You want the outside contributor to feel like a natural fit for your readers.

The material components are a lodestone and a pinch of dust.

In the clear waters are 350 varieties of colourful corals, a magnet for wildlife.

Something that attracts... a lodestone is magnetic, it is where the compass points.

An electromagnet can switch its poles (by reversing its voltage) while a natural magnet cannot.

Our ancestors knew about the effects of magnetic fields produced by the only natural magnet - a mineral called lodestone.

All the fields of each loop of the coil line up so that the effect is that of a natural bar magnet.

Our ancestors knew about the effects of magnetic fields produced by the only natural magnet - a mineral called lodestone.

A natural magnet has two unique properties, the first of which is that iron filings will cling to it.

A natural magnet has two unique properties, the first of which is that iron filings will cling to it.

A flying apparatus with features of an aeroplane and of an airship made of amber, lodestone and other inventions.

It is very easy to make any electro-magnetic substance but a natural magnet can’t be found easily.

Surrounded by elaborate merchant houses and, in summer, packed with café tables, it is a natural magnet for tourists.

Surrounded by merchant houses, and in summer, packed of coffee tables, it is a natural magnet for tourists.

Surrounded by elaborate merchant houses and, in summer, packed with restaurant tables, it’s a natural magnet for tourists.