Wearable computerA wearable computer, also known as a body-borne computer, is a computing device worn on the body. The definition of 'wearable computer' may be narrow or broad, extending to smartphones or even ordinary wristwatches. Wearables may be for general use, in which case they are just a particularly small example of mobile computing. Alternatively, they may be for specialized purposes such as fitness trackers. They may incorporate special sensors such as accelerometers, heart rate monitors, or on the more advanced side, electrocardiogram (ECG) and blood oxygen saturation (SpO2) monitors.
Visiocasquethumb|Le casque de réalité virtuelle Oculus Rift. Un visiocasque est un dispositif d'affichage, porté sur la tête ou dans un casque, qui a un petit écran d'affichage en face d'un œil (visiocasque monoculaire) ou de chaque œil (visiocasque binoculaire). Le visiocasque est parfois appelé casque de visualisation, casque immersif, casque-écran ou casque HMD (où HMD signifie head-mounted display), voire simplement .
Effect of Sun angle on climateThe amount of heat energy received at any location on the globe is a direct effect of Sun angle on climate, as the angle at which sunlight strikes Earth varies by location, time of day, and season due to Earth's orbit around the Sun and Earth's rotation around its tilted axis. Seasonal change in the angle of sunlight, caused by the tilt of Earth's axis, is the basic mechanism that results in warmer weather in summer than in winter. Change in day length is another factor.
