Physics in the early 20th century

In the early 20th century, physics underwent a revolution with the discovery that classical theories couldn't explain phenomena at very small scales or high energies. Albert Einstein introduced relativity, showing that space and time are linked and that gravity affects them. Simultaneously, quantum mechanics revealed that particles behave unpredictably and energy is quantized. These advancements reshaped understanding of the universe, leading to a more complete picture of nature's fundamental laws. This period marked the transition from Newtonian physics to modern theories that explore the universe's deepest mysteries.