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Initially, they were actually made of wood (even the ridges). Later on, they made the 'scrubbing' portion of the washboard with zinc. This was the main metal used up until the tail end of the 20th century. At that point, galvanized steel was the metal of choice. There are some washboards made with brass as the ridges, but they're not quite as common as the galvanized steel.
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How did colonial housewives wash clothes in 1740's?
Rocks and a creek! They used a large rock as if a washboard. Soap was from animal fats.
What elements are used in metals?
metals...
Can rocks clean clothes?
Basically, people wash clothes on rocks since they are a solid surface to rub against in order to get the dirt out of clothing. It is the same theory as the washboards that were used in the 1800s and later.
What can nonmetallic metals be used for?
There are no "nonmetallic metals", all metals are metallic by definition.
How are metals used in chemistry?
Metals are used in chemistry for coating of some metalloids and nonmetals
Can homogeneity be used to distinguish metals from non metals?
No, it can not be used. Every element has colour homogeneity.
What two metals are used as nuclear fules?
The two metals used are URANIUM-235 and BORON
What is reactivity of metals used for?
The reactivity of metals is used to transfer electricity without much electrical loss.
What metals and non metals are used in computers and electronic devices?
sulphur
Why are metals wires used to carry current?
Because metals are conductors.
Why isn't iron or other certain transition metals used in constructive instead of the alkali metals?
Iron is used !
What metals you can electroplate with copper?
We can electroplate most of the metals. The metals used in electroplating are steel, zinc, iron, etc.
