The games and information in the mobile phone are addictive, causing more and more low-headed people to watch mobile phones all the time, including walking and driving. In this regard, a city in Israel recently installed ground traffic lights at street intersections, hoping that these lights would b
As night falls, the lights are on. On the road of Zunyi People's Road in Guizhou, which has just been rebuilt and expanded, you can see that the unique street lamps are gradually lit up, and the People's Road is decorated with colorful colors against the backdrop of the midsummer sky.In most people'
Does the light source in the classroom have an impact on students' vision? It is understood that the Nanjing Municipal Primary and Secondary School Health Care Center and the Nanjing Municipal Center for Disease Control and Prevention have jointly carried out research work on the planning of the "Re
According to Taiwan media , Japanese manufacturer Zebra has launched an LED-illuminated ballpoint pen designed for people who have night-time outdoor writing needs, priced at 500 yen. In terms of appearance, this ballpoint pen is no worse than an ordinary ballpoint pen, except that an LED light