Category
Science & Tech
Discoveries and inventions for good.
3 stories
Latest
Teenager invents cheap water filter that removes 99% of contaminants
Built from locally available materials, the design is being shared freely with rural communities.
Lagos, Nigeria • Jul 3, 2026 • 5 min read
Free offline AI tutor helps rural students pass their exams
Running on cheap tablets with no internet, it has reached thousands of remote classrooms.
Jaipur, India • Jul 3, 2026
Students design a $20 prosthetic hand that anyone can 3D-print
Open-source files have already helped hundreds of people regain everyday independence.
Nairobi, Kenya • Jul 3, 2026