Perfectly clear ice spheres are nifty but can be a bit tricky to make without an apparatus. [Seth Robinson] crafted a copper ice press to make his own. Copper is well-known for its thermal ...

Copper casting alloys are produced using the casting process wherein a liquid material is poured into a mold containing a hollow cavity of a desired shape. Then the liquid is allowed to solidify. The ...

The Tentative Lists of States Parties are published by the World Heritage Centre at its website and/or in working documents in order to ensure transparency, access to information and to facilitate ...