Very little. The earliest pens had their graphite core wrapped in leather or string; but already in the mid-sixteenth century the wooden pencil like the one we still have today was invented. And the pure, solid graphite core has over time been replaced by a core of graphite powder mixed with clay.
It appears that by the 1700s some "modern" lead pencils were being created in Germany, but it is more likely that pencils of this period were graphite in some sort of wrapping such as paper, string or encased in a tube which could be wood. You can find more info at: From: http://www.earlyofficemuseum.com/pencil_history.htm
new zealand
No. Pencils were not invented in that time. They did wrap graphite in string to use like a pencil. The first pencil was invented in 1666 in Nuremburg, Germany.
for 99 years
around 1500 maybe before
Venus Pencils was created in 1905.
Pencils of Promise was created in 2008.
sumayyah
Electricity is not made by pencils: Electricity can pass through pencils since they are made using graphite which is a good conductor.
Yes, pencils have been around since the Middle Ages
6.02 x 10^23. A mole will never change.
No. They were first created in Europe.
Colored pencils were created around 1920 by A.W Faber Company, located in Germany. Don't we all just love colored pencils? :D
created ticonderoga pencils
Both supply and demand must be changing, and not necessarily in the same direction. The fact that the quantity of something is changing tells you that the supply has changed. The fact that the value of something is changing in the same direction as its changing supply tells you that the demand must also be changing. For instance; Imagine that you have 1000 pencils to sell to 1000 people for $10 per pencil (everone needs one and only one, so they will pay). If you lost half of your pencils, the supply has decreased and now stands at 500 pencils. The only way for the price of the pencils ($10 dollars each) to decrease (as did the supply/quantity), is for the number of people who want pencils (demand) to also decrease to less than 500 people. If the demand didn't change, the value of the pencils would have to rise (the opposite of what the supply did), since there would be more people who want pencils, than there are pencils to sell them.
Graphite duhhh go back to 7th grade! imrpovement: lead used to be used in pencils, but since it is poisonous they now use graphite.
Pencils are filled with Graphite, they used to be filled with led but since led is Poisonous they replaced the led with graphite.