Your daily source of random knowledge
Published: February 2026
Black holes are regions in space where gravity is so strong that nothing — not even light — can escape. They form when massive stars collapse at the end of their life cycles.
Scientists believe that most galaxies, including our own Milky Way, have a supermassive black hole at their center. Despite their name, black holes are not empty; they contain a tremendous amount of matter packed into a very small space.
Published: February 2026
The invention of the printing press by Johannes Gutenberg in the 15th century changed the world forever. Before its invention, books were copied by hand, making them rare and expensive.
The printing press made it possible to mass-produce books, spreading knowledge quickly across Europe. This invention played a major role in the Renaissance, the Reformation, and the Scientific Revolution.
Published: February 2026
Artificial Intelligence (AI) refers to machines that can perform tasks that normally require human intelligence. These include learning, reasoning, problem-solving, and understanding language.
AI is used in smartphones, self-driving cars, recommendation systems, and medical diagnostics. As AI continues to evolve, it is expected to reshape industries and redefine how humans interact with technology.
Published: February 2026
Leaves appear green because of chlorophyll, the pigment responsible for photosynthesis. In autumn, as temperatures drop and daylight shortens, chlorophyll breaks down.
This reveals other pigments like carotenoids (yellow and orange) and anthocyanins (red and purple), creating the vibrant fall colors we see each year.
Published: February 2026
Habits are automatic behaviors triggered by cues in our environment. According to research, habits follow a loop: cue, routine, and reward.
Understanding this loop allows people to build better habits and break unwanted ones. Small, consistent actions over time can lead to significant life changes.