly following someone ...

Much has been written about the need to reduce greenhouse gas emissions from data centers. Current estimates place data centers at consuming nearly 3% of the world’s total electricity – on par with ...