Search results for 4-D printing

Nanomaterials Oct 3, 2022

World's whitest paint now thinner than ever, ideal for vehicles

The world's whitest paint—seen in this year's edition of Guinness World Records and "The Late Show With Stephen Colbert"—keeps surfaces so cool that it could reduce the need for air conditioning. Now the Purdue University ...

Earth Sciences Jul 22, 2022

Balancing act: Can precariously perched boulders signal long-term earthquake risk?

The trouble with big earthquakes is that their subterranean root systems can lurk for centuries or millennia before building enough energy to explode. Among many places, this is true of the New York City area, where scientists ...

Space Exploration Jun 29, 2022

Swarm of tiny swimming robots could look for life on distant worlds

Someday, a swarm of cellphone-size robots could whisk through the water beneath the miles-thick icy shell of Jupiter's moon Europa or Saturn's moon Enceladus, looking for signs of alien life. Packed inside a narrow ice-melting ...

Astronomy Jun 16, 2022

There could be four hostile civilizations in the Milky Way, researcher speculates

In 1977, the Big Ear Radio Telescope at Ohio State University picked up a strong narrowband signal from space. The signal was a continuous radio wave that was strong in intensity and frequency and had many expected characteristics ...

Biotechnology Jun 6, 2022

New technology protects authenticity of engineered cell lines

Advances in synthetic biology and genome editing have led to a growing industry to develop customized cell lines for medical research. These engineered cell lines, however, can be vulnerable to misidentification, cross-contamination ...

Astronomy May 26, 2022

New ultra-faint dwarf galaxy discovered

Astronomers from the University of Arizona (UA) and elsewhere report the discovery of a new ultra-faint dwarf galaxy. The newfound galaxy, designated Tucana B, is the first quenched and isolated object of this type identified ...

Plants & Animals Apr 29, 2022

Honeybees join humans as the only known animals that can tell the difference between odd and even numbers

"Two, four, six, eight; bog in, don't wait."

Mathematics Mar 14, 2022

Are conferences worth time and money?

Every year, hundreds of thousands of scientists spend tens of billions of dollars to organize and attend conferences.

Space Exploration Feb 28, 2022

NASA selects futuristic space technology concepts for early study

An astronaut steps into a body scanner and, hours later, walks on Mars in a custom-made spacesuit, breathing oxygen that was extracted from Mars' carbon dioxide-rich atmosphere. On Venus, an inflatable bird-like drone swoops ...

Materials Science Feb 21, 2022

New material offers remarkable combo of toughness and stretchiness

Researchers have created new materials that are very stretchable and extremely tough.

page 4 from 40