Legacy. Hermann Ebbinghausâ lasting contributions to the field of psychology are multiple. In addition to being the first psychologist to study areas of human learning and memory, Ebbinghaus contributed greatly to the establishment of experimental psychology.
This includes dimming the display slightly, stopping Mail push and fetch, turning off background app refresh, turning off Hey Siri, and a few other iOS features. By turning these features off, the battery life of the iPhone is extended dramatically, and when Low Power Mode is enabled the iPhone battery icon is yellow to demonstrate this.
Why some iMessage texts are blue and some are green. And why you may prefer to stick with one color or the other. If you own an iPhone, you may have noticed something odd in the Messages app: some messages are blue and some are green. What's the deal with that? Short answer: blue ones have been sent or received using Apple's iMessage technology, while green ones are traditional text messages exchanged via Short Messaging Service, or SMS.