A new international poster for Thunderbolts* has been released, giving us another look at the movie's team of mismatched antiheroes getting along like a house on fire. The one-sheet also reveals ...

\(power \ of \ a \ lens \ (D) = \frac{1}{focal \ length \ (m)}\) A lens has a power of -3.33 dioptres. Calculate the focal length and state what type of lens it is.

and advertisements for adult entertainment establishments and pictures drawn by children were posted on campaign poster boards. The latest revision of the law was designed with this problem in mind.