There are generators with enough power for home backup that roll on wheels and technically are portable. But when we talk about “portable generators” we’re usually referring to models that are small ...

Scientists are learning how to turn the chill of outer space into a quiet source of electricity, using the night sky itself as a heat sink. By carefully managing how surfaces shed heat after dark, ...

Officers crawled through several metres of cramped ceiling vents at the Maximum Security Prison (MSP) in Arouca on Tuesday evening, recovering a massive stash of contraband hidden deep within the ...