Poly speed dating questions

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They did not have the benefit of cheap, off the shelf, mass produced batteries. Bronze is a relatively hard alloy of copper and tin, better suited for the purpose than the much softer copper enabling improved durability of the weapons and the ability to hold a cutting edge.

For many years the telegraph, and later the telephone, industries were the only consumers of batteries in modest volumes and it wasn't until the twentieth century that new applications created the demand that made the battery a commodity item. The use of bronze for tools and weapons gradually spread to the rest of the World until it was eventually superceded by the much harder iron.

First, a single excavated site, Çatalhöyük, with large amounts of data that cover part of the Neolithic sequence will be used as a laboratory for testing hypotheses about the causes of cognitive change.

Second, specific measures of the cognitive changes are proposed.

Tip #3: Match the question you ask to the current situation you’re in.

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