A hypno wheel, also called as hypno disc or hypnosis spiral, is a spinning spiral wheel popular in the 20 th century. It was used to ‘hypnotise’ patients. You can use a replica of the same wheel to ...

A mysterious spiral of doom — okay, just a spiral-shaped galaxy — has been captured in a new image by the Hubble Space Telescope. The object belongs to an uncommon class of galaxy called ...

About half of all spiral galaxies appear to be rotating clockwise ... As an analogy, consider a spinning bicycle wheel. When you look at a spinning wheel from one side, it looks like it’s ...