Forbes contributors publish independent expert analyses and insights. Edward Segal covers crisis-related news, topics, and issues. The fight against the raging and mutating Covid-19 in the U.S.

GULU, Uganda — The light bulb hanging from the ceiling flickered on and off, infuriating the technician in this remote Ugandan town as he checked the refrigerators filled with vaccine doses to confirm ...

Like any equipment, each piece of a power distribution system has a chance of failing at some point. Even if installed properly, there are several factors that can cause failures, such as extreme ...