问题究竟出在哪里？
问题究竟出在哪里？ 肖像。图片提供：Pedro Barrios Hita，HHU Pedro Barrios Hita 谈用实数重新表述量子力学时，究竟会发生什么 编者按 接触过复数的人都知道，一个复数可以用两个实数来表…
Where’s the Catch?
Where’s the Catch? Portrait. Credit: Pedro Barrios Hita, HHU Pedro Barrios Hita on what really happens when you try to write quantum mechanics with real numbers Editor’s Note Anyone familiar with complex numbers knows they can be described using two real numbers. The extra ingredient is the imaginary unit, i, defined by i² = −1.
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来自星际的第一种糖
星际之间的第一种糖 Izaskun Jiménez-Serra 博士在耶韦斯天文台 40 米射电望远镜前。图片提供：西班牙瓜达拉哈拉耶韦斯天文台 Izaskun Jiménez-Serra 讲述在银河系中心附近发现一种脆…
The First Sugar Between the Stars
The First Sugar Between the Stars Dr. Izaskun Jiménez-Serra at the Yebes 40m telescope. Image credit: Yebes Observatory (Guadalajara, Spain) Izaskun Jiménez-Serra on finding a fragile molecule near the heart of the galaxy, and what it may have carried to the early Earth Editor’s Note Before stars were born, before the Sun ignited, before planets
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写在大地上的文明
写在大地上的文明 书籍封面：《Amazônia: Os Geoglifos e a Civilização Aquiry》，Alceu Ranzi 与 Martti Pärssinen 著 · Massiambooks/…
Civilization Written Into the Land
Civilization Written Into the Land Amazônia: Os Geoglifos e a Civilização Aquiry, by Alceu Ranzi and Martti Pärssinen · Massiambooks/Officio, 2021 On Our Bookshelf: Amazônia: Os Geoglifos e a Civilização Aquiry, by Alceu Ranzi and Martti Pärssinen Editor’s Note Before satellites and laser scans confirmed a civilization of possibly millions once thrived in the western
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岁月的冰川与山岩
Saumya Kesurvala · 摄影：Robert Tarasek 邂逅 | 摄影 岁月的冰川与山岩 Saumya Kesurvala 谈群山与冰川如何让他重新认识自己，找回内心的方向 风景摄影 · 邂逅 · Ou…
Among Mountains and Glaciers
It was late February, winter’s final lap before it annually withdraws itself from this land of fire and ice. Like its landscapes, Icelandic winters are just as dramatic and extreme. Some days it would feel as if you were walking in a pristine paradise and other days as if both the sky and the land wish to brutally devour you by…
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雪中起舞
Jose Manuel Grandío 正在拍摄水鸟。自拍照。© Jose Manuel Grandío 邂逅 | 摄影 跃动与翻转 Jose Manuel Grandío 讲述他如何拍下一只白鼬在新雪中“起舞” 野生动…
Twist and Jump
The stoat in the photograph above is doing what scientists call dancing. They have witnessed stoats (Mustela erminea) engaging in similar displays on many occasions, although opinions are divided about what motivates the leaps and twists. Sometimes the dances are performed in front of a rabbit or a large bird in a seeming…