I built this laptop stand for the exercise bike in 2011 when we had a campaign at work where you got points for exercising. You could win an iPad. Since it was getting wintery, I wanted to be able to exercise indoors. I had noticed that many of the podcasts and youtube videos I was listening to during my outdoor mountain biking needed that you focused on the screen in order to see what algorithm was being walked though etc.
So in my mind, while biking, I started to think how one could bike and safely look at a screen at the same time. That is how the idea for this laptop stand came to me. You do not need to attach it with anything, gravity holds it in place. It has been on the exercise bike since, and I have learned a great deal. (and my thighs have gotten thick 🙂 )