The contrary is true. Metal ores commonly exist as a stone-like material. And certain plants absorb specific metals from the general soil, and are used as indicators for prospecting. Nickel is one such metal. In antiquity, burning plant material was the main source for the alkalies such as potassium.
It is because the stone and wood is too strong for wire to be pulled out.
No, wires cannot be drawn out of wood because wood is not a suitable material for making wires. Wires are typically made from metals such as copper, aluminum, or steel due to their conductivity and malleability, which wood lacks.
wires cannot be drawn from wood because they are brittle
first it was made of stone then, it was made of metals and wood
first it was made of stone then, it was made of metals and wood
Bridges can be built of many different materials including stone, concrete, wood and metals.
There are a lot of reasons:Use the wood from the treesGold/precious metals and stone minesFarmingThese are your basic ones.
Wires may only be drawn from ductile (malleable) materials. By the definition of wire, it must be of metal, though some solder wires contain a core of rosin.
A block of pumice stone, an iceberg, a log of wood, and so on. Thanks to H Z below, I never even thought of styrofoam.
Cro-Magnon did not use metals. They would have had weapons and tools made of stone, bone and wood. Most knives of any sort would have been made of stone such as flint.
Some spears and hand axes were made out of stone and wood
Carbon dating is typically used on organic materials containing carbon, such as wood, bone, cloth, and paper. Metals cannot be directly carbon dated because they do not contain carbon.