please rephrase the question
astronauts use space pen because as there is 0gravity in space ink will not fall on the paper
The space pen was invented by Paul C. Fisher in the 1960s after NASA experienced issues with traditional pens in space. Fisher developed a pen that used pressurized ink cartridges to work in zero gravity, extreme temperatures, and underwater. The pen went on to be used by astronauts on Apollo missions and continues to be popular for its reliability in various environments.
There is a pen appropriately named the Space Pen (also known as Zero Gravity Pen) produced by the Fisher Space Pen Company. The pen itself is also advertised to write underwater.
NASA did not invent the space pen; it was developed by Paul C. Fisher in the 1960s. Fisher's pen uses a pressurized ink cartridge that allows it to write in zero gravity, underwater, and in extreme temperatures. NASA tested the pen and decided to use it for its astronauts, but the idea was commercially available and not a NASA invention. The pen became famous for its reliability in space missions.
It paid millions of money after this space pen.
A Fisher Space Pen, specifically the AG7 model, is commonly used in space by astronauts due to its ability to write in microgravity, extreme temperatures, and upside down. The pen uses a specially formulated ink that is pressurized to work in the harsh conditions of space.
The astronauts use space pen to write in space or zero gravity.The Space Pen (also known as the Zero Gravity Pen), marketed by Fisher Space Pen Company, is a pen that uses pressurized ink cartridges and is claimed to write in zero gravity, upside down, underwater, over wet and greasy paper, at any angle, and in extreme temperature ranges.The Fisher Space Pen was invented by American industrialist and pen manufacturer Paul C. Fisher and is manufactured in Boulder City, Nevada, USA. Paul C. Fisher first patented the AG7 "anti gravity" pen in 1965. Pens claiming some or all of the same abilities have also appeared on the market from other manufacturers.
b/c there is no gravity and ink is not move down word.
The space race pen, also known as the Fisher Space Pen, works in zero gravity and extreme conditions by using a special pressurized cartridge that pushes ink out evenly through a tungsten carbide ballpoint. This design allows it to write in any orientation and withstand extreme temperatures, making it suitable for use in space.
a space pen
Rather than using a pencil, astronauts needed a pen that would write while they were in space. So the pen was invented. On earth, they will write regardless of whether you are upside down or rightside up.
1965