Light Slows Down When Traveling Through Water or Glass

Sound travels at approximately 343 m/s in air at 20°C, but reaches about 1,484 m/s in seawater — over 4 times faster. Water's greater density and incompressibility allow molecules to transfer vibrations more efficiently. This is why humpback whales can communicate over thousands of kilometers through the ocean.

On March 1, 1896, French physicist Henri Becquerel accidentally discovered radioactivity while studying phosphorescence. He found that uranium salts emitted rays capable of exposing photographic plates without any light source — entirely on their own. This discovery overturned established views of matter and energy, and later earned him a share of the 1903 Nobel Prize in Physics alongside Marie and Pierre Curie.

The renowned physicist Albert Einstein, born on March 14, was a Pisces, embodying the sign's deep intuition, imaginative problem-solving, and profound connection to universal mysteries. His visionary insights transformed our understanding of the cosmos.

Traveling at the speed of light (299,792,458 meters per second), photons from the Sun embark on a 150-million-kilometer journey across space. This means we always see the Sun as it was 8 minutes ago.