That’s why hanging up a disco ball is the perfect fly repellent solution, but you could also use spinning CDs hung up over ...

Light bouncing off 50 disco balls? That’s a work of art. Or at least it is when you use multiple projectors and 3-D scanning technology to create an immersive disco ball light installation.

A disco ball is a deceptively simple thi. Here's how it works: A dense grid of 49 mirrors is placed on spinning stepping motors that are controlled by an Arduino.