No one knows who invented pencils o

No one knows who invented pencils or when it happened. A Swiss described a pencil in a book in 1565. He said it was a piece of wood with lead (Pb) inside it. (Lead is a very heavy metal). Pencils weren’t popular, and people continued to write with pens. They used bird feather as pens.
Then in 1795, someone started making pencils from graphite and they became very popular. Graphite is a kind of coal. (Coal is black, and we burn it for heat and energy). Today, people make pencils in the same way. They grind the graphite, make it into the shape of a stick, and bake it. Then they put it inside a piece of wood. One pencil can write 50,000 English words or make a line 55 kilometers long.
People wrote with feather pens and then used pens with metal points. They had to dip the point into ink after every few letters. Next someone invented a fountain pen that could hold ink inside it. A fountain pen can write several pages before you have to fill it again.
Two Hungarian brothers, Ladislao and Georg Biro, invented the ballpoint pen that we all use today. They left Hungary and started making ballpoint pens in England in 1943 during World War II. English pilots liked them. They couldn’t write with fountain pens in airplanes because ink leaked out. Later, a French company called Bic bought the Biro’s company. Someone calls ballpoint pen a bic. The Australian call them biros. Whatever we call them, we use them every day.

Kết quả (Anh) 1:

No one knows who invented pencils or when it happened. A Swiss described a pencil in a book printed in 1565. He said it was a piece of wood with lead (Pb) inside it. (Lead is a very heavy metal). Pencils weren't popular, and people continued to write with pens. They used bird feather as pens.Then in 1795, someone started making pencils from graphite and they became very popular. Graphite is a kind of coal. (Coal is black, and we burn it for heat and energy). Today, people make pencils in the same way. They grind the graphite, make it into the shape of a stick, and bake it. Then they put it inside a piece of wood. One pencil can write 50.000 English words or make a line 55 kilometers long.People wrote with feather pens and then used pens with metal points. They had to dip the point into ink after every few letters. Next someone invented a fountain pen that could hold ink inside it. A fountain pen can write several pages before you have to fill it again.Two Hungarian brothers, Ladislao and Georg Biro, invented the ballpoint pen that we all use today. They left Hungary and started making ballpoint pens in England in 1943 during World War II. English level liked them. They couldn't write with fountain pens in airplanes because ink leaked out. Later, a French company called Bic bought the Biro's company. Someone calls ballpoint pen a bic. The Australian call them biros. Whatever we call them, we use them every day.

Kết quả (Anh) 2:

No one knows who invented pencils or khi happened. A Swiss tả a pencil in a book in 1565. He said it was a piece of wood with lead (Pb) inside it. (Lead is a very heavy metal). Pencils were not Cool, and People continued to write with pens. They used as bird feather pens.
Then in 1795, someone replied to making pencils from graphite and chúng became very Popular. Graphite is a kind of coal. (Coal is black, and burn it for heat chúng and energy). Today, People in the same way make pencils. They grind the graphite, make it the shape of a stick vào, and bake it. Then put it inside a chúng piece of wood. One pencil can write 50,000 words or make a line English 55 kilometers of long.
People wrote with feather pens and then used pens with metal points. They Had to dip the point after every few What ink Into letters. Someone invented a fountain pen Next có could hold ink inside it. A fountain pen is before you can write vài pages have to fill it again.
Two Hungarian brothers, Ladislao Biro and Georg, invented the ballpoint pen all use today có chúng. They left Hungary and ballpoint pens in England replied to making khi World War II in 1943. English pilots liked added. They write with fountain pens could not print ink leaked out vì airplanes. Later, a French company Bic gọi Bought the Biro's company. Someone calls a bic ballpoint pen. The Australian call biros added. Whatever We Call Them, We use every day added.