Title text:
This dating is corroborated by the presence of stone tools at the site, rather than earlier and less effective helium ones.
Transcript:
Transcript will show once it’s been added to explainxkcd.com
Source: https://xkcd.com/3205/
Title text:
This dating is corroborated by the presence of stone tools at the site, rather than earlier and less effective helium ones.
Transcript:
Transcript will show once it’s been added to explainxkcd.com
Source: https://xkcd.com/3205/
Let’s time travel and take a look!