Can You Melt Woods?

Wood does not melt. Right? We burn wood to produce energy. Wood is a natural composite made up of cellulose, lignin and water. If you heat wood, during the process the water boils first and evaporates. Then the lignin and cellulose. Both lignin and cellulose which are...

Why Silver Turns Black?

Silver is a soft, white chemical element with the symbol Ag with atomic number 47. Silver is a soft , white lustrous transition which is found in the earth’s crust in the pure and free elemental form, as an alloy with gold and other metals.  It is used for jewellery...

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