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coz the Germans found out some scientific type of rubber that can rub out coins too
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∙ 13y ago
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If you rub hard rubber with piece of wool what charge is on the piece of rubber?
Negative
How does rubber erase pencil marks?
the sap of rubber trees help erase graphite
What metal is used in pencil?
Graphite (carbon), wood and rubber for the eraser.
What is the name for the metal band that holds the rubber onto the pencil?
It is called the Ferrule
How does a rubber rub out?
The rubber rubs a fibe into the led and burns it so hard it burn s away that's why sometimes it leaves smudges
What is a pencil rubber?
A pencil rubber otherwise known as an eraser is used to rub out pencil marks on paper
How do you remove black color pencil from paper?
use a rubber (a very strong one!) and rub and rub and rub..........
What else can you use to rub out pencil without using a rubber?
nothing xoxo
When did rubber products become popular?
Rubber products first became popular in the last 1700's. In England, it was discovered that rubber was a good way to rub off pencil marks on paper. That is where the name, "rubber" came from.
Can you erase colored pencils?
If you rub hard enough, a regular eraser found on top of a pencil, or other kind of regular eraser will rub out colored pencil. If the colored pencil was drawn roughly on the paper, and pressed hard enough into the paper, the colored pencil cannot be rubbed out. You can try an ink eraser (the kind of eraser found on erasing ink pens), but it may or may not work.
First to add rubber to pencil?
The first person to put rubber on a pencil was Harret Tubbmien.
Why does rubber erase pencil?
Rubber has a high co-efficient of friction.
What is rubber made for?
at first the rubber is made to erase the pencil mark.
What is another name for pencil eraser?
rubber
Can you erase things with rubber?
Yes, we can erase pencil marks with rubber because erasers are made out of rubber
Metal ball and rubber ball?
Rub my metal balls or rubber balls.
If you rub hard rubber with piece of wool what charge is on the piece of rubber?
Negative
