[shazow]

"They are actually being held open 7mm by a custom 3D printed wedge. This opening allows for the screen to be used for testing as well as ample air circulation. You can’t see the temperature sensors tucked into each notebook’s keyboard area."

Air circulation makes sense. There is a vent in between the screen pivot and the base, and also the gaps in the keys allow for some heat to escape.

Agreed that the screens should be turned off, though. Could just turn the brightness down to 0.

[Artemis2]

What's brilliant is that when the screen is closed, the same vent opens on the back of the computer. That's extremely elegant.