“We found that when a liquid jet or droplet train impacts a rigid surface below a certain critical impinging angle, almost no ...

This high level of spillage of urine requires frequent cleaning, which uses a large volume of water, is unpleasant work for custodial staff and is very expensive. Some bathrooms attempt to reduce ...

Urinals, first invented nearly 200 years ago ... the condom catheters came in three sizes: small, medium and large. Despite the practical advantages of having the right size, the astronauts ...