In 19th century this was a common poster in hotels. Unused to electricity, people wondered about the safety of sleeping in an electrified room. Asking if the electricity could leak out like gas, would the room catch fire if one goes to sleep with the lights on..
Nature's firework display, this was like an explosion of nightlights.. what could be more magical for a school kid? The 'Lampyridae' are winged beetles, commonly called as fireflies or lighting bugs. Use of fireflies in transparent containers was a widespread practice in ancient India as short-term lanterns.
In the days before city lights & GPS, railroad lanterns served a very important purpose of communicating signals at night between trains and stations. It was a portable efficient light source that could be easily seen. It used to have two blue & two red lenses. The blue lens used to shine a signal green colour because of the yellow flame of the burner. These kerosene lanterns have enjoyed a long history with railways & today have become a collector's item.
Originating from the french word 'candelle' chandelier literally means 'candle holder'. In 14th century chandeliers were a simple design, two wood beams firming a cross with a spike at the end of each to hold a candle. As time changed designs became ever more elaborate, reflecting the growing wealth and power of the high society.