Can you solve the time travel riddle? - Dan Finkel
- 2,992,872 Views
- 2,481 Questions Answered
- TEDEd Animation
Let’s Begin…
Your professor has accidentally stepped through a time portal in his physics lab. You’ve got just a minute to jump through before it closes and leaves him stranded in history. Your only way back is to grab enough colored nodules to create a new portal to open a doorway through time. Can you take the right amount of nodules to get back to the present before the portal closes? Dan Finkel shows how.
Create and share a new lesson based on this one.
Additional Resources for you to Explore
What if you wanted to activate enough chrono-nodules to open two doorways through time? What’s the minimum number of chrono-nodules you would need to be sure you could do it? (Assume nodules cannot be used simultaneously in two different portals.)

TED-Ed
Lesson Creator
New York, NY
Create and share a new lesson based on this one.
More from Math In Real Life
33,618,157 views
Mathematics
The paradox at the heart of mathematics: Gödel's Incompleteness Theorem
lesson duration 05:20
3,063,747 views
4,444,599 views
2,136,830 views