An inexpensive paper sensor along with a smartphone-based reader developed by a Washington State University-led team can rapidly provide information on a person's personal smoke exposure during ...

The first time white smoke was the indicator that a new pope was elected was in 1914. The previous pope, Pius X, had mandated in 1904 that all papers related to the election, not just the ballots ...

But what kind of smoke is it exactly? Let’s take a look at the science. The tradition of cardinals burning their ballot papers to maintain secrecy dates back to at least the 15th century.

But what kind of smoke is it exactly? Let's take a look at the science. The tradition of cardinals burning their ballot papers to maintain secrecy dates back to at least the 15th century.

Like the flickering of your favorite candle, the best incense provides visual interest through spirals of smoke while perfuming ... Burning these incense papers will instantly transport you ...