SCI-TECH & AGRI

This week's questions

Why does the flame of the candle not flow downwards when the candle is inverted?

Vinoth Mohan, Chennai

Why is it difficult to balance a stationary cycle while one can balance it while riding it?

G.Trivikram, Cuddapah, A.P

Why does gold not corrode like other metals?

Diana JamesPaul, Kerala