There are two different ways to attack a dye, chemically, to remove its color. One is by oxidation, in which electrons are removed, while the other is by reduction, in which electrons are added. Please note that household bleach is a toxic chemical.

SkinTrack, a research project from Carnegie Mellon University, lets you use your arm as a touch pad for a smart watch. Wearable gadgets like …

If the global coronavirus pandemic has exposed humanity’s vulnerability, it has also highlighted its resilience. Forced to adapt to a world in which most physical interaction is impossible or largely limited, much of society has been pushed to rely on virtual engagement.

Computers are becoming rather versatile copycats, thanks to deep-learning algorithms.