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Ball bearings used to build Stonehenge

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Sanctuary S
Sanctuary Nov 19, 2010 08:49:36
Replying to moss

moss wrote:
Its only another theory but interesting nevertheless.......

"Scientists showed how balls placed in grooved wooden tracks would have allowed the easy movement of stones weighing many tons."

http://www.thisiswiltshire.co.uk/news/headlines/8675263.Ball_bearings_used_to_build_Stonehenge_says_expert/?ref=rss

Here it is again showing the set-up. Note that it's on VERY flat terrain with beautifully constructed materials made with modern machinery.

http://www.dailymail.co.uk/sciencetech/article-1330917/Stonehenge-builders-used-ball-bearings-giant-slabs-stone.html

N nigelswift
nigelswift Nov 19, 2010 09:06:50
Replying to Sanctuary

"The next stage in the project is to provide mathematical evidence of how much force would be needed to keep a stone moving."

I can tell him that for free and save him the computer time, the answer is almost none as a small child can keep a canal barge moving.

(But it's all academic as they couldn't lay the tracks fast enough to keep the stone moving.)