No, it is not possible for a sound to travel all the way across the world. Sound is a mechanical wave that requires a medium, such as air, water, or solid materials, to travel through. The speed of sound varies depending on the medium, but in air at sea level, it travels at approximately 343 meters per second (or about 1,125 feet per second).
Given the circumference of the Earth, which is roughly 40,075 kilometers (24,901 miles), it would take a significant amount of time for a sound wave to travel such a vast distance. Even if we assume perfect conditions and no loss of energy, it would take over 10 hours for sound to travel around the entire Earth. In reality, sound waves would encounter various obstacles, such as atmospheric conditions, absorption, scattering, and other factors that would significantly attenuate and distort the sound.
Furthermore, the curvature of the Earth would cause the sound wave to disperse and weaken over long distances. So, while sound can travel impressive distances under suitable conditions, it cannot propagate all the way across the world due to the limitations of the medium and the physical properties of sound waves.