By the early twentieth century, carbon dating of Earth rocks and fossils had proven that the Sun was in existence and at temperatures warm enough to sustain life not for thousands of years, but for 3 billion.

在20世纪早期，地球岩石和化石的碳-14年代测定证实，太阳已经以够维持生命的温度存在了不是几千年，而是30亿年。

Well, I know we start by discussing the shortcomings of carbon dating.

我知道我们一开始 是讨论碳年代测定法的缺点。

Do you want to kick this off and tell us exactly what carbon dating is?

你想来做个开场为我们具体介绍一下什么是碳测定年代法吗？

Maussan cited carbon dating analysis by the National Autonomous University of Mexico that he said showed " these beings are around 1,000 years old."

莫桑引用了墨西哥国立自治大学的碳测年，说该显示“些遗骸已有1000年历史”。

He said carbon dating methods were used to link the footprint to the same time period as plant material found in the area.

表示通过碳年代测定法将迹与该地区发现的同时代植物化石进行了联系比较。

And as added proof, the bones of both have been carbon dated and this proves that they lived together.

作为附加证据，两者的骨头都做过碳同位素测年，也证明了它们曾一起生活。

But, the study noted, carbon dating of the comb failed to show its exact age.

但是，该研究指出，对梳子的碳年代测定未能表明其确切年份。

There have been many artefacts found over time in archaeological dig sites, that based on carbon dating should not have existed during that time.

长时间以来在古迹中，挖掘出土了很多古代遗物，基于碳-14年代测定的方法本不应该存在于那个时代。

There's going to be a lecture on carbon dating at the Natural Science Museum on Saturday.

周六自然科学博物馆有利用碳同位素测定年代的讲座。

The first breakthrough was the carbon dating.

首个突破是碳-14测定年代法。

Carbon dating has revealed that some specimens of Welwichia are upwards of 3,000 years old.

碳年代测定法显示，某些Welwichia标本的历史可追溯至3000多年前。

It's now been carbon dated from the 15th century.

它现在已经通过碳 dating 被确定为来自15世纪。

The carbon date The skeleton in 1969 reveals the woman had died 23,000 years ago.

1969年对骨骼进行的碳测定显示，名女性死于23000年前。

By sampling an elephant tusk from a point close to the skull, where the dentin layer is thin, the researchers were able to use carbon dating to measure how long ago the animal died.

通过从靠近头骨处取样大象獠牙，该处牙本质层较薄， 研究人员能够使用碳测年法来测量只动物多久之前死亡。

But when they gave the single dream, the fossil as it were, to these three different interpreters, the three different carbon dating machines, they all came up with completely different interpretations.

但当们把那个单一的梦境，就像是化石一样， 交给三个不同的解释者，也就是三种不同的碳测定年代机器时，它们得出了完全不同的解释。

One technique is to use radio carbon dating to establish the age of any organic materials in the sample This process relies on measuring the presence of carbon 14.

一种方法是使用放射性碳年代测定来确定样本中任何有机物质的年龄。个过程依赖于测量碳14的存在。

As far as I know, we might have to start carbon dating some of these people I know because they seem to go much, much faster.

据我所知，我们可能得对认识的某些人进行碳年代测定，因为们似乎衰老得快得多。

There have been many artifacts found over time in archeological dig sites, that based on carbon dating should not have existed during that time.

随着时间的推移，在考古挖掘现场发现了许多文物，根据碳测年法，些文物在那个时期不应该存在。

Legend says she was carved by St. Luke but carbon dating says she's only 800 years old.

传说说她是由圣卢克雕刻而成， 但碳测年表明她只有 800 岁。

Next, they turned to carbon dating for answers and found the bones were 400,000 years old.

接下来，们转向碳14测定法寻找答案，发现些骨头有40万年的历史。