While toilet bowls are designed such that the contents are supposed to flush downward, scientists have known for decades that small particles – including those from water, waste and toilet paper – can ...

Researchers from the National Institute of Advanced Industrial Science and Technology (AIST) and others conducted an experiment to scientifically clarify precautions for toilet use and hygiene ...

Kim told Live Science that the toilet with direct discharge into the river “seems to have a hierarchical meaning,” used only by the crown prince and the court ladies closest to him.