On 9 September, Apple introduced its newest lineup, including the iPhone 17 series. Much of the attention went to a new ultrathin model and a bright orange color option (a shade not dissimilar to that of the IEEE Spectrum logo). The new smartphones will also ship with the latest operating system and its “Liquid Glass” software design—but the liquid in these phones goes beyond software. The iPhone 17 Pro and iPhone 17 Pro Max contain thin, hermetically sealed chambers with a drop of water inside ...