DaveC426913 said:Those are smoke flares launched prior to detonation of test nukes to give the observers a means to measure the blast's effect on surrounding air.
http://en.wikipedia.org/wiki/Mushroom_cloud#Physics"
Pics?A/4 said:The OP might also be referring to the "legs" that extend below the fireball immediately after detonation, visible in high-speed films. Those are the tower's guy-wires vaporizing from the prompt EM pulse.
Here are some miscellaneous pictures from above ground and shallow underground tests. Note in partcuular the spectators on the beach during some Operation Hardtack Phase I tests (pgs 27-30).DaveC426913 said:Pics?
Visual anomalies during nuclear explosions are any unexpected or abnormal visual effects that occur during or immediately after a nuclear explosion. These can include changes in color, brightness, or shape of the explosion, as well as the appearance of shock waves, dust clouds, or other phenomena.
Visual anomalies during nuclear explosions are caused by a combination of factors, including the intense heat and light generated by the explosion, the rapid expansion of gases, and the movement of debris and dust. These factors can cause light to bend and scatter in unexpected ways, creating the visual anomalies.
Visual anomalies during nuclear explosions themselves are not inherently dangerous. However, they can be an indicator of the intensity and magnitude of the explosion, and therefore can be a warning sign of potential danger from the blast, heat, and radiation. It is important to take shelter and follow safety protocols if visual anomalies are observed during a nuclear explosion.
While scientists have a good understanding of the physical processes that cause visual anomalies during nuclear explosions, they cannot be predicted with complete accuracy. The exact appearance and behavior of these anomalies can vary depending on the specific conditions of the explosion, making it difficult to predict their occurrence.
Scientists study visual anomalies during nuclear explosions through a combination of field observations and laboratory experiments. By recording and analyzing data from real nuclear explosions and conducting controlled experiments, they can better understand the underlying physical processes and make predictions about how visual anomalies may behave in different scenarios.