3 possible reasons your toilet won't stop running and how to fix them

There are three likely culprits that can cause a toilet to run continuously — the float, flapper, or fill valve. Luckily, ...
Reuters

Congo to replace cobalt export ban with quotas from Oct 16

DAKAR, Sept 21 (Reuters) - The Democratic Republic of Congo will lift its ban on cobalt exports from October 16 and manage global supply by imposing annual export quotas, the country’s strategic ...
IFLScience

Why Do Some Toilets Have Two Flush Buttons?

Katie has a PhD in maths, specializing in the intersection of dynamical systems and number theory. She reports on topics from maths and history to society and animals. Katie has a PhD in maths, ...
The National Interest

Can Drones Replace Navy Destroyers? Yes and No

All in all, the expansion of USV use is a promising experiment that could ameliorate the US Navy’s force-structure woes—while amplifying US fleets’ combat power in a hurry. Over at Defense One last ...