Bevel gears can be made with straight teeth, analogous to spur gears, and with the same disadvantage of sudden full contact that is noisy. Spiral teeth are analogous to helical teeth on cylindrical ...
Let us know if you try! Helical antennas aren’t new, but this is an unusual construction. They are popular as satellite antennas because of their polarization characteristics among other things.
That time of year is almost here: the time to start pondering what to buy your loved ones for Christmas. As the years go by, ideas can run thin, and finding that perfect gift can be a challenge ...