De Forest put a metal grid in the middle of the vacuum tube. By using a small input current to change the voltage on the grid, De Forest could control the flow of a second, more powerful current ...

President Donald Trump's metal tariffs could exacerbate that shortage, Currie said. Aluminum tariffs could also disrupt the grid by onshoring manufacturing of the energy-intensive metal ...

SANTIAGO, Feb 26 (Reuters) - Chile's power grid and major copper mines slowly came back online on Wednesday morning after a major outage hit the world's top producer of the red metal, with power ...

Trump's aluminum tariffs could also disrupt the grid by bringing manufacturing of the energy-intensive metal back to the U.S., Currie said. "If you think AI is power intensive, aluminum is a whole ...