Why do some toilets flush clockwise while others flush counter-clockwise? Why do toilets have tanks when sinks and showers feed water directly from the supply line? Find out the answers to these ...

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 ...

To flush or not to flush. That was the question that designers and ecologists were asking each other this week as hundreds of people — who spend a lot of time thinking about these things — convened ...