The explanation for this is so simple and yet watching it feels so bizarre. Simple physics is often far more interesting than we give it credit for. A lot of magic is just physics done with a dramatic flair. So it is with this chair trick that anyone, even you, can perform at home with your friends. It needs five people to do it, unless you’ve got very flexible arms to pull the chairs out from under you. But as you can see in this video, it’s totally worth it.
If you do attempt this awesome trick, just remember one more law of physics... the bigger they are, the harder they fall. Kids will have a far easier time with this trick than full grown adults, and if it fails ... well, you know.