Today's bulbs predominantly use tungsten filaments ... of employees will work 3.5 days a week and live to 100 years old ...

Many countries have phased out incandescent bulbs because they waste energy by making heat The US is scrapping a ban on energy-inefficient light bulbs which was due to come in at the beginning of ...

Imagine a light bulb that has been burning since 1901. Nestled in a quiet Californian fire station, the Centennial Light ...