One theory attributes the moon illusion to how the brain deals with the apparent size of distant objects.
Other theories attribute the horse to Henry the Lion.
The theory attributed mass unemployment to high and rigid real wages.
One theory attributes it to a great flood of 1341 that caused the change of the Periyar river.
An alternative theory attributes the first city wall to the Yellow Emperor.
"One theory attributes the detections to an offensive chemical attack," it said.
Proposed by Bazant and Oh in 1983, this theory can well attribute materials whose homogeneous nature changes over a certain range randomly.
Another theory attributes it to inoculation through mosquito bites.
These theories attribute the source of the ambiguity aversion to the participant's pre-existing knowledge.
Another theory attributed his elusiveness to a hide-out on Long Island.