Invention on Instagram: "Countersinking screws is a method used to create a small conical recess so the screw head can sit level with or below the surface of the material. This technique is common in woodworking, metalworking, and construction because it improves both the look and the function of the final product. When done properly, it prevents sharp or uneven screw heads from sticking out and catching on other materials or surfaces. It also helps with strength and precision. When a screw head

A volcano on Japan's major western island of Kyushu erupted multiple times on Sunday, November 16, sending a plume of smoke and ash as high as 4.4 kilometers (2.73 miles) into the air and causing dozens of flight cancellations. The volcano, which is called Sakurajima and is located on the southern tip of Kyushu near the city of Kagoshima, erupted at about 1 a.m. (1600 GMT on Saturday), the Japanese Meteorological Agency (JMA) said. There were two more eruptions at about 2:30 a.m. and 8:50 a.m. I