How to Make a Low-Cost Air Purifier to…
A box fan, air filters and the box in which they…
A box fan, air filters and the box in which they…
Engineers are certainly not new to developing low-cost equipment for use…
COVID-19 has brought about numerous, devastating changes to people’s lives globally.…
Some of the world’s impoverished countries and overlooked, underserved communities are…
Editor’s note: This article is a reprint of a page that…
Foreign aid organizations may be under pressure to “decolonize,” as the…
Three startups emerged as winners of the Indian segment of the…
The bamboo fronds above a Vietnamese farming community sparked the idea…
Charcoal has been a part of water treatment for at least…
Editor’s note: The U.K. biometrics startup Simprints is developing ways of…