Construction Secrets of the Original Great Wall

Video
UNEARTHED
http://www.sciencechannelgo.com
The first Great Wall was built from mud and reeds over 2,000 years ago. As warfare developed, the wall had to be improved and strengthened.

Watch full episodes of your favorite Science shows:
http://www.sciencechannelgo.com

Subscribe to Science Channel:
http://bit.ly/SubscribeScience

Follow Science Twitter:

Or join us on Facebook:
https://www.facebook.com/ScienceChannel

Check out the all new seeeker.com:
http://www.seeker.com/

Articles You May Like

Ouch! Don’t Cut that! | How It’s Made | Science Channel

Leave a Reply

Your email address will not be published. Required fields are marked *