The Hand Drawn Sweat Cooling Test
A quick whiteboard science explainer turns an everyday cooling question into a drawn numerical comparison and a qualified answer.
Field notes / why it works
The hand starts building the scene immediately, with six picture changes in the first three seconds, while the spoken either-or question is clear by 0:10. Two mechanisms become comparable numbers around 0:50 and 1:20; the first calculation coincides with the strongest replay peak at 0:48.8–0:51.1. The rule at 1:41–1:47 earns a practical exception at 2:08–2:40, adding a second reason to keep watching.
Plate 01 / The format in one breath
Ask an ordinary, slightly uncomfortable question, then draw a physics style comparison that turns the answer into a numerical surprise. A visible hand builds each diagram as a quick, animated narrator explains it; the practical answer gets a qualification before a separate closing message.
Why it works
- The opening creates a personal decision by 0:10, and the hand starts drawing within 0:00.25; six detected changes occur in the first three seconds.
- The story gives the viewer two comparable quantities: about 37 units per hour at 0:51 versus a much larger evaporation figure from 1:01–1:25. The main replay peak is precisely the first calculation, 0:48.8–0:51.1.
- The answer at 1:41–1:47 is revised into a useful edge case at 2:08–2:40, so the viewer gets both a rule and a condition for breaking it.
Plate 02 / Format card
| Platform · aspect · length | YouTube · 16:9 · 640×360 source · 24 fps · 3:41 |
| Pace | 112 detected shots, 111 cuts, 30.1 cuts/min; 128 total picture changes, 34.5/min; mean 1.97 s, median 0.67 s. These measurements count many short phases of the drawing process. The final sponsor shot alone lasts 50.79 s. |
| Script | 862 spoken words · 239 wpm overall, about 262 wpm during speech · 42 sentences averaging 20.5 words · three questions · 3.8 uses of “you” per 100 words. |
| Voice | Low register, quick, bright and animated science narrator; conversational, with audible rises on comparisons and qualifications. |
| On screen | Nearly all top down live hand drawing on a plain white sheet, with simple marker diagrams and short handwritten labels; no presenter face or footage montage. |
| Captions | No transcript captions. Only hand written headings, numbers, arrows, and labels appear when the relevant object is named. |
| Sound | Close, continuous narration; faint tonal bed is suggested by measurement (inferred). No clear recurring cut effects. −13.6 LUFS integrated in the source. |
| Structure | Everyday question → two mechanisms → numerical comparison → condition check → practical answer → separate sponsor message. Main payoff at 1:41–1:47; practical resolution at 2:35–2:40; sponsor begins 2:41. |
Pro / 13 plates + recipe
The first plates are open. The full dissection is Pro.
Get the timed shots, type and sound specs, and the runnable recipe.
Open the full blueprint- Plate 03 / The hook, frame by frame (first 12 seconds)Pro
- Plate 04 / Structure (beat sheet)Pro
- Plate 05 / Shot grammarPro
- Plate 06 / Visual style guidePro
- Plate 07 / Voice and deliveryPro
- Plate 08 / Sound designPro
- Plate 09 / PackagingPro
- Plate 10 / Script templatePro
- Plate 11 / Production planPro
- Plate 12 / PromptsPro
- Plate 13 / Edit recipePro
- Plate 14 / QA checklistPro
- Plate 15 / Make it yoursPro
- Recipe / runnable promptPro