A member of the now-extinct hominid species Homo erectus engraved a geometric design on a sea shell nearly half a million years ago, long before the earliest evidence of comparable etchings made by ...

Glass allows for intricate details due to laser's precision. Experiment with power and speed for best results. Cork's porous surface offers deep etching opportunities. Clean beforehand and wipe after ...

Engraved patterns on the side of ostrich eggs dating back to the Stone Age could be the oldest form of written communication known to man, claims a new study. By Richard Alleyne and Richardalleyne 02 ...