A filter made from polymer nanothreads blew three kinds of commercial masks out of the water by capturing 99.9 percent of coronavirus aerosols in an experiment. The study compared the effectiveness of ...
In this experiment, we're going to find out how quickly water drains through three different types of soil: one heavy with sand, a potting soil, and soil heavy with clay. We're joined by BASF employee ...
Some results have been hidden because they may be inaccessible to you
Show inaccessible results
Feedback