Various news stories have said that Xóchitl Guadalupe Cruz López, an eight-year-old girl living in Chiapas, Mexico, invented an inexpensive water heater made of recycled materials.

At just 8 years old, Xóchitl Guadalupe Cruz has invented a device to help low-income families.

"8-year-old Mexican Girl Wins Nuclear Sciences Prize For Her Invention", Latin Live


Xóchitl Guadalupe Cruz is Mexico’s most talked-about inventor right now.

"Meet Mexico's New Famous Inventor. She'll Finish Third Grade This Year" , WLRN

She even received a prize from a national scientific organization, el Reconocimiento ICN a la Mujer, or the ICN Recognition of the Woman, which according to the various news accounts she's the first child to win, and is typically given to adult scientists.

At least in the Spanish speaking press, many directly claim that this is a prize for inventing something:

Ella es Xóchitl, una niña chiapaneca que con sólo 8 años ya ha ganado un premio por ciencia nuclear gracias al invento que creó y con el que busca apoyar a su comunidad.

"Una niña mexicana ganó premio de ciencia nuclear por su invento", Excelsior

On the other hand, some people have expressed doubt, saying that recycled solar water heaters already existed.

Now, I can't imagine it would take a year for her to build, with the help of her family, something that had schematics readily available online, or that she'd receive a prize for it. But maybe it's possible.

Did she invent a solar water heater? And if she did, what aspect was innovative: cost, materials, efficiency, design, size?

  • To the perspective answerers, please only post answers based on stronger evidence than the evidence presented in the question. Answering based on no references (or no better references) will be removed as not-an-answer according to our standards.
    – Sklivvz
    Apr 12 '19 at 9:09
  • "Some people have expressed doubt." Do you have a link to what some of these people are saying? It would be easier to evaluate their doubt if we knew their exact objections. Apr 12 '19 at 17:53

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