Curious Kids is a series for children of all ages. If you have a question you’d like an expert to answer, send it to CuriousKidsUS@theconversation.com. What is Bluetooth? – Henry, age 13, Somerville, ...

For more than a century, wireless power sounded like a party trick from the age of coils and crackling sparks. Now it is quietly turning into infrastructure, with real systems moving electricity ...

Wireless charging is becoming very common in smartphones today. Many people like it because you can just place the phone on a pad and it starts charging, no cable needed. It feels easy and modern. But ...