// FREE COURSE F · Beginner
How Your Phone Really Works
5 episodes for everyone who owns a phone: the screen, the battery, the camera, the brain (CPU, GPU, NPU, RAM) and the radios — one part of the phone per episode, opened up in 3D.
1/5 episodes out3 min0 on YouTube0 cost
// EPISODES
Watch in order
Each episode stands alone, but they build on each other.
012:37
The Screen — Pixels, LCD vs OLED and TouchHow millions of red, green and blue lights make every colour, the real difference between LCD and OLED, and how the glass feels your finger.Coming to YouTube soon
2:37
The Screen — Pixels, LCD vs OLED and TouchHow millions of red, green and blue lights make every colour, the real difference between LCD and OLED, and how the glass feels your finger.Coming to YouTube soon
02SOON
The battery: what's inside and why it wears outLithium ions moving between two sides, mAh vs Wh, how fast charging asks for more volts, why charging slows after 80 % and the habits that make a battery last.Coming soon
03SOON
The camera: lens, sensor and millions of light bucketsHow the lens and sensor turn light into numbers, how colour filters and the chip build the photo, and why more megapixels isn't always better.Coming soon
04SOON
The brain: CPU, GPU, NPU and RAMWhat each part of the phone's chip does (big + little cores, graphics, AI), RAM vs storage, and why a full phone gets slow.Coming soon
05SOON
The radios: Wi-Fi, 5G, Bluetooth, GPS and tap-to-payOne phone, many antennas: how each radio sends and receives, and what each one is for.Coming soon
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