Researchers make hardened wooden knives that slice through steak

The sharpest knives available are made of either steel or ceramic, both of which are man-made materials that must be forged in furnaces under extreme temperatures. Now, researchers have developed a potentially more sustainable ...

2,000-year-old nails 'may be tied to crucifixion'

Two Roman nails dating back 2000 years, found in the burial cave of the Jewish high priest who handed Jesus over to the Romans, may be linked to the crucifixion, an Israeli filmmaker has claimed.

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