A Spirals-Twisting, Spirals–Wearing Tube Is Actually A Spinning Welding Tube
In the early 20th century, a few scientists experimented with spiralling tubes, the process of spinning an object in the air to produce a spinning motion.The spirals in these tubes would spin at a rate of about 1,000 times a second.As you might imagine, this was a lot of spinning, and some tubes had spirals […]
