1 Conduction is the transfer of thermal energy through direct contact between particles of a substance, without moving the particles to a new location.
iPhone (/ËaÉªfoÊn/ EYE-fohn) is a line of smartphones designed and marketed by Apple Inc. They run Apple's iOS mobile operating system. The first generation iPhone was released on June 29, 2007; the most recent iPhone model is the iPhone 7, which was unveiled at a special event on September 7, 2016. The user interface is built around the device's multi-touch screen, including a virtual keyboard.
Apple's iPhone: a definitive history in pictures. The first ever iPhone was unveiled by Steve Jobs at the Macworld Conference and Expo in San Francisco in January 2007. Its limited functionality in its early days - including not being able to connect to the internet independently of WiFi, meant it was effectively an entire computer that happened to make phone calls.