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How it works, under the hood carousel template

Open up an everyday piece of technology: the question, what happens step by step, one surprising number and the myth it clears up.

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  1. Slide 1 of 8 from the How it works, under the hood template: “What happens in the half-second you tap your card”
    Slide 1 of 8
  2. Slide 2 of 8 from the How it works, under the hood template: “How does a card with no battery talk to a reader?”
    Slide 2 of 8
  3. Slide 3 of 8 from the How it works, under the hood template: “The reader wakes the chip up”
    Slide 3 of 8
  4. Slide 4 of 8 from the How it works, under the hood template: “The conversation”
    Slide 4 of 8
  5. Slide 5 of 8 from the How it works, under the hood template: “4 cm”
    Slide 5 of 8
  6. Slide 6 of 8 from the How it works, under the hood template
    Slide 6 of 8
  7. Slide 7 of 8 from the How it works, under the hood template: “Every tap sends a fresh code”
    Slide 7 of 8
  8. Slide 8 of 8 from the How it works, under the hood template: “What everyday tech should we open up next?”
    Slide 8 of 8

See it in the feed

How the example looks once it is posted. In the studio the preview uses your own slides, caption and profile.

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What you do · 1h

Open up an everyday piece of technology: the question, what happens step by step, one surprising number and the myth it clears up.

Slide 1 of 8 from the How it works, under the hood template: “What happens in the half-second you tap your card”1/8
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When to use it

Reach for How it works, under the hood when you want to teach your audience something they can use straight away and give people a quick, fun reason to stop scrolling. Its structure is flexible: your writer picks the shape that suits the topic. Give Postora your topic and it keeps the shape, writing every slide about your subject in your voice.

What each slide does

  1. 1Hook

    Opening: the everyday moment being explained.

    In the example

    What happens in the half-second you tap your card

    Under the hood

    Contactless payment, step by step.

  2. 2section

    The puzzle that makes it interesting, with a one-line hint.

    In the example

    How does a card with no battery talk to a reader?

    The reader powers it.

  3. 3Point

    The first mechanism, in plain words with one everyday comparison.

    In the example

    The reader wakes the chip up

    Step 1 · Power

    A coil in the terminal makes a small magnetic field. The antenna in your card picks it up, and that is enough to run the chip for a moment.

  4. 4Steps

    The rest of the process as a short sequence.

    In the example

    The conversation

    Steps 2 to 4

    • Hello — The chip tells the reader which payment apps it supports.
    • One-time code — It creates a code that only works for this purchase.
    • Check — The bank checks the code and says yes or no.

  5. 5Number

    One surprising figure and why it matters.

    In the example

    4 cm — is roughly as far as the signal reaches

    Which is why you tap, rather than wave from across the room.

  6. 6Comparison

    A common worry, and what actually happens.

    In the example

  7. 7Recap

    The one idea to remember.

    In the example

    Every tap sends a fresh code

    The takeaway

    So a copied one is useless the next time.

  8. 8Call to action

    Ask what to explain next, offering a few options.

    In the example

    What everyday tech should we open up next?

    Next explainer

    Wi-Fi, QR codes or e-ink screens?

Make it in Postora

  1. Step 1

    Say what it is about

    Open How it works, under the hood and type your topic, paste a link or add your notes.

  2. Step 2

    Check the plan

    Postora keeps the template’s structure and writes each slide for your subject, in the voice you pick.

  3. Step 3

    Polish and download

    Edit any word, change the theme or a layout, then export a PDF, images or a video.

Questions about How it works, under the hood

Is the How it works, under the hood template free?

How it works, under the hood is part of VIP. You can look through it for free; using it, along with AI on every carousel and downloads without a mark, comes with a VIP plan.

Which platforms is it made for?

LinkedIn (PDF document post, best at 4:5), Instagram (PNG images, best at 4:5), TikTok (PNG images or an MP4 video, best at 9:16) and X (PNG images, best at 16:9). Postora sizes the carousel for the network you pick and checks it against that network’s limits before you download it.

How many slides does it have?

8, each with its own job (shown above). You can add, remove or reorder slides: free carousels go up to 8 slides, VIP up to 30.

Can I change the design?

Yes. It opens in the Lab Notes theme, and you can switch to any of 95 themes or your own brand kit in one click, swap the layout of any slide, and edit every word.

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