Light-emitting diodes (LEDs) are so ubiquitous that it's easy to forget just how much society relies on these underappreciated technological wonders. Yet, the history of the LED goes back further than ...

Blue tea — also known as butterfly pea or blue pea tea — is an herbal infusion native to South Asia. It’s made by brewing the dry petals of Clitoria ternatea L., a plant known for its characteristic ...

Blue-light-filtering glasses have become an increasingly popular solution for shielding our eyes from electronic screens’ near-inescapable glow—light that is commonly associated with eyestrain and ...