The word emulsion comes from the Latin mulgeo, mulgere to milk, [specify] as milk is an emulsion of fat and water, along with other components. Two liquids can form different types of emulsions. As an example, oil and water can form, first, an oil-in-water emulsion, wherein the oil is the dispersed phase, and water is the dispersion medium.
Historians consider the first touch screen to be a capacitive touch screen invented by E.A. Johnson at the Royal Radar Establishment, Malvern, UK, around 1965 - 1967. The inventor published a full description of touch screen technology for air traffic control in an article published in 1968.
Multi-touch is a method of input on a touchscreen that allows two or more fingers to be used on the screen at one time.Apple's iPhone is famous for introducing multi-touch to the cell phone world by using it to allow pinching and stretching gestures on the screen to control zooming.Multi-touch is something typically associated with capacitive touchscreen displays rather than with more common resistive touchscreen displays.pple's iPhone is famous for introducing multi-touch to the cell phone world by using it to allow pinching and stretching gestures on the screen to control zooming. Multi-touch is something typically associated with capacitive touchscreen displays rather than with more common resistive touchscreen displays.