Honey, if you're planning on munching on a pencil for a snack, you've got bigger problems than worrying about lead poisoning. Technically, yes, ingesting a large amount of lead from a pencil could potentially kill you, but you'd have to chow down on a whole lot of pencils to reach a lethal dose. Stick to regular food, darling.
Pencil lead used to explode fairly easily when I lived in Bulgaria in 1995. We used to make it explode with only a lighter. It would take about a minute to make a 2 inch piece of lead explode. When I moved to America, I was sad to find that American pencil lead does not explode.
A typical lead pencil does not actually contain lead. The "lead" in a pencil is made of graphite, which is a crystalline form of carbon. Therefore, there is 0% lead in a lead pencil.
The part that holds the eraser on is called "ferrule" and the part you write with is normally graphite, but sometimes is lead or charcoal.
A caliper would be the best tool for measuring the width of a pencil lead. It is precise and allows you to measure small dimensions accurately.
A 9mm pencil lead is thicker than a 7mm pencil lead.
The piece of lead in a pencil or the pencil.
No, the lead in a pencil does not contain lead. Lead that is in pencils are made out of graphite.
Pencils do not contain lead, contrary to popular belief. Pencils contain graphite, which doesn't kill anything on its own. Pencil "lead" is not lead. It is graphite. The only way to hurt your female organs with a pencil is if you stab your self in the gut.
If lead pencils were the ONLY thing you ate, it would kill you in a lot less time than that. Pencils do contain some digestible fiber (in the wood), while the graphite "lead" doesn't provide much in the way of nutrition. The "lead" in a pencil is actually not the element lead, which can be toxic; it is graphite, which is powdered carbon. Eating one pencil "lead" is pointless, but harmless.
the .7 has nothing to do with the hardness of the lead. The number is the diameter of the piece of lead.
Pencil "lead" is actually made of graphite, not lead. Graphite is non-toxic and generally safe to ingest in small amounts, so eating a small piece of pencil lead is unlikely to make you sick. However, it is always best to avoid ingesting any non-food items.
The "lead" is really graphite. The silver piece is called "ferrule". Hope it was helpful.
No, a 0.5 mm lead refill would not work for a 0.7 lead pencil. The lead size must match the pencil size for it to fit and work correctly.
I would improve a pencil by using less wood and lead.
Pencil lead is very narrow. Millimeter can be used to measure it.
Here's an example of pencil rubbing: Put a coin under a piece of paper and lightly rub it with the side of the pencil lead and the details of the coin will appear!
Pencil lead used to explode fairly easily when I lived in Bulgaria in 1995. We used to make it explode with only a lighter. It would take about a minute to make a 2 inch piece of lead explode. When I moved to America, I was sad to find that American pencil lead does not explode.