are tranquillizers addictive?

Why were medics so sure that tranquillizers are not addictive? [...]

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The electric toothbrush and the sleeping draft

Clinical research into such matters as the relative effectiveness of different types of toothbrush,and the habutuative effect of sleeping pills,cannot be interpreted as crudely as many people think. [...]

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Another fool throws money at a stupid idea

In 1901 Marconi successfully received a radio signal beyond the horizon. [...]

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