How a pin-tumbler lock works
A mechanism lesson connects the key, pins and rotating cylinder with a labeled explanation.
Watch mechanisms, an assembly sequence and a classroom concept explained through labeled parts, movement and cutaways.
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A labeled cutaway explains how a turbojet produces thrust, using NASA Glenn’s public guide as the source.
Prompt
Create a 30-second explainer video about how a turbojet engine produces thrust. Source material: https://www.grc.nasa.gov/www/k-12/airplane/aturbj.html (paste a URL, attach a PDF, or leave blank if describing the topic directly). Audience: students learning how jet engines work. Structure: open with the core question the audience has, explain the compressor raises air pressure, fuel burns in the burner, the turbine extracts energy to drive the compressor through a central shaft, and the nozzle accelerates the exhaust to produce thrust clearly in the middle, close with Explore turbojet engines with NASA Glenn. Visual style: Machine anatomy: a labeled isometric conceptual cutaway showing the compressor, burner, turbine, shaft and nozzle. Narration: friendly English voiceover. Aspect ratio: 16:9. Keep the explanation faithful to the source. Use labeled illustrations to clarify the real relationships or sequence. Use motion to explain the concept, and credit the source without implying endorsement.
Selected style
Machine anatomy
Source material
How does a turbojet push a plane forward? Air enters the inlet, and rows of compressor blades raise its pressure, step by step. In the burner, a little fuel mixes with that air and burns: in a typical engine, about two pounds of fuel for every hundred of air. The hot gas spins the turbine, which turns the compressor through a central shaft. The energy that's left speeds the exhaust through the nozzle. Faster out than in: that's thrust. Explore turbojet engines with NASA Glenn.
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How credits workAn independently illustrated assembly follows IKEA LACK manual AA-2544912-1: parts, foot plugs, screws, attached legs and the finished upright table.
Prompt
Create a 40-second 16:9 assembly explainer for someone putting together an IKEA LACK side table for the first time. Use this manufacturer's manual as the factual source: https://www.ikea.com/es/en/assembly_instructions/lack-side-table-white__AA-2544912-1-2.pdf (manual AA-2544912-1). Show an independently drawn isometric technical illustration in Machine anatomy style, with clear labels and close views of the connections. No presenter. Use friendly English narration, readable labels and no background music. Show the sequence from this exact manual: identify the tabletop, four legs, four foot plugs 153551 and four double-ended screws 115980; protect the tabletop on a soft surface while it is upside down; insert one foot plug into the open end of each leg, pressing it flush by hand as in manual step 1; start each double-ended screw into a predrilled tabletop corner by hand; then turn each leg onto its screw until it meets the tabletop, as in manual step 2; show the same four legs becoming attached, then turn the completed table upright. Preserve the tabletop and all four legs throughout the sequence. Show a close view of one joint so the viewer understands how the screw connects the tabletop and leg, then repeat for the other corners. Keep screw direction and part counts consistent. Do not invent tools, torque values, drilling or product dimensions. Close with the manual's limits in plain English: do not sit on the table; maximum load 10 kg. Add a concise source credit: Independent illustration based on IKEA LACK manual AA-2544912-1. No IKEA logo and no suggestion of endorsement. End on the complete upright table. Let the viewer see each connection long enough to follow it.
Selected style
Machine anatomy
Let's build a LACK side table. In the box: one tabletop, four legs, four foot plugs and four double-ended screws. Lay the tabletop upside down on something soft, like a rug, to protect it. Press a foot plug into the open end of each leg by hand until it sits flush. Now start a double-ended screw into each predrilled corner, turning it by hand. Turn a leg onto its screw until it meets the tabletop. The screw joins the two. Repeat for the other three corners. Flip the table upright and it's ready. Please don't sit on it, and keep the load to 10 kg or less.
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How credits workA conceptual reservoir-hydropower lesson follows the water path, explains the turbine-shaft-generator connection and ends with a check question and answer.
Prompt
Create a 45-second 16:9 technical concept lesson for secondary-school students learning about energy transfer. Use https://www.energy.gov/cmei/water/how-hydropower-works and https://www.usgs.gov/water-science-school/science/hydroelectric-power-how-it-works as the factual references. The learner's opening question is: How does water behind a dam become electricity? Use Machine anatomy style: one independently drawn isometric cutaway of a conventional reservoir hydropower plant, with the reservoir above the downstream river, an intake, a pipe labelled PENSTOCK, a turbine below the generator, a shaft visibly joining them, power lines leaving the generator, and the water outlet returning to the river. Keep these same components and connections consistent throughout. No presenter. Use friendly English narration with clear labels and no background music. Structure the lesson as question, mechanism, recap and a check question. Open on the whole plant and the learner's question. Then follow moving water from the reservoir into the penstock and turbine. Show that moving water spins the turbine, the shaft turns the generator, and the generator converts that motion into electricity carried by the power lines. Show the water continuing downstream after the turbine. Use a close view of the turbine-shaft-generator connection to make their different roles clear; keep the water path separate from the electrical lines. Return to the whole figure for the recap, highlighting water movement, turbine rotation and generator output in that order. End with the on-screen and narrated check question: Which part converts the spinning motion into electricity? Hold the question for two seconds, then highlight the generator and answer: The generator. The turbine supplies the turning motion. This is a question within the video, not a clickable quiz. Finish with a readable source credit to the US Department of Energy and USGS, without their logos or endorsement. Keep it a conceptual teaching diagram without invented dimensions, output numbers or engineering simulation claims.
Selected style
Machine anatomy
How does water behind a dam become electricity? Let's follow the water. Water from the reservoir enters the intake and flows down through the penstock. The moving water pushes the turbine blades and spins the turbine, then flows out to the river downstream. Up close, the spinning turbine turns a shaft, and the shaft turns the generator. The generator converts that motion into electricity carried away by the power lines. Water moves, the turbine turns, and the generator makes electricity. Which part converts the spinning motion into electricity? The generator. The turbine supplies the turning motion.
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Video generation uses credits. Review your estimate in ngram. MP4 downloads require Basic or higher.
How credits workTechnical animation makes a component relationship or physical sequence visible. Watch the turbojet, side-table assembly and hydropower lesson with their actual briefs, then compare the lock and compressor treatments below.
Choose an example to play. Each shows a different subject or treatment you can adapt to your own source material.
A mechanism lesson connects the key, pins and rotating cylinder with a labeled explanation.
Cutaways and gauges explain intake, compression and discharge, then connect the compressor to the refrigerant loop.
Bring the source facts and identify what this audience should learn.
Choose Machine anatomy with Opus 5.5. Describe the parts and relationship, adding references when useful; Voice Auto and Presenter No avatar are recommended for narration over the figure.
Approve the plan containing the script, then check the generated video against your source and request any corrections.
Bring the facts and choose a visual treatment that makes the explanation clear.
Video generation uses credits. Review your estimate in ngram. MP4 downloads require Basic or higher.
How credits work