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直布罗陀发现尼安德特人使用的缺氧加热室

2024-11-27 15:51 by 太空谜案1

所有文化与文明,无论多么原始,由于对于机能特性或药用需求而从不同植物取得胶水、树脂和焦油,尼安德特人也不例外。尼安德特人通常使用桦木焦油或白樺魚作为粘合剂粘合石块,甚至用作咀嚼物,可能是作为药用。但是尚不清楚他们如何才能获得这种焦油。理论工作可分为两种方法:一种是简单而无效的方法,通过露天燃烧取得桦树皮,另一种更复杂的方法则需要把桦树片放在缺氧的环境中加热。现在科学家报告在直布罗陀发现了一个被用于缺氧加热室的洞穴。由于沙丘的快速推进,该遗迹已被沙丘封住,因此才能保存过去人类活动的真实踪迹。科学家称,“我们已经灭绝的表亲并不非是人们想象中的野蛮人类。”尼安德特人已被证明具有认知能力,正如本研究所得出的结论那样,该研究显示他们在制造树脂作为粘合剂,并将石尖固定在矛柄上的工业流程掌握。

https://www.sciencedirect.com/science/article/pii/S0277379124005274?via%3Dihub
https://www.eurekalert.org/news-releases/1066177?language=chinese

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直布罗陀发现尼安德特人使用的缺氧加热室

2024-11-27 15:51 by 太空谜案1

所有文化与文明,无论多么原始,由于对于机能特性或药用需求而从不同植物取得胶水、树脂和焦油,尼安德特人也不例外。尼安德特人通常使用桦木焦油或白樺魚作为粘合剂粘合石块,甚至用作咀嚼物,可能是作为药用。但是尚不清楚他们如何才能获得这种焦油。理论工作可分为两种方法:一种是简单而无效的方法,通过露天燃烧取得桦树皮,另一种更复杂的方法则需要把桦树片放在缺氧的环境中加热。现在科学家报告在直布罗陀发现了一个被用于缺氧加热室的洞穴。由于沙丘的快速推进,该遗迹已被沙丘封住,因此才能保存过去人类活动的真实踪迹。科学家称,“我们已经灭绝的表亲并不非是人们想象中的野蛮人类。”尼安德特人已被证明具有认知能力,正如本研究所得出的结论那样,该研究显示他们在制造树脂作为粘合剂,并将石尖固定在矛柄上的工业流程掌握。

https://www.sciencedirect.com/science/article/pii/S0277379124005274?via%3Dihub
https://www.eurekalert.org/news-releases/1066177?language=chinese

#科学

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But Telegram says people want to keep their chat history when they get a new phone, and they like having a data backup that will sync their chats across multiple devices. And that is why they let people choose whether they want their messages to be encrypted or not. When not turned on, though, chats are stored on Telegram's services, which are scattered throughout the world. But it has "disclosed 0 bytes of user data to third parties, including governments," Telegram states on its website. Update March 8, 2022: EFF has clarified that Channels and Groups are not fully encrypted, end-to-end, updated our post to link to Telegram’s FAQ for Cloud and Secret chats, updated to clarify that auto-delete is available for group and channel admins, and added some additional links. In a statement, the regulator said the search and seizure operation was carried out against seven individuals and one corporate entity at multiple locations in Ahmedabad and Bhavnagar in Gujarat, Neemuch in Madhya Pradesh, Delhi, and Mumbai. The company maintains that it cannot act against individual or group chats, which are “private amongst their participants,” but it will respond to requests in relation to sticker sets, channels and bots which are publicly available. During the invasion of Ukraine, Pavel Durov has wrestled with this issue a lot more prominently than he has before. Channels like Donbass Insider and Bellum Acta, as reported by Foreign Policy, started pumping out pro-Russian propaganda as the invasion began. So much so that the Ukrainian National Security and Defense Council issued a statement labeling which accounts are Russian-backed. Ukrainian officials, in potential violation of the Geneva Convention, have shared imagery of dead and captured Russian soldiers on the platform. Ukrainian President Volodymyr Zelensky said in a video message on Tuesday that Ukrainian forces "destroy the invaders wherever we can."
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