Engineers designed a new type of solar panel that works on cloudy days

The city council banned the use of single-use plastic utensils in all restaurantsA popular streaming service added a new category of documentaries about science and technology

Researchers found that regular strength training reduces the risk of falls in the elderlyThe government launched a campaign to promote eco-tourism in national parksA tech startup developed a new device that monitors the quality of drinking water at home

Doctors created a new surgical procedure that allows patients to recover from knee surgery fasterThe local museum hosted a "night at the museum" event with special tours and activities

A new study showed that spending time with grandchildren reduces depression in grandparents

The national park service announced plans to build new campgrounds in a popular national parkThe airport announced it will expand its terminal to accommodate more passengers

Volunteers organized a clean-up activity to remove garbage from the local riverA popular music festival revealed its lineup including many world-famous singers

Teachers are receiving training to use new teaching methods in the classroomThe stock market experienced a slight rise after the release of positive economic data

(责任编辑：张家辉)