Bahan terkeras di dunia terbaru diumumkan setiap beberapa tahun sekali. Tapi merebut posisi teratas tidaklah mudah. Jadi, apakah ada yang lebih keras daripada batu berlian?
- Postdoctoral research associate, University of Cambridge
A new “world’s hardest material” is proclaimed every few years – but taking the top spot from diamond isn’t easy.
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