A pure substance made from more than one type of element chemically bonded together. Elements bond in fixed ratios and so can be represented by a chemical formula. For example, sodium chloride has the ...

In everyday life, for example on food packaging, the word ‘pure’ usually means that something is in its natural state without anything added to it, like sweeteners or preservatives. Natural fruit ...

As America celebrates its 250th birthday this weekend, Meteorologist Kristen Currie dives into what gives fireworks their ...

Diamfab and other start-ups want to commercialize diamond wafers for demanding chip applications such as data centers, ...

In the 1970s, American Fireworks, a family-run pyrotechnics company in Hudson, Ohio, used a “home run box” to offer quick and ...

Designers are finding sustainable building solves close to home—in ancient practices and cutting-edge innovations alike.

Experts explain what attracts bugs indoors, why some species swarm, and the best ways to usher them back outside without harming them.

Bulleit Drops Its Oldest Rye Ever — 20 Years Old, Cask Strength, and Only 1,776 Bottles There are milestones in American ...

Keen’s fast and light alternative to the more traditional leather boot. Here’s how we got on with the Targhee Apex waterproof ...

Something on Pluto and one of Saturn’s moons, Titan, absorbs light in a way unexplained by anything in spectroscopic ...

Imagine an ordinary Tuesday. You wash your hair, put on deodorant, drink coffee, pack lunch in a plastic container and ...

Soil bacteria make cocktails of molecules that synergistically inhibit the growth of microbial pathogens — suggesting a ...