Procure Space ETF surged 64% YTD, outperforming the S&P 500, but recent volatility and technical cracks warrant caution. UFO's high expense ratio, concentrated holdings, and prevalence of negative ...

We’re always looking to harvest energy from diverse, nominally “free” sources such as wind, water, solar, and even less-dense possibilities such as vibration and friction. Then there are lightning ...

The standard way of protecting buildings (and their occupants) from lightning is pretty simple: You stick a lightning rod on the roof, and then some kind of conducting channel that takes the huge ...