How do robots learn to fix their own mistakes?
A hands-on mini-course from the engineers at Helix Labs. Six short chapters, three things to play with, zero sign-ups.
Even NASA makes mistakes. Really big ones.
In 1999, NASA sent a spacecraft called the Mars Climate Orbiter all the way to Mars. It never arrived. Here’s why.
Two engineering teams worked on the same spacecraft. One team measured pushes in metric units. The other used English units. Nobody noticed the mismatch — so every tiny course correction was a little bit wrong. After 400 million miles of tiny wrongs, the spacecraft flew too close to Mars and was lost.
Two teams used two different measuring systems for the same job — like one friend counting in inches while the other counts in centimeters.
A spacecraft worth hundreds of millions of dollars, and years of work by very smart people — gone in one morning.
They didn’t hide it. They studied exactly what went wrong, wrote the lesson down, and changed how every future mission double-checks units.
The four-step loop every good problem-solver uses
Engineers at Helix teach software this exact loop. It works for robots, for astronauts — and for homework.
Try
Have a go. You can’t learn anything by standing still.
Notice
Did it work? If not — great, you just found a clue.
Fix
Ask why it went wrong, then try a smarter way.
Remember
Write the fix down, so the mistake never wins twice.
Fix once. Never fooled twice.
Teach Hexa the robot to fix itself
Hexa is stuck. Use the loop from Chapter 2 to help — and watch what happens the next day.
Hexa’s morning job
INTERACTIVE · NO SIGN-UP- Empty so far — help Hexa learn something!
What if robots could share one memory book?
Here’s the part that makes engineers’ eyes light up. Watch what happens when one robot’s lesson spreads to the whole team.
The immunity wave
PRESS PLAY · WATCH THE WAVE24 robots, one team. Tomorrow morning, one of them is going to hit the empty-can problem…
Think like a repair engineer
Four tricky situations. Pick the smartest next step. Nothing is recorded — this is just between you and Hexa.
The repair engineer quiz
4 QUESTIONS · NO SCORES SAVEDYou already own the world’s best self-repair system
Engineers didn’t invent self-repair. Your body has been doing it since before you could walk.
- You fall off your bike and scrape your knee. (try → notice)
- Your body rushes helpers to the scrape and builds a scab. (fix)
- Your immune system files away what the germs looked like. (remember)
- Next time those germs show up, your body beats them before you even feel sick.
- A software helper tries a job and it fails. (try → notice)
- It figures out why, and tries a smarter way that works. (fix)
- It writes the fix into a shared memory book. (remember)
- Every other helper reads the book — so none of them ever trips on that problem again.
Talk like an engineer
Tap a word to reveal what it means. Use one at dinner tonight.
Ready to write real code?
Build a program block by block — and teach it to repair itself.
Open the Code Lab →For parents & teachers
Helix Kids Lab is a free STEM outreach program from Helix Labs. Download the classroom activity kit — a 45-minute unplugged lesson (no computers needed) with cut-out cards, a foldable memory book, and a class poster. We also run free workshops at libraries and code clubs.
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