Mini Challenges!
New inventive challenges posted each week
138
The sun collector
Invent a way to charge a device using energy from the sun
Check out some other challenges
Prev
Next
433
Asteroid rubble
Make something out of asteroid rubble
28
Flight of the bumblebee
Design flying machines inspired by birds and insects
308
Calm and still
Invent something you can use when you need a moment of calm
548
Lucky
Invent a way to turn your luck around
549
Heat
Invent a device that generates heat