Scientists Discover Oldest Known Nano-Structures In Ancient Artifacts In Tamil Nadu - The Sikh Times
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Scientists Discover Oldest Known Nano-Structures In Ancient Artifacts In Tamil Nadu

New Delhi: November 21, 2020 Scientists have discovered the oldest known human-made nano-materials in the “unique black coatings” of ancient pottery shards – dated to 600 BC – unearthed from an archeological site in Keeladi, Tamil Nadu.The research, published recently in the journal Scientific Reports, revealed that these coatings are made of carbon nanotubes (CNTs) which have enabled the layer to last more than 2600 years, raising questions on the tools used during those periods to achieve high temperatures for making earthenwares.

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