On the bench · not built yet

Cooler Challenge

Design a lunchbox cooler from insulation materials; test which keeps ice longest.

Nearby on the shelf

Orbit the Moon around Earth and watch phases and eclipses from both a space and a backyard view.

Place planets and moons and set their speed; gravity decides whether you get stable orbits or chaos.

Squash 4.6 billion years into one calendar year; humans show up at 11:59 pm on December 31.