As radiation strikes the meter the foil leaves lose their charge and start to droop.

At that precise moment the solar radiation from the flares filtered through the clouds of vaporized water and struck the ground.

During winter in the Northern Hemisphere, the North Pole is tilted away from the Sun; solar radiation strikes more obliquely, thus with weaker heat.

Infrared radiation with wavelengths between 7.5-14 μm strikes the detector material, heating it, and thus changing its electrical resistance.

When the radiation strikes a fluorescent material, it gives off light.

Though a darkened pane might bring the brightness down to something endurable, other radiation would strike through.

Infrared radiation from a specific range of wavelengths strikes the vanadium oxide and changes its electrical resistance.

When light (or other electromagnetic radiation) strikes a FLAT surface it can do one or more of several things: 1.

When thermal radiation strikes an object, part will be reflected, part transmitted, and the rest absorbed.

When ionizing radiation strikes a semiconductor, it may excite an electron out of its energy level and consequently leave a hole.