Physical experiments

The practice of conducting experiments and observations aimed at investigating physical phenomena, testing theories, and discovering patterns in nature, which began to take shape as a systematic activity in ancient Greece and became the foundation of the scientific method in the 17th century through the work of Galileo Galilei, Isaac Newton, and other scientists. Physical experiments encompass a wide range of activities — from simple classroom demonstrations to complex laboratory setups, including measurement, modeling, observation, and hypothesis testing. This practice underpins all areas of physics: mechanics, thermodynamics, optics, electrodynamics, nuclear and quantum physics. Experimentation not only verifies theoretical models but also leads to the discovery of new phenomena, such as the photoelectric effect, the identification of elementary particles, and the detection of gravitational waves. The history of physical experimentation includes key events such as the dropping of objects from the Leaning Tower of Pisa, pendulum studies, electricity and magnetism experiments, particle accelerator construction, and research at the Large Hadron Collider. In educational and amateur contexts, physical experiments foster critical thinking, understanding of natural laws, and engineering skills, and are commonly used in schools, universities, science clubs, and science outreach festivals.