Thunder is defined as high pressure and temperatures in large proportions inside the clouds that carry electronic charges, and when a discharge of opposite polar charges occurs, the temperatures inside the cloud rise,Lightning is defined as the light that appears suddenly in the sky during the days when the weather conditions are bad and ready for rain,Lightning is caused by the collision of two clouds, one of which carries a negative electric charge, and the other carries a positive electric charge.

The flash of lightning and the sound of thunder occur at about the same time in what is called a thunderstorm, but a person on Earth sees a flash of lightning before hearing thunder, because light travels much faster than sound waves.We can estimate the distance of lightning by counting the number of seconds it takes for us to hear thunder. It takes about 5 seconds for the sound to travel one mile.

The speed of light is 300,000 km/sec, and the speed of sound is 340m/sec. Therefore, we see lightning before we hear thunder, even though they occur at the same time. The air expands quickly when lightning occurs, making a loud sound, but light is faster than sound, so we see lightning After a certain time, we hear the sound of thunder.For example, if the result is 15 seconds, the clouds will rise 4.5 km, meaning that every 5 seconds is equivalent to 1.5 km.

The speed of light depends on what it moves through. It is slow in the movement of gases, and fast in liquids, and even faster in solids. Compared to light, sound takes a long time to travel during a thunderstorm, and scientists have tried to measure the speed of sound for centuries after Isaac Newton created the first calculation My theory of the speed of sound.

Explanation of the phenomenon of thunder and lightning: Because opposites attract, the electrons in the cloud try to reach the protons in the ground below, and look for the tallest object to do so. As for the thunder that occurs due to lightning,The air expands and expands very quickly, and this leads to a vibration that creates a huge crack, and when the vibrations decrease gradually, a sound and echo known as thunder arise.

But in general, thunder and lightning occur at about the same time despite seeing a flash of lightning before hearing thunder, and this is because light travels much faster than sound, only this is the reason, but scientifically, both occur at the same time, when lightning that consists of lightning and thunder occur You must go to a safe place such as buildings and cars, so as not to be struck by lightning, and to ensure that the buildings are equipped with what is known as lightning rods.