This video shows how to build a toy cannon using readily available materials. The process involves soldering, cutting, gluing, and drilling, culminating in a functional cannon that can be loaded and fired. The video emphasizes safety precautions, reminding viewers to always work with adult supervision.
11258950 7 лет назад 4:03This video demonstrates how to build a device using computer coolers and magnets to increase the heat output of a battery. The creator explains how to connect the coolers, attach magnets, and wire the device to a power source. The video visually shows how the device works by drawing in air from below the battery and pushing heated air out the top.
4620136 6 лет назад 2:37This video demonstrates how to build a flying rocket using simple materials like saltpeter, sugar, and coal. The process involves mixing the ingredients, creating a rocket hull, and filling it with fuel. The video also provides instructions for making a wick and stabilizing the rocket.
7561930 8 лет назад 2:42