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What else can I help you with?
Do they use lead or graphite for mechanical pencils?
Mechanical pencils, like the regular kind of pencils, use graphite.
Who invented lead for mechanical pencils?
Conrad Gessner, a Swiss naturalist and physician, is credited with inventing the lead for mechanical pencils in the 16th century. However, the "lead" in mechanical pencils is actually made of a mixture of graphite and clay, not actual lead.
Do mechanical pencils use energy?
Mechanical pencils themselves do not need any energy in the forms of battery or electricity. However, mechanical pencils do need human energy to work. We need to add lead and push lead out; they do not do this on their own.
Why do all pencils have numbers on them?
because it tells you what kind of lead just like for mechanical pencils
Should I buy mechanical or wooden pencils?
Mechanical pencils can be used over and over again by simply replacing the lead, thus possibly saving money. The lead in a mechanical pencil, depending on the width, could be either more or less likely to break. When it comes down to it, it's really just a matter of preference.
How long do mechanical pencils last?
A life time if you have lead.
Can mechanical pencils lead kill you?
No, the lead in mechanical pencils is actually a mix of graphite and clay, not the toxic substance lead. Ingesting a small amount of graphite is not harmful, but it's still best to avoid consuming it.
Do mechanical pencils use lead?
Yes. All pencils use lead - not the element, but a graphite and clay mixture molded into a long narrow strip.
Where do you get lead pencils?
any store really
Are lead from pencils poisonous?
Lead pencils do not actually contain lead; they are made of graphite. Graphite is not toxic to humans, so there is no risk of lead poisoning from using pencils. However, ingesting graphite or pencil fragments can cause mechanical irritation in the digestive tract.
The lead in pencils really isn't made of lead?
Yes. It is graphite
How do you retract the lead in mechanical pencils?
Hold the button that makes lead come out and gently push the lead back in at the same time,
