Poison-Sensitive Chopsticks

James Turrell's light prints, a $1 microscope, contamination-detecting chopsticks and more in our weekly look at the web

Anyone who has ever suffered from food poisoning can attest to the value of smart chopsticks—a new development from a Chinese tech firm Baidu. Sensors in the chopsticks pick up certain chemical combinations in food, and trigger an indicator LED. Blue means safe, red means beware. As a final perk, the chopsticks also connect to smartphones for a full breakdown on why an alert was issued. No price has been announced yet, but there’s no denying, these sound pretty handy.