Rubik’s Cube
Credit: © Anastasiia Moiseieva, Shutterstock

What has six colors, six faces, and can frustrate most people? A Rubik’s Cube! Sunday, January 29th, is National Puzzle Day! Puzzles are fun activities that are good for your brain. It exercises your brain to think in different ways. There are many different types of puzzles: crossword puzzles, sudoku, riddles, and more. Rubik’s Cube is a physical and mental puzzle that requires a lot of practice!

Rubik’s Cube is a puzzle game invented by the Hungarian professor and puzzle enthusiast Ernö Rubik in 1974. The puzzle takes the form of a cube. Each face of the cube features a three-by-three grid of colored blocks. The blocks are connected to a central core in such a way that rows of blocks can be moved by twisting. Play begins by twisting the cube at random to scramble the colors. The player solves the puzzle by returning each side of the cube to a single color. Rubik’s Cube has become a pop culture icon. It has earned a place in the Strong National Toy Hall of Fame in Rochester, New York, and the collection of the Museum of Modern Art in New York City.

Rubik’s Cube puzzle
Credit: © ChristianChan/Shutterstock

Rubik was born July 13, 1944, in Budapest, Hungary. He trained as an architect and later taught at the Academy of Applied Arts and Crafts in Budapest. In 1974, Rubik used an early version of his puzzle game to teach his students about three-dimensional movement. His students loved the game. Rubik began selling his invention under the name Magic Cube in Hungarian toy shops in 1977. By 1980, his invention caught the attention of the Ideal Toy and Novelty Company, which licensed it. The company renamed the puzzle Rubik’s Cube. In just under two years, they sold over 100 million cubes.

The simple cube has been modified a few times over the years. Some later versions include larger grids of colors and different shapes. The construction of the Rubik’s Cube has also been improved—making the puzzle easier to twist and more durable—to aid in speedcubing competitions. In speedcubing, Rubik’s Cube fans compete to see who can solve the puzzle the fastest. Occasionally, additional challenges are added. These challenges may include solving the puzzle one-handed or even while juggling three cubes at the same time. In 1982, the puzzle was solved in 22.9 seconds at the first-ever Rubik’s Cube World Championships in Hungary. In later competitions, the puzzle has been solved in under 4 seconds.

Browns’ 1969 patent plan for an elaborate home security system suggests safety and relaxation can go hand in hand.
Credit: U.S. Patent and Trademark Office

Today many people have security systems installed in their houses. Security systems set off an alarm when someone breaks in and automatically call the police. Home security systems also connect to smoke alarms and call the fire department if there is a fire. Some people also have security cameras around the house. They can show us when we have a package at the front door or when a visitor is waiting outside. Newer models even let you open the door from your smartphone or smartwatch! Do you know about the woman who invented the first home security system?

Well, she did not work for the CIA, FBI, or Homeland Security. Marie Van Brittan Brown was a Black American nurse. She was born on Oct. 22, 1922, in the Queens borough (section) of New York City. She married Albert Brown, an electronics technician. She worked late hours as a nurse and was concerned about the slow response time of the police in her neighborhood. Brown created a home security system for their house and filed for a patent in 1966. Brown called her invention the “Home Security System Utilizing Television Surveillance.”

The system involved a camera that monitored four different areas, displaying surveillance footage on a television. The system also had a two-way microphone, a button to let visitors into the house, and a button that called the police. The patent was approved in 1969. However, Brown never found a manufacturer or marketed her invention. Brown died on Feb. 2, 1999, in Queens.