Small experiment in science: "The confetti dances"

Experimental Materials Paper scraps, plush fabric, plastic rod Experimental procedure 1. First touch the paper scraps with a small plastic rod, and nothing happened. 2. Rub the small plastic rod with a plush fabric for 20 seconds. 3. Use a small plastic rod rubbed by

Refuse to be a panda female with dark circles say byebye

Classification and causes of dark circles Vascular dark circles Because of staying up late, using eyes too much and fatigue, resulting in poor blood circulation around the eyes, resulting in dark circles, and because the blood circulation near the eyes communicates with the nose, the condition of

Common problems and solutions in UV glazing

UV glazing is UV glazing. It is a special coating agent for UV, which is applied to the performance or local area of ​​the printed matter precisely and evenly. It is dried and hardened at a very fast speed by ultraviolet irradiation. Generally, export products are not allowed to be c

Management, use and maintenance of optical equipment

First, the management and use of equipment The high-load use of instruments and equipment is often prone to accidental failures. In particular, if optical instruments are fogged due to improper maintenance and use, they cannot function properly and cause obstacles in their work. Therefore, effici