What was the first kind of pencil?
In ancient Rome, scribes wrote on papyrus (an early form of paper) with a thin metal rod called a stylus, which left a light but readable mark. Other early styluses were made of lead. Today we still call the core of a pencil the "lead" even though it is made from nontoxic graphite.
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What does bh stand for in pencil?
i think you mean HB, Many pencils across the world, and almost all in Europe, are graded on the European system using a continuum from "H" (for hardness) to "B" (for blackness), as well as "F" (for fine point). The standard writing pencil is graded HB. According to Petroski, this system might have been developed in the early 1900s by Brookman, an English pencil maker. It used "B" for black and "H" for hard; a pencil's grade was described by a sequence or successive Hs or Bs such as BB and BBBfor successively softer leads, and HH and HHH for successively harder ones. As of 2009, a set of pencils ranging from a very hard, light-marking pencil to a very soft, black-marking pencil usually ranges from hardest to softest as follows.
No - generally speaking, a regular pencil is around 15 centimetres, or 0.15 metres long.
What are the names of the mechanical pencil parts?
Cool question.
But the parts of the pencil include:
No, they are not. You can't eat wood, lead, steel, graphite, or eraser.
Do you prefer to munch on HB pencils or 2B pencils?
um this is a weird question but i just "munch"on whichever pencil is in my hand
What do you do if a price of pencil lead is under your skin?
They quit using actual lead in pencils a long time ago, so I'm betting that what is under your skin is just graphite, which is harmless. Still, it may be a good idea to watch your finger over the next week, and if it gets red or sore, talk to your doctor. But don't worry, I myself have had a small piece of pencil lead in my finger for over a year and a half, so you should be fine.
What is in the middle of a pencil?
The black stuff in the middle of the pencil is a mixture of graphite (an element that is mined) and clay.
Who invented the Mechanical pencil and Why did they invent the mechanical pencil?
Derek L. Lozano and Francis Penis Major created the first mechanical pencil by joining the characteristics of a ball point pen with the convenience of an erasable pencil. First on sale in 1987!
They said to have invented the mechanical pencil because they thought that using pencils killed to many tress as well as killing the enviroment...
How does the bill blass pencil work?
First of all pull the top part then u will see an eraser pull that ad the thing that holds it, then put a .9,.7,.5 or whichever lead it needs(depends on which lead it requires), then once you have done that twirl the pencil then if that doesnt work then u go to where u got it and tell us what the people tell u
If the 2 pencil is the best pencil why is it still 2?
The number two in reference to a pencil denotes the relative hardness of the graphite or "lead" that is in the pencil, HB being softer and three being harder, etc.
Is a 7 mm mechanical pencil the same as a number 2 pencil?
The "number 2" designation refers to the "hardness" of the lead. The higher the number, the "harder"
The "7mm" designation refers to the "thickness" of the lead. The higher the number, the thicker.
They are not the same pencil.
Does a lead pencil contain any lead?
Pencils have never contained the metal, lead, although the word commonly used to describe the centre core of a pencil is, in English, 'lead'.
The ancient tool which preceded the modern pencil was a stylus, and these were frequently made from lead. The first versions of the modern pencil were made with graphite, a soft, carbon-based mineral, and this hasn't changed; both wooden and mechanical pencils are today made with a mixture of powdered clay, graphite and water, which is extruded into lengths and fired in ovens (kilns) until hard; the rods are then oiled or waxed for a smoother surface, preventing them catching on or damaging paper during use.
The use of graphite is ancient: evidence of pottery decorated with graphite-based compounds has been found dating back to the Neolithic Age.
The English commercialized graphite when they discovered deposits of the mineral in the 1500s; they took it to be a kind of lead and called it plumbago - from Latin, plumbum:lead - and later it became known as black lead. The marking qualities of graphite were immediately put to use by farmers in the area, for easy labeling of livestock and containers. Later, square sticks of graphite were sold for general writing; users or sellers wrapped them in various materials to protect the hands from the easily-transferred and very messy graphite residue.
Later still, the Italians began making wooden holders for graphite; their invention spread, and the term 'lead pencil'entered the English language sometime in the 1680s, the English still believing graphite was a form of, or contained some, lead.
Today we still use the term 'lead' to describe the inner core of a pencil and some still believe the core contains the metal, lead, or at least that it is in some way poisonous. It doesn't contain any lead, and it isn't at all poisonous.
What is the worst type of pencil?
The worst type of pencil would likely be one that has poor quality lead that easily breaks, smudges easily, or has a dull tip that is hard to sharpen. Additionally, pencils that are uncomfortable to hold or have erasers that leave smudges or tear the paper could also be considered the worst type of pencil.
How did the invention of the pencil change the world?
Pencils changed the world by allowing people all over the world to write and draw....Wikipedia is dumb i just changed this persons answer. so did i. it allso gave us a way to communicate with other people accross the world before the cpu
Which is wiser a pen or a pencil?
None.. maybe you should try chalk... or maybe even felts? o.o LOl these pringles are nice...