Kiara Nirghin's project is a good case study in frugal science

Kiara Nirghin's drought project did not begin with a costly new machine. It began with a design constraint: could an absorbent material be made from inexpensive waste that was already available?

That is the appeal of frugal science. Affordability and local supply are treated as part of the invention, not as problems to solve after the technical work is finished.

It does not remove the need for rigorous testing. In fact, low-cost solutions need especially clear evidence so communities are not asked to accept weaker standards simply because the product is cheaper.

Should science competitions reward scalability and access as heavily as novelty?