The Closest Thing We Have to Alien Technology
- Grades: 8 to 11
- CS strength: 4 out of 5
- SEL strength: 2 out of 5
What happens
Veritasium, a popular science channel on YouTube, visits ASML, a Dutch company that makes the machines that print the most advanced computer chips. The video explains Moore’s Law (the number of transistors on a chip doubling about every two years), how chips are made in layers, why engineers needed a new kind of light called extreme ultraviolet to keep making them smaller, and how a machine shoots tiny drops of tin with a laser tens of thousands of times a second to make that light. It also tells the story of how a Dutch company, a German optics maker and several other companies and governments worked together to build it.
Why we watch it
This is the hardware side of computer science: where the chips that run every program actually come from. It is a good way to show students that computing depends on physics, engineering and teamwork across countries, and that a few companies are very hard to replace. It is a 55-minute YouTube video made by Veritasium, not a feature film. It is not rated; it has no violence or swearing, and the topic is physics and engineering. The worksheet has a computer science focus.
Teacher ideas (before the movie)
About 10 to 15 minutes. The video is about how the chips inside every device are made. These warm-ups get students thinking about how small things get and who makes them, without giving away the answers.
- How small is small? (3 minutes): On the board, write: a human hair is about 80,000 nanometers wide. Ask: if a modern chip has parts about 10 nanometers wide, how many of those could fit across a hair? (About 8,000.) Let students call out guesses first.
- Hands up (2 minutes): Who has a phone? How old is it? Who thinks a phone from ten years ago could do what yours does now? What changed inside?
- Moore’s Law guess (3 minutes): Write Moore’s Law on the board. Ask what a law about computers could say. Take guesses. Do not give the answer; the video starts there.
- Build a chip? (3 minutes, pairs): If you had to make a very tiny pattern on a surface, what tool would you use? Light? A stencil? A stamp? Each pair shares one idea. The video uses light and a mask like a stencil.
- Who makes the chips? (2 minutes): Ask: where do you think the chips in your phone are made, and by whom? Take guesses. Revisit it at the end.
- Wheel of Names (2 minutes): paste in the class list and spin. “Name one thing you use every day that you could not make yourself.”
Standards alignment
Answer key and teacher notes
- B What is Moore's Law?
- B How are computer chips made?
- B Why can the machine not use ordinary lenses with extreme ultraviolet (EUV) light?
- B How does the machine make EUV light?
- Which two companies built the machine's light system and mirrors together?
Answer key: Questions 1 to 4 follow the video’s explanation as described in its chapter list and published summaries (Moore’s Law, the layer-by-layer chip process, EUV light and mirrors, tin droplets and a laser at about 50,000 a second). Question 5 is marked “(to check)”: confirm against the video which companies are named as partners (a Dutch company and a German optics maker appear in published summaries). Preview the video before showing it.
Questions 1 to 3 follow the video in order; 4 and 5 are from the later sections.
Teaching points by question:
- Moore’s Law: faster, smaller, cheaper devices. Good answers name a real example (phone cameras, AI, games).
- Light and Mirrors: shorter wavelength light prints smaller details; EUV is absorbed by almost everything, so the machine runs in a vacuum and uses ultra-smooth mirrors.
- Problem Solving: this is the engineering process: name the problem, test ideas, fix. Accept any problem if the steps are in order.
- Teamwork Across Countries: no right answer. Look for ideas about skill, cost and risk (supply chain).
CASEL focus: “Teamwork Across Countries” is Relationship Skills (teamwork) and Responsible Decision-Making (institutional impacts).
Format and content note: This is a 55-minute educational YouTube video, not a film. It is not rated. It has no violence, swearing or mature themes. Best for grades 8 to 11. The video includes a short sponsor message from its creator; check where it falls and skip it if you like. YouTube may also show its own ads in the player; the full video is on its own watch page, and a chapter list there lets you jump to a section.