科学与环境
Male lizard 'perfumes' may be more about rivalry than seduction
来源: Phys.org - latest science and technology news stories · 发布于
Animals communicate in ways that are sometimes obvious to us and sometimes almost completely hidden. Bright colors, songs and courtship displays are easy to notice. Chemical signals are different: an animal can leave a message behind long after it has moved away.
Animals communicate in ways that are sometimes obvious to us and sometimes almost completely hidden. Bright colors, songs and courtship displays are easy to notice. Chemical signals are different: an animal can leave a message behind long after it has moved away.
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The ELT can probe ultra-diffuse galaxies and their dark matter mysteries
We've been waiting a long time for the Extremely Large Telescope's first light, scheduled for March 2029. Telescopes this large, powerful and costly always have multiple science goals, and that's true for the ELT. One of its science goals is to study fundamental aspects of the un
Phys.org - latest science and technology news stories ·
Did early humans collect keepsakes 500,000 years ago?
Most of us are familiar with the urge to pick up a seashell from the beach or keep a stone from a hiking trip. The object itself may be ordinary, but to the person who keeps it, it serves as a reminder of a particular moment, place or person. Where did this behavior come from? Di
Phys.org - latest science and technology news stories ·
Some regions may already be living in a 1.5°C warmer world
Regions worldwide may have already experienced around 90%–94% of the warming expected when the global average reaches 1.5°C above preindustrial levels, and 65%–76% of that expected at 2°C of warming. The findings, published in Nature Climate Change, suggest that regional warming
Phys.org - latest science and technology news stories ·
A stellar odd couple at an unusual stage of evolution
Most of the stars in the Milky Way are what we might call normal stars. They're main sequence stars like our sun, meaning they're doing what most people probably think stars do: shining as they fuse hydrogen atoms into helium atoms on a vast scale.
Phys.org - latest science and technology news stories ·
Upgraded microscope can now watch individual quantum particles in motion
Energy can be carried in a number of ways: by electrons, the particles that underpin all modern electronics, as well as by quasiparticles, the results of different particles interacting with one another at the quantum level. Columbia chemist Milan Delor has been watching these di
Phys.org - latest science and technology news stories ·