Gold will not dissolve ia muriatic acid alone, although it will be attacked by chlorine. To dissolve it in muriatic acid, therefore, a substance must be added to liberate the chlorine. Peroxyd of ...

Common cotton is one of the forms of lignine, which is a compound of carbon, hydrogen and oxygen (the same as wood), but when subjected to the action of nitric acid, nitrogen enters into its ...

Scientific American is part of Springer Nature, which owns or has commercial relations with thousands of scientific publications (many of them can be found at www.springernature.com/us). Scientific ...

U.S. President Donald Trump has named 13 people to his panel of science advisers — and all but one is a leading technology ...

The arrival of AI-generated research papers marks a turning point that could radically accelerate discovery—or drown it in ...

Decades of data have suggested the universe is flat, much like an infinite plane. But a new analysis reveals deep flaws in ...

In 2017 NASA’s Hubble Space Telescope zoomed in on a comet as it passed around the sun. And then things took a more unusual ...

The COVID pandemic ushered mRNA vaccines into the spotlight, and the technology has even greater potential. Here’s what to ...

Perry Samson is a professor emeritus of atmospheric science at the University of Michigan and a fellow of the American Meteorological Society.

European Space Agency astronaut used an International Space Station treadmill to march 26.2 miles (42.2 kilometers) to the ...

Skin conditions such as psoriasis often flare up in the same spots throughout one’s life. Now scientists think they know why ...

The new study examined only brief interactions with chatbots. Dana Calacci, who studies the social impact of AI at ...