(Phys.org)—Although quantum theory can explain three of the four forces in nature, scientists currently rely on general relativity to explain the fourth force, gravity. However, no one is quite sure ...

The Planck scale is where general relativity and quantum mechanics should clash. It is the realm of the unfeasibly energetic and the unimaginably tiny. It is where the laws of nature are expected to ...

A recent discovery by William & Mary and University of Michigan researchers transforms our understanding of one of the most important laws of modern physics. The discovery, published in the journal ...

ON A human scale, an atom is inconceivably small. But size is relative. On the Planck scale—the smallest that physical theory recognises—atoms are huge. At this scale, named after Max Planck, the ...

The economy has been sputtering for years; it sure could use a boost. Planck-scale physics is the coming thing in basic science. How big a boost could the economy get from Planck-scale physics? A new ...

A high-tech version of a balance scale has just brought scientists a critical step closer toward a new and improved definition of the kilogram. The scale, called the NIST-4 watt balance, has conducted ...

If you divide the matter in the Universe into smaller and smaller constituents, you'll eventually reach a limit when you hit a fundamental, indivisible particle. All macroscopic objects can be divided ...

Both Albert Einstein and Louis de Broglie were dissatisfied with the type of quantum probabilities found in standard quantum mechanics. We have recently introduced a new formulation of quantum ...