This means that the pigment absorbs orange light, and emits reddish light. It absorbs moisture and swells on contact with water. Soon after, the Absorbing Man absorbs Ultron. The bulb absorbs sunlight which allows it grow. Piperazine readily absorbs water and carbon dioxide from the air. Water vapor specifically absorbs and re-radiates radiation in this spectral band. However, paper absorbs moisture, and has been largely replaced by plastic film capacitors. Ethanol is hygroscopic, meaning it absorbs water vapor directly from the atmosphere. When applied, the chemical readily absorbs through the skin into the bloodstream. Oxygen gas is fed through the cathode, where it absorbs electrons to create oxygen ions. Melanin readily absorbs UV wavelength light, acting as a photoprotectant. So they learned to consume charcoal, which absorbs the cyanide and relieves indigestion. PET is hygroscopic, meaning that it absorbs water from its surroundings. Through the mycelium, a fungus absorbs nutrients from its environment. The dust absorbs all impinging photons and reradiates them at longer wavelengths.