The Flow of Power
Like Duolingo, but for The Flow of Power. Tomo turns the whole topic into a game you play five minutes a day, until it actually sticks.
For the part of you with thirty open tabs that never became anything.
A short one: 12 levels across 2 sections, about 24 minutes end to end, roughly 5 days at five minutes a day. It moves through Making the Connection and Thinking Like a Builder. It starts from scratch.
Free forever · No credit card · iPhone & Android

Key ideas in The Flow of Power
- Electricity must return to its source to flow
- The load is the part that does the actual work
- An open circuit prevents any work from being done
- The load consumes electrical energy to create light, heat, or motion
- The negative terminal is the necessary destination for the loop
- Wires and batteries are the path and source, not the load
- The necessity of a closed path for electrical work
- Identifying the role of the load in a circuit
- Voltage is the potential energy or pressure
- Current is the physical flow of charge
- Electricity takes the path of least resistance
- Without a load to use the energy, the circuit generates dangerous heat
- Short circuits can drain batteries instantly or cause damage
- Recognizing the danger and cause of a short circuit
- Higher voltage can push more current through the same path
- Distinguishing between voltage and current
You've tried the other tabs
Thirty open tabs. Four facts you actually kept.
You watched. You nodded. By Sunday it was gone.
One answer, then back to scrolling.
Eight weeks. You meant to finish. You didn't.
Tomo gives The Flow of Power the Duolingo treatment: levels, streaks, and quick quizzes that test what you just learned. That game loop is what the tabs above never had, so it's the one you actually finish.
Here's what playing it feels like
A real question from this course. Take your best guess.
If you are building a circuit to light up a small lamp, which part is considered the 'load'?
Get it right to open this lesson and 11 more in the app.
Where The Flow of Power takes you
Stop guessing and start building. Learn to see electricity as a flowing current you can direct, control, and use to bring your own gadgets to life.
- 1
Making the Connection
- The Complete Loop
- Taming the Current
- 2
Thinking Like a Builder
- Reading the Map
- The Component Toolkit
2 sections · 4 units · 12 levels. Built to play, not to enroll.
You pick the voice
The Flow of Power is taught in the The Professor style: clear, structured, thorough. Want a different feel? In the app you can spin up the same topic in any of Tomo's teaching styles. Same facts, totally different vibe.
More Technology on Tomo
Mastering the Flow: Practical Electronics
Move beyond simple batteries and bulbs to design circuits that solve real problems. Master the math of power, troubleshoot like a pro, and understand how modern gadgets actually think.
Take the Captain's Seat
Stop dreaming about the clouds and start navigating them. Learn how to handle the controls, talk to the tower, and master the art of a perfect landing.
Thinking Like a Security Manager
Learn to view the digital world through the lens of the CISSP. You'll move beyond technical fixes to understand the high-level strategies that keep global organizations safe.
Vibe Coding: Building Software with Intent
Learn to build functional applications by describing your vision rather than writing syntax. This course covers the mindset, tools, and workflows of the new era of AI-driven development.
Thinking Like a Programmer
Learn to speak the language of logic. This course transforms the way you solve problems by teaching you how to give precise, powerful instructions to a computer.
Electronics and Coding with Raspberry Pi
Stop just reading about circuits and start building them. Learn to control the physical world with code, from blinking your first light to designing smart home gadgets.
Start The Flow of Power today.
Download Tomo, search The Flow of Power, and play your first lesson in under a minute.