An update to an experiment run by Henry Cavendish in 1773 could be a cheaper and faster way to spot a potential dark matter ...

Each study adds a piece to the puzzle of scientific knowledge. But any one study on its own doesn’t tell you all that much.

The simple experiment setup. Image via Wiki Commons. In 1927, physicist Thomas Parnell poured hot pitch into a funnel at the ...

Explore 25 thought experiments that challenge reality, from simulations to brains in vats. Question existence, identity, and ...

Imagine asking the biggest, most fundamental question of all: what is reality? How would you go about answering it? If you took the scientific approach, you'd go down to the smallest indivisible ...

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This article is an extended version of the article “The double-slit experiment” that appeared in the September 2002 issue of Physics World (p15). It has been further extended to include three letters ...

What is the most beautiful experiment in physics? Robert P Crease invites your suggestions Small wonder: this STM image of an oval-shaped array of iron atoms on a copper surface is a real experimental ...