ScienceDaily: Strange Science News |
- Hubble finds early, massive galaxies running on empty
- Human learning can be duplicated in solid matter
- Tube-shaped robots roll up stairs, carry carts, and race one another
- Winged microchip is smallest-ever human-made flying structure
- Earless worms 'listen' through their skin
- Unveiling galaxies at cosmic dawn that were hiding behind the dust
- Blowing up medieval gunpowder recipes
- Gigantic cavity in space sheds new light on how stars form
| Hubble finds early, massive galaxies running on empty Posted: 22 Sep 2021 09:19 AM PDT When the universe was about 3 billion years old, just 20% of its current age, it experienced the most prolific period of star birth in its history. But when NASA's Hubble Space Telescope and the Atacama Large Millimeter/submillimeter Array (ALMA) in northern Chile gazed toward cosmic objects in this period, they found something odd: six early, massive, 'dead' galaxies that had run out of the cold hydrogen gas needed to make stars. Without more fuel for star formation, these galaxies were literally running on empty. |
| Human learning can be duplicated in solid matter Posted: 22 Sep 2021 09:18 AM PDT Researchers have found that learning -- a universal feature of intelligence in living beings -- can be mimicked in synthetic matter, a discovery that in turn could inspire new algorithms for artificial intelligence (AI). |
| Tube-shaped robots roll up stairs, carry carts, and race one another Posted: 22 Sep 2021 09:18 AM PDT Researchers have designed a 4D-printed soft robot that self-assembles when heated and can take on challenging tasks like rolling uphill and navigating a bumpy and unpredictable landscape. |
| Winged microchip is smallest-ever human-made flying structure Posted: 22 Sep 2021 09:18 AM PDT By studying the aerodynamics of wind-dispersed seeds, researcher developed a flying microchip (or 'microflier') that catches the wind and passively flies through the air. Packed with ultra-miniaturized technology, including sensors and wireless communication capabilities, these microfliers could be used to monitor air pollution, airborne disease and more. |
| Earless worms 'listen' through their skin Posted: 22 Sep 2021 09:18 AM PDT A species of roundworm that is widely used in biological research can sense and respond to sound, despite having no ear-like organs. |
| Unveiling galaxies at cosmic dawn that were hiding behind the dust Posted: 22 Sep 2021 09:18 AM PDT While investigating the data of young, distant galaxies observed with the Atacama Large Millimeter/submillimeter Array, astronomers noticed unexpected emissions coming from seemingly empty regions in space that, a global research team confirmed, came actually from two hitherto undiscovered galaxies heavily obscured by cosmic dust. This discovery suggests that numerous such galaxies might still be hidden in the early Universe, many more than researchers were expecting. |
| Blowing up medieval gunpowder recipes Posted: 22 Sep 2021 09:13 AM PDT First used for battle in China in about 900 A.D., gunpowder spread throughout Eurasia by the end of the 13th century, eventually revolutionizing warfare as a propellant in firearms and artillery. Meanwhile, master gunners tinkered with gunpowder formulas, trying to find the ideal concoction. Now, researchers have recreated medieval gunpowder recipes and analyzed the energies released during combustion, revealing that the evolution of the perfect powder was a slow, trial-and-error process. |
| Gigantic cavity in space sheds new light on how stars form Posted: 22 Sep 2021 06:09 AM PDT Astronomers have discovered an enormous cavity in space while mapping interstellar dust. The sphere-shaped phenomenon may explain how supernovae lead to star formation. |
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