this is known as baseload cycling and its cost ranges from $ 2 to $ 23 per megawatt hour this also reduces the environmental friendliness of wind power because a coal fired or natural gas power plant must be kept online in case there s no wind two plants are running to do the job of one
Accelerometer in an iPhone. Definition: An accelerometer is a sensor which measures the tilting motion and orientation of a mobile phone. The Apple iPhone was the first popular mobile phone to make the accelerometer a key feature of its user interface. The accelerometer is used to ensure photographs are presented in the correct way - portrait or landscape - depending on the way the phone is held. Accelerometers are also increasingly used as a means of user input, most noticeably in games where tilting and rotating the handset can control onscreen action.
Find out in our essential guide to NFC, and how to use NFC on your smartphone to do useful things. We explain Near Field Communications technology. NFC-aka Near Field Communications-is a feature of many portable devices these days.o when you pop your smartphone into a Google Cardboard VR headset, it is the NFC chip that tells the headset to wake up. Staying in the future other potential uses for NFC include the ability to control devices around your home.