Nonspecific fever. Kids infected with coxsackievirus usually establish an unexpected fever that lasts about 3 days. Often the fever comes in two waves â it is there for a day or two, disappears for a couple of days, then returns for about 3 days.
Albert Einstein proposed the idea the light exists of quanta of energy that he called photons.
exists and is an alternate of . A photon is the unit in which light comes. A bundle of them is a ray of light. Light sources like a light bulb emit astronomical numbers of them every second they are on. Please keep an open mind when dealing with light.