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15 lessons · ~125 minAges 12+ · Class 7+3 of 15 free
How the World Works
Wi-Fi, screens, batteries, GPS, air conditioning: the everyday tech all around you, finally explained for real. Written for curious teens and adults alike.
Hi! I'm Bit the Bot, I'll be your guide.
1Signals in the Air
5 lessons- Lesson 1Starter· ages 7+How Wi-Fi Actually WorksNo wires, no magic: your router shouts in invisible light, and your phone shouts back.9 min+60 XP
- Lesson 2Starter· ages 7+How Bluetooth WorksFinish the previous lesson to unlock!
- Lesson 3Core· ages 9+Cellular and 5GFinish the previous lesson to unlock!
- Lesson 4Core· ages 9+How GPS Knows Where You AreFinish the previous lesson to unlock!
- Lesson 5Core· ages 9+Phase Quiz: Signals in the AirFinish the previous lesson to unlock!
2Screens and Light
4 lessons- Lesson 6Core· ages 9+How Touchscreens Sense YouFinish the previous lesson to unlock!
- Lesson 7Core· ages 9+LED, OLED, and LCD ScreensFinish the previous lesson to unlock!
- Lesson 8Starter· ages 7+How QR Codes WorkFinish the previous lesson to unlock!
- Lesson 9Core· ages 9+Phase Quiz: Screens and LightFinish the previous lesson to unlock!
3Power and Sound
5 lessons- Lesson 10Core· ages 9+How Batteries WorkFinish the previous lesson to unlock!
- Lesson 11Core· ages 9+How Air Conditioning WorksFinish the previous lesson to unlock!
- Lesson 12Core· ages 9+Microphones and SpeakersFinish the previous lesson to unlock!
- Lesson 13Core· ages 9+How Fibre Reaches Your HomeFinish the previous lesson to unlock!
- Lesson 14Core· ages 9+Phase Quiz: Power and SoundFinish the previous lesson to unlock!
4Final challenge
1 lessons- Lesson 15Stretch· ages 11+Boss Quiz: How the World WorksFinish the previous lesson to unlock!