In Donald Trump’s imaginary world, Americans can’t venture out to buy a loaf of bread without getting shot, mugged or raped. Immigrants in a small Ohio town eat their neighbors’ cats and dogs.

Dr Mary O’Kane reveals what to do if your child introduces an imaginary friend to the family Imaginary friends are normally a sign your child has an advanced understanding of social relationships.

In the foreword to this intriguing Michelin of the Mind, the authors claim that "the imaginary universe is a place of astonishing richness and diversity." They make the case in more than 1,200 ...

Nonlinear phenomena are phenomena, which, in contrast to a linear system, cannot be explained by a mathematical relationship of proportionality (that is, a linear relationship between two variables).