This is not quite correct. The photographs that are analyzed are taken before either the shock wave or wind reaches the smoke columns. What is analyzed is the refraction error created by viewing the yet-unaffected smoke columns through the shock circle:Gonzolo said:They are independent smoke trails. Analysing how they dissipate gives information on the blast waves.
Gonzolo said:They are independent smoke trails. Analysing how they dissipate gives information on the blast waves.
The lines behind a mushroom cloud are known as "cloud streets" and are caused by a phenomenon known as the "Kelvin-Helmholtz instability". This occurs when there is a difference in wind speeds within the cloud, causing the cloud to fold over itself and create the distinct line pattern.
The duration of the lines behind a mushroom cloud can vary depending on the atmospheric conditions at the time of the explosion. In most cases, the lines will dissipate within a few minutes, but they can last for hours if the conditions are right.
Yes, the lines behind a mushroom cloud can often be seen from far away due to their large size and distinct shape. They can be seen for hundreds of miles in some cases, depending on the size and intensity of the explosion.
No, the lines behind a mushroom cloud are not dangerous. They are simply a visual effect caused by the instability within the cloud and do not pose any threat to people or the environment.
No, not all nuclear explosions produce lines behind the mushroom cloud. The conditions within the atmosphere must be just right for the Kelvin-Helmholtz instability to occur and create the distinct line pattern.