Mexico cave with evidence of early humans closed to visitors

Tourists or locals visiting a cave in north-central Mexico could endanger what is purported to be some of the earliest evidence of human presence in North America, archaeological authorities said Thursday.

The varnishing point: Where science meets art

In 2014, the art conservation world was thrown into chaos when the company producing MS2A varnish shut down. No one else had the technical knowledge to continue making the go-to varnish for art conservators worldwide.

Experts find early ocher mine in Mexican underwater caves

Experts and cave divers in Mexico's Yucatan peninsula have found ocher mines that are some of the oldest on the continent, which could explain why ancient skeletons were found in the narrow, twisting labyrinths of now-submerged ...

Nanomaterial gives robots chameleon skin

A new film made of gold nanoparticles changes color in response to any type of movement. Its unprecedented qualities could allow robots to mimic chameleons and octopi—among other futuristic applications.

Rijksmuseum given unique painting to remember virus victims

Amsterdam's Rijksmuseum will display a famous 16th-century painting donated to commemorate victims of the coronavirus when it re-opens next week, almost three months after closing its doors, the museum said Wednesday.

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Paint

Paint is any liquid, liquefiable, or mastic composition which after application to a substrate in a thin layer is converted to an opaque solid film. One may also consider the digital mimicry thereof. It is most commonly used to protect, color or provide texture to objects.

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