We may receive a commission on purchases made from links. One tool you'll find stashed in all the best electrician's tool backpacks is a multimeter. Most modern multimeters are of the digital variety, ...

This video explains how LEDs (Light Emitting Diodes) function and why they are widely used in modern lighting and electronic displays. LEDs convert electrical energy into light through the movement of ...

Magnitude scales can be used to describe earthquakes so small that they are expressed in negative numbers. The scale also has no upper limit. Learn more about how we measure earthquake magnitude.

Senate Majority Leader John Thune (R-S.D.) has set up one vote Tuesday afternoon to reopen the government, giving Democrats only the opportunity to vote for or against a House-passed continuing ...

California voters are heading to the polls on Tuesday for the Nov. 4 special election on Proposition 50, a measure backed by legislative Democrats and Gov. Gavin Newsom that, if approved, would redraw ...

Another vote on stopgap funding to end the partial federal government shutdown failed Wednesday, with Illinois senators voting along party lines. Democratic Sens. Tammy Duckworth and Dick Durbin voted ...

Abstract: The pulse parameter-editable nanosecond pulse power supply (NPPS) based on all-solid-state Marx power topology is one of the critical excitation sources for studying the characteristics of ...

In the summer of 2008 I was happily working as a professor at Syracuse University when I received an unexpected phone call. For the previous year the American Enterprise Institute—one of the oldest ...

If you’ve driven through major Valley intersections, odds are good that you’ve seen the blue-green signs with big white letters saying “Yes on 409.” The number refers to Proposition 409, a ballot ...