For more than a century, gravity has been the stubborn outlier in physics, resisting every attempt to merge Einstein’s smooth space-time with the jittery world of quantum mechanics. A new wave of ...

Nernst's theorem—a general experimental observation presented in 1905 that entropy exchanges tend to zero when the temperature tends to zero—has been directly linked to the second principle of ...

I agree wholeheartedly with Jim Greaves (letter to editor, Dec. 5). Our situation is dire and in my opinion, our country is irreparably broken and the mess we all find ourselves in has been a long ...