The engine roars to life and the blades start spinning. Then, all of a sudden, thick white smoke starts billowing out of the mower. Quality gas-powered lawnmowers aren't cheap machines and it can ...

Whilst drivers are more likely to notice smoke coming from the exhaust when they start their car in cold weather, the AA warned that white smoke could be a sign that there is a serious fault with ...

And either white or black smoke signals from the Sistine Chapel are used to signify different stages in this super-secret election process. Article continues below But what does each colour of the ...

A plane issued an emergency alert as crews reported a "mechanical failure" before landing in a cloud of white smoke. Flight ...