A fire department taught residents how to use fire extinguishers during a hands-on training session

A new study showed teen social media use decreased by 8% in the past year with more time spent on outdoor activitiesA multinational company said it will relocate its headquarters to a smaller city to cut costs and support local economies

Health experts released new guidelines recommending adults get at least seven hours of sleep nightly for optimal healthA local community center opened its doors to homeless individuals offering shelter food and job trainingResearchers announced a battery technology breakthrough with a new design that charges electric vehicles in 15 minutes

The national parliament passed a new law to protect endangered species imposing stricter penalties on illegal huntingA popular restaurant chain said it will expand to 50 new locations nationwide by the end of 2024

Archaeologists discovered an ancient temple in a remote area dating back over 2000 years

Weather forecasters predicted above-average summer temperatures raising heatwave concernsEngineers designed a new type of window that keeps homes warm in winter and cool in summer

The postal service introduced a next-day delivery service for packages sent within the same stateA celebrity chef cooked a special meal for a charity event that raised $120000 for hunger relief

Researchers calculated that using public transit instead of driving reduces carbon emissions by 45%A city started a composting program for restaurants to turn food waste into fertilizer

(责任编辑：Tech How-Tos)