Thiruvananthapuram: "Ammoomas", as Malayalis fondly call their grandmothers, rolling out 'thiries' (thread wicks) to light lamps was once a never-miss sight in Hindu homes in Kerala. Though this has ...

Before the electric light bulb ended the Gaslight Era, one of the biggest advances in illuminating Chicago and other cities was the development of a lantern wick that could withstand intense heat ...

Q. Why does the flame burn upright even when the thread associated with the lamp (Wick) is inverted? Ans. When a lamp burns, it heats up the surrounding air. Since hot air is lighter than cold air, it ...