The ballpoint pen was invented by Laszlo Biro in the 1930s, who was a Jewish-Hungarian journalist. During his time editing newspapers, he became very frustrated with the amount of smudging that the fountain pen caused. This made Biro determined to design a more practical pen.Know More
Biro used thicker ink and the sphere at the end of the pen, which allowed the ink to flow onto the paper more smoothly. His design is still used today.
In the late 1800s, a man named John Loud filed a patent for a similar ballpoint pen design, but it was unsuccessful. Biro's design became successful because fighter pilots during World War II needed more efficient pens that didn't leak. Laszlo Biro moved to Argentina to escape the war and found investors that eventually led to the mass production of ballpoint pens.Learn More
To make a BB gun with a pen, remove the ink tube and the ends from a ballpoint pen. Remove the lead from a mechanical pencil, and put the hollow tube inside the pen. Cut a notch in the eraser, and wrap the pen with rubber bands.Full Answer >
When Neil Armstrong and Buzz Aldrin first attempted to pilot their lunar lander back off the moon, a critical switch broke, forcing the astronauts to improvise a solution with a ballpoint pen. Aldrin took responsibility for breaking the switch, but he was also the one who found the solution in a ballpoint pen.Full Answer >
Pen ink is made from dyes that are suspended or dissolved in solvents, making it very similar to paint. The first inks were vegetable or fruit juices and the protective secretions from squid, octopus and cuttlefish. Black ink is made from carbon black and uses white pigments like titanium dioxide.Full Answer >
No single person invented algebra. The roots of algebra extend to the ancient Babylonians, who first developed mathematical techniques to solve problems using algorithms. Later work by Greek, Persian and Indian mathematicians further extended these techniques and laid the foundations for modern algebra.Full Answer >