Why Do Scissors Have Two Blades?

More fun facts

• Scissors have two metal blades that meet and cut whatever is between them when you squeeze the handles.
• Scissors usually have blades shorter than 6 inches. Bigger ones are called shears.
• The earliest known scissors appeared in the Middle East about 3,000 to 4,000 years ago and are called spring scissors.
• Spring scissors had two bronze blades joined at the handles by a thin, curved strip of bronze that pushed them together and sprang them apart.
• Steel shears built the same springy way are still used to cut wool from sheep.
• Scissors with a pivot between the tips and the handles were used in ancient Rome, China, Japan and Korea.
• Children's scissors have dull blades for safety, because they only need to cut paper.
• Pinking shears have notched blades that cut cloth with a wavy edge.

Sources: encyclopedia.com