Question

Give the scientific logic behind the trick of flickering one’s finger across a candle flame

Answer 1

Answer:

When a candle burns, it creates a teardrop-shaped flame that is fed by the circulation of oxygen and wax. ... But if the flame gets either too much or too little air or wax, it can flicker or flare-up. This can also happen if the wick is too long, as the wax has to travel a length that affects the stability of the flame.

Answer 2

Explanation:

When a candle burns, it creates a teardrop-shaped flame that is fed by the circulation of oxygen and wax. ... But if the flame gets either too much or too little air or wax, it can flicker or flare-up. This can also happen if the wick is too long, as the wax has to travel a length that affects the stability of the flame.