Build your own hologram projector

If you would like to build a simple mini projector for your smartphone or tablet, you just need the following:

  1. Scissors, marker, ruler and transparent tape
  2. These instructions

  3. Now choose a hologram video, place the completed foil pyramid in the center of your smartphone or tablet - and get your piece of the Universe in 3D!

Hint: You’ll get the best hologram if you do this experiment in a dark room, set the smartphone to maximum brightness and hold it slightly above eye level.