John Crimaldi is a professor of civil, environmental and architectural engineering at the University of Colorado, Boulder. Every time you flush a toilet, it releases plumes of tiny water droplets into ...

Engineers at the University of Colorado Boulder have confirmed what the germ-phobic among us have long suspected: The flush of a commercial toilet releases a Vesuvius-like cloud of tiny droplets and ...

File this one under “Studies We Wish Had Let Us Remain Ignorant.” Scientists at the University of Arizona decided to investigate whether closing the toilet lid before flushing reduces ...

Just like the great debate over which way the toilet paper roll goes, there is a similar spat over flushing: lid open or closed? Scientists have weighed in with their own woeful conclusion: Neither is ...