Precious metals like palladium and platinum are often used as chemical catalysts, but they’re expensive. Scientists may have just found a cheaper alternative.

Neuroscientist Karen Konkoly is a lucid dreamer. When she’s asleep and immersed in a dream, she knows that she is, in fact, ...

An Atlanta dietitian offers an assessment of the new Dietary Guidelines for Americans, unveiled recently by the Trump administration, which flips the food pyramid on its head.

Kennedy, during a press briefing at the White House, remarked on the look of the inverted food pyramid and claimed that the model “was actually upside-down before and we just righted it.” Buzz: ...

You probably see the dollar bill every day, but have you ever thought about the symbols on the dollar bill and what they mean? Money mysteries There’s a good chance that you’re currently walking ...

And while we know a lot about these pyramids, new discoveries are being made all of the time thanks to advances in technology and the addition of other scientific tools. However, there are some people ...

Rectangular prisms are polygons with an two identical rectangle end sections and four identical rectangular faces along the length. When the faces of the prism are all at right-angles to each other, ...

Somer G. Anderson is CPA, doctor of accounting, and an accounting and finance professor who has been working in the accounting and finance industries for more than 20 years. Her expertise covers a ...

IIIF provides researchers rich metadata and media viewing options for comparison of works across cultural heritage collections. Visit the IIIF page to learn more. This plastic model has a white ...

Photo courtesy the Complex of Landscape Parks of the Wielkopolska Voivodeship. A pair of ancient tombs have been found in Poland that point to a distinctive Stone Age culture famous for earthen mounds ...

9.25 x 2.25 x 2.5 in. (23.5 x 5.7 x 6.4 cm.) Subscribe now to view details for this work, and gain access to over 18 million auction results. Purchase One-Day Pass ...

This media is in the public domain (free of copyright restrictions). You can copy, modify, and distribute this work without contacting the Smithsonian. For more information, visit the Smithsonian's ...