By Industry & Audience

How to Create Science and Engineering Explainer Videos With AI

Make an invisible mechanism visible in Golpo, from notes, a LaTeX-ready script, or a recording, with diagrams a reviewer can check.

Rohan MehtaAugust 5, 202637 min read

Scientific diagrams of a bridge, circuit, molecule, forces, and equations flowing into an illustrated explainer

The practical answer: Make the invisible mechanism visible, from your notes, equations, and a real experiment to a reviewed animated explanation. Golpo is built to be the complete AI explainer workflow. Start from the notes, a diagram, an approved script, or your own recording. Golpo drafts the narration, plans the scenes, and renders the video. You approve the script before the video is created, then check units, arrow directions, and any number against the source.

The heat-pump video is the mechanism to inspect. The LaTeX scene map and the arrow correction under it are the recipe for the next render. Examples 7–9 are constructed demonstration audio, labeled beside each player.

What you control when the subject is a mechanism

A prompt can draft a clear explanation. It does not validate the physics. Pair a LaTeX-capable script with scene mapping, put the real diagram in the frame, and correct one wrong arrow after a person checks the direction.

Control	What changes	Plan
Equations in Script Mode	Supply Markdown or LaTeX in the narration. Golpo renders that math into the narrated visuals. You still check notation, units, signs, and the result.	Choose a duration long enough for every step. About 1,050 characters of narration fit in each selected minute.
Custom Scenes	Give each mathematical step its own scene, including the equation, within the engine limit. The map does not rewrite the narration.	Growth and higher, and Pay As You Go.
On-screen text from script only	Generated labels stay inside the script’s vocabulary. Golpo may show a subset. This is not a caption track and it does not verify the equation.	Canvas and Sketch.
Own Media	Insert the apparatus photo or the chart you measured. A generated coil is an illustration of the idea.	Business and higher, and Pay As You Go.
Own Narration	A recording of the real explanation drives the visuals. Examples 7–9 on this page are written scripts read by Golpo Audio Only.	Business and higher, and Pay As You Go.
Frame editing	Correct a wrong arrow or label. The narration audio stays as recorded or generated.	All paid plans
Custom Style	Save a lab-notebook look and a mechanism-diagram look, then reuse them. The nine renders on this page all use Professional Clean.	Business and higher. API use also needs API access.

First, find a channel angle that can survive research

Use this section when you are choosing a channel. A single episode can start in Golpo from one source before this worksheet is finished.

Do not ask ChatGPT or Claude, “What niche is profitable?” and publish the first list. Use AI to organize evidence you collect from YouTube search, audience comments, official sources, and your own expertise. The niche must produce repeatable viewer questions without forcing you to manufacture certainty.

Copyable niche-research prompt for ChatGPT or Claude

I am evaluating a YouTube channel about science and engineering.
My expertise or access: [be specific].
My intended audience: [one group].
My geography/jurisdiction: [if relevant].

Do not claim current search demand from memory. First give me a research worksheet for:
1. 30 real YouTube search results and their publish dates, views, formats, and unanswered comments;
2. 20 recurring audience questions from comments, forums, support logs, or classrooms;
3. authoritative primary sources available for each question;
4. update frequency, rights, safety, and qualified-review burden;
5. a 20-video pilot with one learning outcome per episode.

Then score three channel angles from 1–5 on evidence access, visual explainability,
repeatability, freshness burden, harm if wrong, and my unfair advantage.
Flag every conclusion that still needs live research.

Run the research yourself. Reject an angle if its best titles require guaranteed outcomes, private data, unlicensed media, fake quotations, diagnosis, unsafe imitation, or advice beyond your competence. Use the faceless niche scorecard for a deeper commercial and editorial test.

Choose the correct Golpo input mode

Mode	Use it when	You supply	Main failure to prevent
Prompt Mode	The generator may organize wording inside a narrow, source-controlled brief.	Audience, outcome, approved facts, source URL, visual sequence, prohibitions, CTA.	The prompt becomes an idea only, so the model fills gaps with plausible fiction.
Script Mode	Every spoken word, qualification, number, or quotation must stay fixed.	A complete narration within the current per-minute character allowance, plus separate visual direction.	Shot directions are pasted into narration and spoken aloud.
Own Narration	The real speaker’s voice, authority, testimony, pronunciation, or delivery matters.	A clean recording you have rights to use, plus visual direction. Duration follows the audio.	A creator expects Voice Instructions or voice selection to change uploaded audio.

Important: Prompt/Script text belongs in the main input. Video Instructions control visual sequence, diagrams, continuity, exclusions, and on-screen implications. Voice Instructions control synthetic narration pace and delivery. With Own Narration, the recording replaces voice selection and Voice Instructions.

The source-to-video workflow

Write the one-sentence outcome: by the end, the viewer can explain a mechanism with diagrams, equations, scale, and observable evidence.
Build a claim sheet: claim, source, as-of date, exact supporting passage or data, limitation, rights status, and update trigger.
Choose the mode: Prompt for bounded synthesis, Script for exact language, Own Narration for a real speaker.
Write narration separately from production direction: no camera cues or bracketed scene notes in a Script Mode narration.
Write Video Instructions: define the visual sequence, recurring anchors, labels, scale, forbidden imagery, accessibility, and final CTA.
Write Voice Instructions: specify pace, tone, pauses, and pronunciations only when using a synthetic voice.
Generate and edit: review the script before generation; inspect every frame and revise misleading visuals.
Run two approvals: a subject-matter review for claims and a production review for what the final video implies.
Publish the evidence trail: source links, access dates, disclosures, captions, corrections route, and update owner.

Nine end-to-end science and engineering examples

These are complete production briefs. Examples 1–3 use Prompt Mode. Examples 4–6 use Script Mode, which is where an equation should be locked word for word. Examples 7–9 occupy the Own Narration slot. Their audio was generated with Golpo Audio Only from written scripts. They are hypothetical teaching audio. Upload a real explanation when the voice and the measurements are yours.

Prompt Mode: Golpo writes from a bounded brief

Prompt Mode example 1 of 3

1. Why the Moon has phases

Finished Golpo video · Example 1 · Prompt Mode · open MP4

Audience: middle-school science learners
Learning result: Correct the misconception that Earth’s shadow causes ordinary phases.
Authority source: NASA: Moon Phases

Exact Golpo configuration

Own Narration: OFF · Script Mode: OFF · Duration: 2 minutes · Orientation: Horizontal (16:9) · Style: Professional Clean · Color: ON · Language: English · Voice: Female 1 · Pace: Normal · Music: None · Edit script before generation: ON

Exact prompt used to create this video

This is the exact prompt sent to Golpo Prompt Mode for the rendered example. Copy it, then replace the audience, source, approved facts, and accuracy boundary for your topic.

Create a 2 minutes illustrated explainer for middle-school science learners.

Title: Why the Moon has phases
Learning goal: Correct the misconception that Earth’s shadow causes ordinary phases.
Primary source: NASA: Moon Phases — https://science.nasa.gov/moon/moon-phases/
Approved facts: The Moon reflects sunlight; the Sun always illuminates half, and our view of that lit half changes as the Moon orbits Earth. The cycle is about 29.5 days.

Structure:
1. Open with one precise question, not hype.
2. Orient the viewer with the minimum definitions needed.
3. Explain the mechanism in three visual steps.
4. Correct one likely misconception.
5. End with this action: Ask viewers to predict the next phase from one position.

Visual sequence: Sun fixed left → Earth center → Moon at eight positions → split-screen Earth view; mark diagram not to scale.
Accuracy boundary: Do not use Earth’s shadow except to contrast an eclipse, and do not imply the Moon makes light.
Do not invent numbers, quotations, studies, dates, products, people, or causal claims. If a detail is not in the approved facts, omit it.

Video Instructions

Use one continuous visual system: Sun fixed left → Earth center → Moon at eight positions → split-screen Earth view; mark diagram not to scale. Keep recurring people, objects, colors, and spatial positions consistent. Put no unsupported numbers or quotations on screen. Do not use Earth’s shadow except to contrast an eclipse, and do not imply the Moon makes light. Use large readable labels, high contrast, and captions. Do not show brand logos unless supplied and cleared. End on the stated CTA, not a generic subscribe animation.

Voice Instructions

Speak at a normal pace with calm authority. Use plain language, pause briefly before the misconception or safety boundary, and never sound excited about risk, diagnosis, guaranteed outcomes, or fear. Pronounce specialist terms from the reviewer-approved pronunciation list.

YouTube package

Search-led title: Why the Moon has phases — Explained Visually
Thumbnail: EARTH'S SHADOW? NO.
CTA: Ask viewers to predict the next phase from one position.

Example boundary

Shared review checklist, plus this boundary: Do not use Earth’s shadow except to contrast an eclipse, and do not imply the Moon makes light.

Prompt Mode example 2 of 3

2. How a heat pump moves heat

Finished Golpo video · Example 2 · Prompt Mode · open MP4

Audience: homeowners and introductory engineering students
Learning result: Show the direction of energy transfer in heating and cooling modes.
Authority source: ENERGY STAR: Air-Source Heat Pumps

Exact Golpo configuration

Own Narration: OFF · Script Mode: OFF · Duration: 2 minutes · Orientation: Horizontal (16:9) · Style: Professional Clean · Color: ON · Language: English · Voice: Female 1 · Pace: Normal · Music: None · Edit script before generation: ON

Exact prompt used to create this video

This is the exact prompt sent to Golpo Prompt Mode for the rendered example. Copy it, then replace the audience, source, approved facts, and accuracy boundary for your topic.

Create a 2 minutes illustrated explainer for homeowners and introductory engineering students.

Title: How a heat pump moves heat
Learning goal: Show the direction of energy transfer in heating and cooling modes.
Primary source: ENERGY STAR: Air-Source Heat Pumps — https://www.energystar.gov/products/air_source_heat_pumps
Approved facts: A heat pump transfers heat rather than creating it by resistance alone; the refrigeration cycle changes pressure, temperature, and phase.

Structure:
1. Open with one precise question, not hype.
2. Orient the viewer with the minimum definitions needed.
3. Explain the mechanism in three visual steps.
4. Correct one likely misconception.
5. End with this action: Invite viewers to identify which coil releases heat in each mode.

Visual sequence: Outdoor coil → compressor → indoor coil → expansion device → reversible flow; color-code refrigerant state without fake exact temperatures.
Accuracy boundary: Do not promise savings or prescribe equipment sizing; climate, building, rates, and installation matter.
Do not invent numbers, quotations, studies, dates, products, people, or causal claims. If a detail is not in the approved facts, omit it.

Video Instructions

Use one continuous visual system: Outdoor coil → compressor → indoor coil → expansion device → reversible flow; color-code refrigerant state without fake exact temperatures. Keep recurring people, objects, colors, and spatial positions consistent. Put no unsupported numbers or quotations on screen. Do not promise savings or prescribe equipment sizing; climate, building, rates, and installation matter. Use large readable labels, high contrast, and captions. Do not show brand logos unless supplied and cleared. End on the stated CTA, not a generic subscribe animation.

Voice Instructions

Speak at a normal pace with calm authority. Use plain language, pause briefly before the misconception or safety boundary, and never sound excited about risk, diagnosis, guaranteed outcomes, or fear. Pronounce specialist terms from the reviewer-approved pronunciation list.

YouTube package

Search-led title: How a heat pump moves heat — Explained Visually
Thumbnail: HEAT MOVES BOTH WAYS
CTA: Invite viewers to identify which coil releases heat in each mode.

Example boundary

Shared review checklist, plus this boundary: Do not promise savings or prescribe equipment sizing; climate, building, rates, and installation matter.

Equation, diagram, and one corrected arrow

Example 2 is the finished Prompt Mode video. The block below is the recipe for the next render of the same mechanism. It is not the script of the video above, and the corrected arrow is not a second file on this page. Values stay qualitative unless a source you attach supplies them. ENERGY STAR’s heat-pump page, already linked on the example, describes heat moving through a refrigeration cycle. It is not a lab report of a unit you tested.

Source. Reopen ENERGY STAR: Air-Source Heat Pumps. If you have a manufacturer diagram or a chart from a real run, that file is the Own Media insert. A generated coil stands in only until that image exists.
Settings. Script Mode, 2 minutes, horizontal, color on, Edit script before creating video on. Put the equation in the narration. Put the arrow directions in Video Instructions. Turn on on-screen text from script only in Canvas or Sketch so labels come from the script.
Script review. Approve this narration before the render. It is about one step per sentence so Custom Scenes can give the equation its own frame:

A heat pump moves heat. It does not create heat the way a resistance heater does.
In heating mode, the outdoor coil collects heat and the indoor coil releases it.
The heating coefficient of performance is COP_heating = Q_delivered / W_input.
Reversing the flow swaps which coil releases heat.
Leave any numeric efficiency off the screen until a reviewed source supplies it.

In Golpo, write the third sentence with Markdown or LaTeX, for example \(\mathrm{COP}_{heating}=Q_{delivered}/W_{input}\). The guide to equations in educational videos shows the syntax. This page uses the plain-text form so the ratio stays readable here. The ratio is a definition for the lesson, not a measured result from a test on this page.

Result. Watch example 2 for the qualitative cycle. The LaTeX version is the render you make next.
One correction. If the heating-mode arrow points heat from indoors to outdoors, frame-edit that arrow so heat is shown moving into the building. Frame editing changes the picture and leaves the narration audio unchanged. The first edited version is free across sessions until finalized. A later 2-minute edited version is 2 credits, in addition to the original 2.
One reuse. Render the same approved script once in a lab-notebook Custom Style and once as a mechanism diagram, for the lesson and the design review. Both styles are saved in My Styles. The published heat-pump file uses Professional Clean, so those two treatments are the reuse you run next. A circuit episode can reuse the mechanism style with a new script.

Prompt Mode example 3 of 3

3. Why a Fresnel lens can be thin

Finished Golpo video · Example 3 · Prompt Mode · open MP4

Audience: physics and engineering viewers
Learning result: Connect optical geometry to lighthouse engineering.
Authority source: National Park Service: The Fresnel Lens

Exact Golpo configuration

Own Narration: OFF · Script Mode: OFF · Duration: 2 minutes · Orientation: Horizontal (16:9) · Style: Professional Clean · Color: ON · Language: English · Voice: Female 1 · Pace: Normal · Music: None · Edit script before generation: ON

Exact prompt used to create this video

This is the exact prompt sent to Golpo Prompt Mode for the rendered example. Copy it, then replace the audience, source, approved facts, and accuracy boundary for your topic.

Create a 2 minutes illustrated explainer for physics and engineering viewers.

Title: Why a Fresnel lens can be thin
Learning goal: Connect optical geometry to lighthouse engineering.
Primary source: National Park Service: The Fresnel Lens — https://www.nps.gov/articles/fresnellens.htm
Approved facts: A Fresnel lens uses stepped sections and prisms to concentrate light while removing much of the bulk of a conventional lens.

Structure:
1. Open with one precise question, not hype.
2. Orient the viewer with the minimum definitions needed.
3. Explain the mechanism in three visual steps.
4. Correct one likely misconception.
5. End with this action: Ask viewers where Fresnel lenses appear outside lighthouses.

Visual sequence: Thick lens profile → unused bulk removed → stepped rings → ray paths converge → lighthouse beam.
Accuracy boundary: Do not claim the stepped lens violates refraction or show rays bending in impossible directions.
Do not invent numbers, quotations, studies, dates, products, people, or causal claims. If a detail is not in the approved facts, omit it.

Video Instructions

Use one continuous visual system: Thick lens profile → unused bulk removed → stepped rings → ray paths converge → lighthouse beam. Keep recurring people, objects, colors, and spatial positions consistent. Put no unsupported numbers or quotations on screen. Do not claim the stepped lens violates refraction or show rays bending in impossible directions. Use large readable labels, high contrast, and captions. Do not show brand logos unless supplied and cleared. End on the stated CTA, not a generic subscribe animation.

Voice Instructions

Speak at a normal pace with calm authority. Use plain language, pause briefly before the misconception or safety boundary, and never sound excited about risk, diagnosis, guaranteed outcomes, or fear. Pronounce specialist terms from the reviewer-approved pronunciation list.

YouTube package

Search-led title: Why a Fresnel lens can be thin — Explained Visually
Thumbnail: THE LENS WITH LESS GLASS
CTA: Ask viewers where Fresnel lenses appear outside lighthouses.

Example boundary

Shared review checklist, plus this boundary: Do not claim the stepped lens violates refraction or show rays bending in impossible directions.

Script Mode: you lock every spoken word

Script Mode example 1 of 3

4. The water cycle is not a neat circle

Finished Golpo video · Example 4 · Script Mode · open MP4

Audience: grades 6–9
Learning result: Replace the four-arrow cartoon with a system view.
Authority source: USGS Water Cycle

Exact Golpo configuration

Own Narration: OFF · Script Mode: ON · Duration: 2 minutes · Orientation: Horizontal (16:9) · Style: Professional Clean · Color: ON · Language: English · Voice: Female 1 · Pace: Normal · Music: None · Edit script before generation: ON

Exact script used to create this video

This is the exact Script Mode narration supplied to Golpo. Golpo was instructed to preserve these spoken words while creating the visuals.

The water cycle is not one drop running around a simple circle. Water can remain in oceans, ice, soil, groundwater, the atmosphere, and living things for very different lengths of time. Energy from the Sun helps move water into the atmosphere; gravity helps move it across land and underground. Precipitation may become runoff, infiltrate soil, recharge groundwater, freeze, or return to the air. Human use also changes where water is stored, how it moves, and how clean it is. Think of a connected system of reservoirs and pathways, not a single loop.

Video Instructions

Use one continuous visual system: Reservoir map → evaporation/transpiration → precipitation → runoff/infiltration/groundwater → human uses; arrows vary in size and duration. Keep recurring people, objects, colors, and spatial positions consistent. Put no unsupported numbers or quotations on screen. Do not imply every water molecule follows the same route or speed. Use large readable labels, high contrast, and captions. Do not show brand logos unless supplied and cleared. End on the stated CTA, not a generic subscribe animation.

Voice Instructions

Speak at a normal pace with calm authority. Use plain language, pause briefly before the misconception or safety boundary, and never sound excited about risk, diagnosis, guaranteed outcomes, or fear. Pronounce specialist terms from the reviewer-approved pronunciation list.

YouTube package

Search-led title: The water cycle is not a neat circle — Explained Visually
Thumbnail: NOT JUST FOUR ARROWS
CTA: Link the USGS multilingual diagram.

Example boundary

Shared review checklist, plus this boundary: Do not imply every water molecule follows the same route or speed.

Script Mode example 2 of 3

5. Why bridges need room to expand

Finished Golpo video · Example 5 · Script Mode · open MP4

Audience: general engineering viewers
Learning result: Explain the need for joints without turning it into a repair tutorial.
Authority source: FHWA: coefficient of thermal expansion

Exact Golpo configuration

Own Narration: OFF · Script Mode: ON · Duration: 2 minutes · Orientation: Horizontal (16:9) · Style: Professional Clean · Color: ON · Language: English · Voice: Female 1 · Pace: Normal · Music: None · Edit script before generation: ON

Exact script used to create this video

This is the exact Script Mode narration supplied to Golpo. Golpo was instructed to preserve these spoken words while creating the visuals.

A bridge is not exactly the same length on every day of the year. Many materials expand as temperature rises and contract as it falls. The amount depends on the material, the temperature change, the length involved, and how the structure is restrained. Engineers use joints, bearings, and other details to accommodate movement and transfer loads. The motion in this animation is exaggerated so you can see the mechanism. It is not an inspection guide, and a visible gap alone does not tell you whether a real bridge is safe.

Video Instructions

Use one continuous visual system: Cold bridge segment → warming → exaggerated expansion → restrained stress → designed joint/bearing; label motion exaggerated. Keep recurring people, objects, colors, and spatial positions consistent. Put no unsupported numbers or quotations on screen. Do not give inspection or repair instructions; real bridges require professional engineering. Use large readable labels, high contrast, and captions. Do not show brand logos unless supplied and cleared. End on the stated CTA, not a generic subscribe animation.

Voice Instructions

Speak at a normal pace with calm authority. Use plain language, pause briefly before the misconception or safety boundary, and never sound excited about risk, diagnosis, guaranteed outcomes, or fear. Pronounce specialist terms from the reviewer-approved pronunciation list.

YouTube package

Search-led title: Why bridges need room to expand — Explained Visually
Thumbnail: THE GAP IS DESIGNED
CTA: Ask viewers to find the movement allowance on a public structure without touching it.

Example boundary

Shared review checklist, plus this boundary: Do not give inspection or repair instructions; real bridges require professional engineering.

Script Mode example 3 of 3

6. A circuit needs a complete path

Finished Golpo video · Example 6 · Script Mode · open MP4

Audience: introductory electricity students
Learning result: Prevent the water-pipe analogy from replacing the actual circuit.
Authority source: U.S. Department of Energy: Electricity Industry Primer

Exact Golpo configuration

Own Narration: OFF · Script Mode: ON · Duration: 2 minutes · Orientation: Horizontal (16:9) · Style: Professional Clean · Color: ON · Language: English · Voice: Female 1 · Pace: Normal · Music: None · Edit script before generation: ON

Exact script used to create this video

This is the exact Script Mode narration supplied to Golpo. Golpo was instructed to preserve these spoken words while creating the visuals.

A battery and a bulb do not make a working circuit unless there is a continuous conductive path. With the switch open, the loop is broken. Close the switch and the source establishes an electric field through the circuit; charge already present in the conductors begins to move, and the lamp converts electrical energy into light and heat. Voltage, current, and resistance are related, but they are not interchangeable labels. This is a low-voltage concept diagram, not guidance for household wiring.

Video Instructions

Use one continuous visual system: Battery → open switch → no continuous path → closed switch → charge-motion arrows → lamp energy conversion. Keep recurring people, objects, colors, and spatial positions consistent. Put no unsupported numbers or quotations on screen. Use conventional current consistently and do not provide mains-wiring instructions. Use large readable labels, high contrast, and captions. Do not show brand logos unless supplied and cleared. End on the stated CTA, not a generic subscribe animation.

Voice Instructions

Speak at a normal pace with calm authority. Use plain language, pause briefly before the misconception or safety boundary, and never sound excited about risk, diagnosis, guaranteed outcomes, or fear. Pronounce specialist terms from the reviewer-approved pronunciation list.

YouTube package

Search-led title: A circuit needs a complete path — Explained Visually
Thumbnail: FIND THE BROKEN PATH
CTA: Invite viewers to draw the loop before predicting whether the lamp lights.

Example boundary

Shared review checklist, plus this boundary: Use conventional current consistently and do not provide mains-wiring instructions.

Own Narration: your recording controls delivery

Own Narration example 1 of 3

7. My free-body-diagram method

Finished Golpo video · Example 7 · Own Narration Mode · open MP4

Playable source audio used for this video

Golpo Audio Only · exact transcript verified · open or download MP3

Exact Golpo audio-only settings

Audio Only: ON · Timing: automatic · Language: English · Voice: Warm neutral female (solo-female-3)

Prompt: Create a natural audio-only narration titled: My free-body-diagram method. Read the supplied script exactly.

Voice Instructions: Sound like a thoughtful person explaining a real experience to one listener. Use natural conversational phrasing, varied but restrained intonation, and brief pauses between ideas. Keep a warm neutral tone. Do not sound like an announcer, advertisement, synthetic assistant, or podcast intro. Read only the supplied script, without adding an introduction, sign-off, or Golpo tagline.

Audience: first-year physics students
Learning result: Walk a class through a diagram-first sequence. The voice is constructed demonstration audio
Authority source: NASA education search. No class record is attached

Exact Golpo configuration

Own Narration: ON · Upload: reviewed MP3/WAV · Script Mode: OFF · Duration: automatic from audio · Orientation: Horizontal (16:9) · Style: Professional Clean · Color: ON · Music: None · Spoken language: match recording · Voice selection: not used · Voice Instructions: not used

Two-step Golpo workflow: first create or record a clean MP3/WAV. The playable demo audio above was made with Golpo Audio Only from the exact transcript below. Then turn Own Narration ON, upload the audio, and let its duration control the video. During the video step, Golpo follows the uploaded file rather than the video voice selector.

Exact narration transcript used for this video

The playable MP3 above speaks this exact transcript. To use your own voice instead, record the same kind of reviewed narration and upload that file with Own Narration ON. Portable label, keep this sentence with any excerpt you copy: constructed demonstration narration from a written script. Hypothetical teaching audio. It is not a performed experiment, a measurement log, or a team test record.

Here is the sequence I ask my students to use. First, name the object or system you are analyzing. Draw a boundary around it. Next, list every external interaction: gravity, a surface, a rope, air, or another object. Now replace those interactions with force arrows that begin on the system. Choose convenient axes only after the forces are visible. Finally, write equations from the diagram. Motion does not create a separate force arrow. The diagram is a model, so state what you ignored and why.

Video Instructions

Use one continuous visual system: Real object → boundary around system → interaction list → force arrows → axes → equation; keep arrow lengths qualitative unless values are known. Keep recurring people, objects, colors, and spatial positions consistent. Put no unsupported numbers or quotations on screen. Do not add forces because the object is moving; distinguish velocity from force. Use large readable labels, high contrast, and captions. Do not show brand logos unless supplied and cleared. End on the stated CTA, not a generic subscribe animation.

Voice Instructions

Not used. Golpo follows the uploaded narration. Record in a quiet room, keep a steady distance from the microphone, leave a short pause between sections, and do not upload a voice you lack permission to publish.

YouTube package

Search-led title: My free-body-diagram method — Explained Visually
Thumbnail: STOP DRAWING EXTRA FORCES
CTA: Offer a blank practice diagram.

Example boundary

Shared review checklist, plus this boundary: Do not add forces because the object is moving; distinguish velocity from force.

Own Narration example 2 of 3

8. Narrate your own classroom experiment

Finished Golpo video · Example 8 · Own Narration Mode · open MP4

Playable source audio used for this video

Golpo Audio Only · exact transcript verified · open or download MP3

Exact Golpo audio-only settings

Audio Only: ON · Timing: automatic · Language: English · Voice: Calm authoritative male (solo-male-3)

Prompt: Create a natural audio-only narration titled: Narrate your own classroom experiment. Read the supplied script exactly.

Voice Instructions: Sound like a thoughtful person explaining a real experience to one listener. Use natural conversational phrasing, varied but restrained intonation, and brief pauses between ideas. Keep a warm neutral tone. Do not sound like an announcer, advertisement, synthetic assistant, or podcast intro. Read only the supplied script, without adding an introduction, sign-off, or Golpo tagline.

Audience: science teachers
Learning result: Use a real voice and real data without overstating the result.
Authority source: NIST SI units. No pendulum data is attached

Exact Golpo configuration

Own Narration: ON · Upload: reviewed MP3/WAV · Script Mode: OFF · Duration: automatic from audio · Orientation: Horizontal (16:9) · Style: Professional Clean · Color: ON · Music: None · Spoken language: match recording · Voice selection: not used · Voice Instructions: not used

Exact narration transcript used for this video

I tested how changing the length of this pendulum affected the time for ten swings. I measured three trials at each length and recorded the units before calculating an average. The animation shows my actual values, rounded only at the final step. The longer pendulum took more time in this setup. That observation supports the relationship we expected, but this small classroom test does not measure every source of error. Reaction time and the angle of release may have affected the results. A stronger follow-up would use automated timing and more trials.

Video Instructions

Use one continuous visual system: Question card → apparatus sketch → three measurements → average/spread → cautious inference → next test. Keep recurring people, objects, colors, and spatial positions consistent. Put no unsupported numbers or quotations on screen. Do not fabricate data, remove inconvenient trials without explanation, or claim causation beyond the design. Use large readable labels, high contrast, and captions. Do not show brand logos unless supplied and cleared. End on the stated CTA, not a generic subscribe animation.

Voice Instructions

Not used. Golpo follows the uploaded narration. Record in a quiet room, keep a steady distance from the microphone, leave a short pause between sections, and do not upload a voice you lack permission to publish.

YouTube package

Search-led title: Narrate your own classroom experiment — Explained Visually
Thumbnail: WHAT THE DATA ACTUALLY SHOWED
CTA: Share the data table and invite replication.

Example boundary

Shared review checklist, plus this boundary: Do not fabricate data, remove inconvenient trials without explanation, or claim causation beyond the design.

Own Narration example 3 of 3

9. An engineering design review in your voice

Finished Golpo video · Example 9 · Own Narration Mode · open MP4

Playable source audio used for this video

Golpo Audio Only · exact transcript verified · open or download MP3

Exact Golpo audio-only settings

Audio Only: ON · Timing: automatic · Language: English · Voice: Warm neutral female (solo-female-3)

Prompt: Create a natural audio-only narration titled: An engineering design review in your voice. Read the supplied script exactly.

Voice Instructions: Sound like a thoughtful person explaining a real experience to one listener. Use natural conversational phrasing, varied but restrained intonation, and brief pauses between ideas. Keep a warm neutral tone. Do not sound like an announcer, advertisement, synthetic assistant, or podcast intro. Read only the supplied script, without adding an introduction, sign-off, or Golpo tagline.

Audience: student engineering teams
Learning result: Show engineering as iteration rather than instant invention.
Authority source: NASA design-process page. No test log is attached

Exact Golpo configuration

Own Narration: ON · Upload: reviewed MP3/WAV · Script Mode: OFF · Duration: automatic from audio · Orientation: Horizontal (16:9) · Style: Professional Clean · Color: ON · Music: None · Spoken language: match recording · Voice selection: not used · Voice Instructions: not used

Exact narration transcript used for this video

Our first design met the weight target but failed the stability test. Instead of hiding that result, we used it to revise the design. We compared two changes against the same requirements: mass, stability, build time, and material limit. The version shown here performed better in our classroom test, but it has not been certified for real-world use. The next test will repeat the load case and check whether the improvement holds across several builds. Engineering progress is the trail from requirement to evidence to revision.

Video Instructions

Use one continuous visual system: Requirement matrix → two concepts → test evidence → tradeoff chart → selected revision → next test. Keep recurring people, objects, colors, and spatial positions consistent. Put no unsupported numbers or quotations on screen. Do not call a prototype safe, certified, or production-ready without the relevant review. Use large readable labels, high contrast, and captions. Do not show brand logos unless supplied and cleared. End on the stated CTA, not a generic subscribe animation.

Voice Instructions

Not used. Golpo follows the uploaded narration. Record in a quiet room, keep a steady distance from the microphone, leave a short pause between sections, and do not upload a voice you lack permission to publish.

YouTube package

Search-led title: An engineering design review in your voice — Explained Visually
Thumbnail: WHY WE REJECTED VERSION 1
CTA: Invite viewers to challenge one assumption in the decision matrix.

Example boundary

Shared review checklist, plus this boundary: Do not call a prototype safe, certified, or production-ready without the relevant review.

SEO that earns the click without breaking trust

Title: lead with the exact viewer question and a concrete mechanism: “How X Works,” “Why X Happens,” or “X Checklist.” Do not use “guaranteed,” “secret,” or “everything” unless literally supportable.
Thumbnail: show one tension or misconception in three to five words. The examples above include a tested starting phrase.
Description: answer the question in the first two lines, then list sources, as-of date, audience boundary, disclosure, chapters, and corrections contact.
Chapters: name the actual learning steps rather than “Intro” and “More.”
Series links: send viewers to the next prerequisite or application, not a random popular upload.

YouTube’s monetization policies require original, authentic content and can reject repetitive or mass-produced templates. Add your own research, teaching decision, case, analysis, narration, or demonstration. If realistic synthetic or altered content could mislead a viewer, review YouTube’s current altered and synthetic content disclosure guidance.

Final quality-control checklist

One named audience and one testable learning outcome
Every factual claim mapped to a source and as-of date
Prompt, Script, or Own Narration selected for a stated reason
Main input contains no production cues that could be spoken
Video Instructions cover sequence, continuity, labels, exclusions, and CTA
Voice Instructions cover only synthetic delivery—or explicitly say not used
Numbers, equations, dates, quotations, maps, and on-screen labels independently checked
Rights and consent cleared for audio, documents, images, music, names, and stories
Captions reviewed and color is not the only carrier of meaning
Thumbnail and title do not promise more certainty than the video
Description contains sources, disclosure, corrections route, and update trigger
Run this list once. Each example keeps only its own boundary.

Authority sources used in these examples

NASA: Moon Phases — used in the worked examples above.
ENERGY STAR: Air-Source Heat Pumps — used in the worked examples above.
National Park Service: The Fresnel Lens — used in the worked examples above.
USGS Water Cycle — used in the worked examples above.
FHWA: coefficient of thermal expansion — used in the worked examples above.
U.S. Department of Energy: Electricity Industry Primer — used in the worked examples above.
NASA education search. No class record is attached — used in the worked examples above.
NIST SI units. No pendulum data is attached — used in the worked examples above.
NASA design-process page. No test log is attached — used in the worked examples above.

Trend-led Golpo creator guide series

These guides answer the strongest recurring production needs seen across current user videos. Use adjacent guides for formats that overlap your channel.

FAQ

Can Golpo create science and engineering videos?

Yes. Golpo can start from notes, a document, an approved script, or your recording, then draft narration, plan scenes, and render the video. You still check equations, units, and diagrams. A prompt is not a physics or engineering validator.

Which mode gives the most control?

Script Mode keeps the supplied narration, including LaTeX you want spoken and shown. Own Narration keeps a real recording’s delivery; the audio sets duration and language. Prompt Mode drafts the wording from a bounded brief, and you approve it before the render.

What is the difference between Video Instructions and Voice Instructions?

Video Instructions describe what viewers see. Voice Instructions describe how a generated voice speaks: tone, pace, emphasis, and pronunciation. Voice Instructions do not change an Own Narration recording, and they do not clone a voice.

Can I copy these examples exactly?

Copy the structure. Reopen every source. Treat examples 7–9 as constructed scripts, and attach measurements only when you have the records.

Which Golpo plan do I need?

A standard 2-minute video is 2 credits. Voice Instructions are on Creator and higher and on Pay As You Go. Custom Scenes and color start at Growth, and Custom Scenes are also on Pay As You Go. Own Narration, Custom Style and Own Media are on Business and higher and on Pay As You Go. Frame editing: all paid plans. See the pricing page.

Do the first-person videos record real experiments?

Examples 7, 8, and 9 are constructed demonstration narration. The institutional links are method or units references. They are not measurement logs or team test records. Label illustrative values, and use Own Narration when the recording is actually yours.

Explain the mechanism you teach next

Turn the hardest mechanism in your next lesson or design review into one reusable visual explanation. Start from your notes or a diagram in Golpo, put the equation in a Script Mode scene, and correct one arrow after a technical review.

The series version of this job is the science YouTube guide.

Create the explanation in Golpo