Chewing gum can shed microplastics into saliva, research finds
According to a new pilot study that found chewing just one piece can release hundreds to thousands of microplastics into ...
Sewage sludge can find a second life on farm fields. Here’s how it’s made
What goes down your toilet and drain can end up on farm fields across the United States. Biosolids, or sewage sludge, are the ...
WCVB Channel 5 Boston5 天
Chewing gum can shed microplastics into saliva, research finds
One human participant would chew a gum for four minutes; during that time frame, every 30 seconds a researcher collected the secreted saliva in a centrifuge ... thickness of paper, or the diameter ...
ABC News5 天
Sewage sludge can find a second life on farm fields. Here's how it's made
At a facility just outside Columbus, Ohio, a machine screens out large debris such as toilet paper and trash ... the process are put through thickening centrifuges, then go into these tanks ...
How-To Geek on MSN3 天
5 Great Movies That Actually Portray Space Accurately
Throughout Hollywood history, space has often been depicted with baffling inaccuracies. It takes dedication and knowledge to ensure a movie correctly portrays space and space travel, and here are a ...
The New York Times3 天
The Learning Network
Advice from an English teacher in Massachusetts for guiding teenagers to think critically but not cynically about the information they consume. By David Nurenberg This collection of interactive ...