At one time tens or even hundreds of years might have passed between a scientist’s discovery of a potentially useful fact or method and its use by a wide range of other people. Nowadays, the process is much quicker. This is partly because research is often very expensive and there is pressure to find a commercial use for an invention to help to pay for new research. Modem methods of mass production and global advertising also mean that new products can become popular very quickly.
Hundreds of years ago, news about new products travelled very slowly. Today, advertising is aimed at individual markets and ensures that as many people as possible are aware of what is available.
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