DAR ES SALAAM โ€” A rescue robot designed to access disaster zones beyond the reach of emergency workers, a low-cost cooling fan for low-income households and an excavator prototype have propelled three Tanzanian secondary schools onto the continental stage after their creators won a national Science, Technology, Engineering and Mathematics (STEM) innovation competition.

"We aggregate wires to encourage regional discovery, sending readers directly back to the original source to explore full coverage."

This is a normalized overview of the breaking feed event. The complete, official release detailing all points, background context, and statements remains hosted by the original publisher.