A food-safe gelatin microneedle sensor pierces sealed packaging and changes color as food spoils, offering consumers a real-time alternative to static expiry dates. (Nanowerk Spotlight) Open a package ...

The secret to safer self-driving cars might be this tiny radar device. The post This low-cost orange-sized sensor could be what self-driving cars need to hit public roads appeared first on Digital ...

The bright colors of the sponges have a meaning tied to their intended use. Here's a guide to sponge colors and when to use each type. David lives in Brooklyn where he's spent more than a decade ...

Your saliva is "like a microbial fingerprint," says Purnima Kumar, a spokesperson for the American Dental Association. But it also changes if you take a sip of water or coffee. (dusanpetkovic | Getty ...

In medicine, security, nuclear safety and scientific research, X-rays are essential tools for seeing what remains hidden. The materials used to create X-ray detectors can be rigid, expensive and ...