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Garba said the evidence from Corlevo and Damanisi suggests Homo erectus entered Europe from the east or southeast, moving along the Danube River. It has been difficult to identify the age of places like Corolevo. The study dated the tools left by their makers on a riverbed by estimating when the layer holding the objects was buried under sediment. Matznutsen of Uhus University in Denmark described how scientists were able to date the prehistoric tools.
加尔巴说，来自科莱沃和达马尼西的证据表明直立人从东部或东南部进入欧洲，沿着多瑙河移动。很难确定科莱沃等地的年代。这项研究通过估计存放这些物品的地层被沉积物掩埋的时间来确定制造者在河床上留下的工具的年代。丹麦乌胡斯大学的马茨努森描述了科学家如何确定史前工具的年代。
He said cosmic rays from outer space are always passing through the Earth's atmosphere. When they do, they create particles that are smaller than atoms, such as neutrons and muons. These particles are so small that they pass through all sorts of materials. These particles react with minerals in rocks to produce radioactive nucleides, a class of atoms. The sediment was dated based on the ratio of two nucleides. This is possible because the two nucleides break down at different rates through the process of radioactive decay. Europe was later colonized by other human ancestor species, including Homo heidelbergensis and Neanderthals.
他说，来自外太空的宇宙射线总是穿过地球大气层。当它们穿过大气层时，它们会产生比原子更小的粒子，例如中子和μ子。这些粒子非常小，以至于它们可以穿过各种物质。这些粒子与岩石中的矿物质发生反应，产生放射性核素，即一类原子。沉积物的年代是根据两种核素的比例确定的。这是可能的，因为这两种核素在放射性衰变过程中以不同的速率分解。后来，欧洲被其他人类祖先物种殖民，包括海德堡人和尼安德特人。
Scientists say Homo sapiens evolved in Africa about 300,000 years ago. They arrived in large numbers in Europe around 40,000 to 45,000 years ago. The researchers suspect evidence of human occupation in Europe that is even older than Coralevo will be found. "The question is not if, but when we will find a site of similar or older age somewhere else in Ukraine, Romania, Bulgaria or Serbia," Garba said.
科学家说，智人大约在 30 万年前在非洲进化。大约在 4 万至 4.5 万年前，他们大量抵达欧洲。研究人员怀疑，欧洲的人类居住证据甚至比科拉列沃还要古老。“问题不在于我们是否能在乌克兰、罗马尼亚、保加利亚或塞尔维亚的其他地方找到类似或更古老的遗址，而是何时能找到，”加尔巴说。
I'm John Russell.
约翰·罗素为您报道。
加尔巴说，来自科莱沃和达马尼西的证据表明直立人从东部或东南部进入欧洲，沿着多瑙河移动。很难确定科莱沃等地的年代。这项研究通过估计存放这些物品的地层被沉积物掩埋的时间来确定制造者在河床上留下的工具的年代。丹麦乌胡斯大学的马茨努森描述了科学家如何确定史前工具的年代。
He said cosmic rays from outer space are always passing through the Earth's atmosphere. When they do, they create particles that are smaller than atoms, such as neutrons and muons. These particles are so small that they pass through all sorts of materials. These particles react with minerals in rocks to produce radioactive nucleides, a class of atoms. The sediment was dated based on the ratio of two nucleides. This is possible because the two nucleides break down at different rates through the process of radioactive decay. Europe was later colonized by other human ancestor species, including Homo heidelbergensis and Neanderthals.
他说，来自外太空的宇宙射线总是穿过地球大气层。当它们穿过大气层时，它们会产生比原子更小的粒子，例如中子和μ子。这些粒子非常小，以至于它们可以穿过各种物质。这些粒子与岩石中的矿物质发生反应，产生放射性核素，即一类原子。沉积物的年代是根据两种核素的比例确定的。这是可能的，因为这两种核素在放射性衰变过程中以不同的速率分解。后来，欧洲被其他人类祖先物种殖民，包括海德堡人和尼安德特人。
Scientists say Homo sapiens evolved in Africa about 300,000 years ago. They arrived in large numbers in Europe around 40,000 to 45,000 years ago. The researchers suspect evidence of human occupation in Europe that is even older than Coralevo will be found. "The question is not if, but when we will find a site of similar or older age somewhere else in Ukraine, Romania, Bulgaria or Serbia," Garba said.
科学家说，智人大约在 30 万年前在非洲进化。大约在 4 万至 4.5 万年前，他们大量抵达欧洲。研究人员怀疑，欧洲的人类居住证据甚至比科拉列沃还要古老。“问题不在于我们是否能在乌克兰、罗马尼亚、保加利亚或塞尔维亚的其他地方找到类似或更古老的遗址，而是何时能找到，”加尔巴说。
I'm John Russell.
约翰·罗素为您报道。
