Fluorescent lightbulbs are energy-efficient and eco-friendly alternatives to traditional incandescent bulbs. They produce light by passing electricity through a gas-filled tube, which causes a chemical reaction that emits visible light.
He uses compact fluorescent lightbulbs in many of his lamps at home but emphasizes, «It's not to save the world. (outsideonline.com)
For example, europium allows your television to display vibrant reds; neodymium is a key ingredient in the magnets used in hybrid - vehicle motors; and yttrium is in fluorescent lightbulbs. (discovermagazine.com)
Compact fluorescent lightbulbs contain a minuscule amount of mercury, and you can't safely ignore potential contact with it (scientificamerican.com)