Pyramid template

Print at 100% scale (turn off "fit to page"). Trace each shape 4 times onto clear plastic (a CD case, a clear folder or an overhead sheet), cut them out and tape the long edges together. The small end sits on the + mark in Airpane.

60 mm 10 mm 35 mm tall
Phone: 6 cm base, 1 cm top, 3.5 cm tall. Cut 4.
120 mm 20 mm 70 mm tall
Tablet or laptop lying flat: 12 cm base, 2 cm top, 7 cm tall. Cut 4.
  1. Set screen brightness to maximum and dim the room.
  2. Open Airpane, choose Floating pyramid, open a site and lay the device flat.
  3. Stand the pyramid upside down with its small end on the + mark.
  4. Look at a side of the pyramid at the height of the screen. Use the + and - buttons if the picture is bigger or smaller than your pyramid.

Tip: "Glow" (on by default) turns white pages dark, which makes the floating picture much clearer.