This video explores the history and properties of copper, the first metal mastered by humans. The video discusses how copper was obtained from malachite ore and its chemical properties, including its reactions with acids and bases. It also demonstrates how copper compounds can be used in analytical chemistry to detect the presence of glucose and polyhydric alcohols.
200554 7 лет назад 7:41This video follows the process of creating a small, solid copper hammer. The creator starts by designing and 3D printing a pattern, then uses it to create a sand mold. They melt copper with a small amount of tin added for strength, pour it into the mold, and then clean up the finished product. The video highlights the process and the unique features of the hammer.
131820 1 год назад 8:07The video explores the phenomenon of a magnet slowing down as it falls through a copper tube, demonstrating Lenz's law. The creator then casts a silver tube to see if it slows the magnet down even more. The process of casting the tubes is detailed, and the results of the experiment are teased, leaving the viewer to wonder if the silver tube will outperform the copper tube.
973439 9 месяцев назад 11:21