Rational Method is a rather conservative method. One of the basic assumptions of the rational formula is that the rainfall intensity must be constant for an interval at least equal to the time of concentration. For long duration of rainfall, this assumption may not hold true.
The puzzle piece was first associated with Autism Awareness when it was used within the logo for National Autistic Society in the UK in 1963. The logo of the society was designed by a neurotypical parent of an Autistic child who was a member of th...
Relevance to autism: Theory of mind is impaired in people with autism. One of the earliest tests for theory of mind is the false-belief test developed by Simon Baron-Cohen and Uta Frith. In the classic version of the test, a little girl named Sally puts a ball into a basket and goes out for a walk.