Physicists long believed time was a basic feature of the universe. But it may just emerge from cosmic information.

The way time ticks forward in our universe has long stumped physicists. Now, a new set of tools from entangled atoms to black ...

Quantum mechanics has always carried a quiet tension. At its core, the theory allows particles to exist in many states at ...

Wormholes are often imagined as tunnels through space or time—shortcuts across the universe. But this image rests on a ...

Work through an LR circuit problem focusing on time behavior and power. Learn how the time constant 𝜏 = 𝐿 / 𝑅 τ=L/R controls current growth/decay, and how power changes over time using 𝑃 = 𝐼 2 𝑅 ...

Analyze an uphill skier problem using work, energy, and power principles. See how gravitational potential energy, applied force, and friction determine the required work and power, and learn how speed ...

Record any incoming material variation. This included the square tube’s straightness, edge prep (the saw cut quality), as ...

While it has become a word, laser used to be an acronym: “light amplification by stimulated emission of radiation”. But there is an even older technology called a maser, which is the ...

How much fresh water is in the United States? It's a tough question, since most of the water is underground, accessible at ...

The twin reactors of Hinkley Point C in Somerset will form the first nuclear power plant built in the UK for 30 years.

The restart of classes at Brown comes a month after a 48-year-old former student opened fire inside a campus engineering building on December 13, killing two people.