Completed project · December 2025 · 2025

Team Still Water with their trophy and Bucket Brigade device at JPL.
Team Still Water at the December 2025 JPL Invention Challenge. Photo: NASA/JPL-Caltech.

The challenge

This year, the JPL Invention Challenge was to move 8 liters of water from a reservoir into a bucket 16 feet away as fast as possible while satisfying many rules, such as no pumps allowed or no more than 2 liters of water can be travelling upwards at a single time.

Our approach

Its design featured an Archimedes screw.

Documented results

  • At JPL, Still Water was able to achieve 1st place, moving the 8 liters in just 6.45 seconds.
  • 2 out of our 3 Team 867 groups qualified for the Finals.
From the team’s project and season archive.