Ball bearings 'used at Stonehenge'

Resource from: CBCC Likes:2937

Nov 19,2010

(November 19, 2010) Neolithic engineers may have used ball bearings in the construction of Stonehenge in Wiltshire, claim experts from the University of Exeter. Scientists showed how balls placed in grooved wooden tracks would have allowed the easy movement of stones weighing many tonnes. Nobody has yet explained successfully how the heavy slabs used to build Stonehenge more than 4,000 years ago were shifted from their quarries to Salisbury Plain. Some, the "bluestones", weighed four tonnes each and were brought a distance of 150 miles from Pembrokeshire, Wales. Attempts to re-enact the transporting of the blocks on wooden rollers or floating them on the sea have not proved convincing. The hard surfaces and trenches needed when using rollers would have left marks on the landscape, but none is there. Experts hit on their new theory after examining mysterious stone balls found near similar monuments in Aberdeenshire, Scotland. About the size of a cricket ball, they are precisely fashioned to be within a millimetre of the same size, suggesting they were meant to be used together rather than individually.

(CBCC)

【CBCC News Statement】
1.The news above mentioned with detailed source are from internet.We are trying our best to assure they are accurate ,timely and safe so as to let bearing users and sellers read more related info.However, it doesn't mean we agree with any point of view referred in above contents and we are not responsible for the authenticity. If you want to publish the news,please note the source and you will be legally responsible for the news published.
2.All news edited and translated by us are specially noted the source"CBCC".
3.For investors,please be cautious for all news.We don't bear any damage brought by late and inaccurate news.
4.If the news we published involves copyright of yours,just let us know.

Add to My Favorites

[Close the window]

Previous Seals and Lubricants for Mining and Minerals Processing by Fluid Seals
Next Brammer goes Greener with the Launch of New Company Car Scheme

BRIEF INTRODUCTION

Cnbearing is the No.1 bearing inquiry system and information service in China, dedicated to helping all bearing users and sellers throughout the world.

Cnbearing is supported by China National Bearing Industry Association, whose operation online is charged by China Bearing Unisun Tech. Co., Ltd.

China Bearing Unisun Tech. Co., Ltd owns all the rights. Since 2000, over 3,000 companies have been registered and enjoyed the company' s complete skillful service, which ranking many aspects in bearing industry at home and abroad with the most authority practical devices in China.