42年黑暗:天王星的恐怖 [视频]
本视频探索了天王星极端而诡异的季节周期——每个极点长达42年的无尽黑暗与漫长白昼。揭示了这颗冰巨行星独特的轴倾角如何导致其成为太阳系中最极端的环境之一,以及它对人类未来探索意味着什么。
本视频探索了天王星极端而诡异的季节周期——每个极点长达42年的无尽黑暗与漫长白昼。揭示了这颗冰巨行星独特的轴倾角如何导致其成为太阳系中最极端的环境之一,以及它对人类未来探索意味着什么。
A new paper by Thomas Bloom, Will Sawin, Carl Schildkraut and Dmitrii Zhelezov disproves a well-known conjecture in additive combinatorics. The result shows there exist arbitrarily large finite sets A of real numbers where max(|A+A|,|AA|) ≤ |A|^{2-c}. The solution was achieved by humans using methods related to an earlier AI solution to the unit distance conjecture.
John Burn-Murdoch guest-hosted BBC's Radical podcast, speaking with geneticist Sir John Bell about recent and upcoming medical breakthroughs.