Nor was it designed to.
It addresses one specific problem: how to provide a portable source of warmth to someone who may not have reliable access to electricity.
That is what makes the engineering principle behind the project interesting.
Rather than attempting to solve every dimension of homelessness, Rebecca identified one concrete difficulty and designed around it.
Engineering Begins With a Problem
Engineering is sometimes imagined as something that begins with advanced mathematics, laboratories or complicated machinery.
But many inventions begin somewhere much simpler.
Someone notices a problem.
Then they ask why it happens.
Then they ask whether something could be designed differently.
Rebecca's story illustrates that process unusually clearly.
She did not begin by asking, "What can I invent using solar panels?"
She began by seeing people who were cold.
The technology followed the human need.
That distinction matters.
Her design combined technologies that already existed: solar panels, rechargeable batteries, heating elements, insulated sleeping equipment and backpacks.
The originality came from connecting them around a particular use case.
Professional engineers then had to work through the difficult details necessary to turn the concept into a functional device.
That collaboration also offers a more realistic picture of innovation than the familiar myth of a lone inventor creating a perfect machine in one sudden moment of inspiration.
Rebecca supplied the original concept.
Engineers supplied technical experience, testing and manufacturing knowledge.
Primary Engineer created a programme through which the idea could be discovered.
Thales provided engineers and resources to turn the concept into hardware.
Charitable organizations provided a route for the finished products to reach people who might use them.
The impact came from all of those pieces working together.
A Young Person Taken Seriously
There is another important part of Rebecca's story.
Adults listened to her.
Children have ideas constantly.
They draw inventions, imagine machines and propose solutions that may initially sound unrealistic.
Most of those ideas naturally remain on paper.
But programmes like Primary Engineer are built around the possibility that a young person's imagination can contain the beginning of something valuable.
Rebecca's idea was not treated as important because she already had professional credentials.
She did not.
She was a school pupil.
It was treated seriously because the idea itself deserved examination.
Once engineers began building it, Rebecca also gained an opportunity many young students never receive: seeing the engineering design cycle happen around her own concept.
The original idea had to encounter real-world constraints.
Components had to be selected.
Circuits had to be tested.
Structures had to be designed.
Safety had to be considered.
Different parts had to work together as a complete system.
The prototype had to be tested.
That process transformed a school exercise into an education in what engineering actually involves.
Recognition Beyond Glasgow
Rebecca's achievement eventually attracted international attention.
In 2025, she was named among TIME's inaugural Girls of the Year, an initiative recognizing young people making an impact in their communities.
By then, the story had travelled far beyond Glasgow.
Yet the core of it remained remarkably simple.