Fact : Heard of these?

1. The plastice things on the end of the shoelaces are called aglets.
2. The ridges on the sides of coins are called reeding or milling.
3. Ballistics is the science that deals with the motion of projectiles like bullets for example.
4. Cannibalism, or the practice of eating human flesh, is also called anthropophagy.
5. A single grass plant can have over 100 km of roots. The roots make up a dense mat close to the surface, which helps to keep the grassland soil in place. If the grass plants are removed, the soil quickly dries out and is easily blown away.
6. You can give in comment. I will add
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