Any atmospheric, surface, or shallow subsurface burst. If it is too high to entrain dirt or water then the cloud is composed entirely of material from the bomb itself.
A nuclear explosion is the type of explosion that causes a mushroom cloud. The distinctive mushroom-shaped cloud is formed when the intense heat and energy of the explosion causes the surrounding air and debris to rise rapidly, creating the iconic cloud formation.
A nuclear explosion viewed from space appears as a bright flash of light followed by a rapidly expanding fireball. The explosion creates a mushroom-shaped cloud that rises into the atmosphere.
The force of the explosion pushes the air out from around it, creating a pocket of low air pressure. As the smoke and debris cloud begins rising, fresh air flows in from outside the area of explosion, forcing the cloud higher and forming the shape of a mushroom. This can happen with any sufficiently powerful explosion, but it's most well known and most well associated with nuclear explosions.
== == Any thermonuclear device creates a mushroom cloud because of the immense heat. Any explosion can create a mushroom cloud, as long as it can heat the gases enough to allow them to rise. The rising air lifts off the ground rapidly, until it reaches a height where the other gases are more dense. The falling gases then get sucked back into the "stem" as the rising gases are moving rapidly enough to create a vacuum. The "mushroom" phenomenon is created whenever there is a density differential between two bodies of fluid, called a "Rayleigh-Taylor Instability". This is mathematically dictated by Navier-Stokes equations.
actually no one knows. You are never close enough to tell. In theory they are not silent but do not break the sound barrier as some people would think. In theory they are not that loud. Just an educated guess but turn your tv all the way up and that is "supposed" to be how loud it is.
A low altitude detonation or a groundburst will cause a crater to form. Nuclear detonations that take place near the ground (but not underground) will create a mushroom cloud (this is caused by a Raleigh-Taylor instability). I have noted that a lower level detonation close to the ground will suck up material into the fireball and create a more pronounced stem.
Nuclear detonations that occur above ground tend to create mushroom clouds due to the rapid release of energy and heat into the atmosphere. The cloud is formed as the hot air and debris rise, expand, and cool, condensing moisture and creating the distinct mushroom shape.
to create a mushroom cloud take a mushroom put it in the mirowave in for 30 mins and their you have it...A MUSHROOM CLOUD by, bob and larry. 2009
Many nuclear detonations will create a mushroom cloud (especially near the ground due to material from the ground being sucked up into the vacuum created by the explosion, thus forming a large part of the "stem" of the cloud) and if they are near the ground, will create at least a small crater, but it sounds like you are talking about a groundburst detonation (as opposed to an airburst). These types of explosions carry more radioactive debris from the ground into the air and generate a lot of fallout due to the irradiated debris from the explosion.
Any: conventional, nuclear, or impact can cause a mushroom cloud.
mushroom cloud
A mushroom cloud is a distinctive pyrocumulus mushroom-shaped cloud of condensed water vapor or debris resulting from a very large explosion. They are most commonly associated with nuclear explosions, but any sufficiently large blast will produce the same sort of effect. Mushroom clouds are formed by many sorts of large explosions under earth gravity, though they are best known for their appearance after nuclear detonations. Inside a mushroom cloud: cooler air is drawn into the rising toroidal fireball, which itself cools into the familiar cloud appearance.
No
A nuclear detination
A mushroom cloud is the product of a very large explosion, such as from the detonation of a nuclear weapon. The cloud itself is formed by the rapidly rising ball of hot gasses.
Francium is an element, it does not 'create' anything.
The thumb mushroom cloud is a visual representation of a nuclear explosion, specifically the shape of the cloud that forms after the detonation. It is significant because it is a distinctive and recognizable symbol of the destructive power of nuclear weapons. The shape of the mushroom cloud is caused by the rapid expansion of hot gases and debris in the atmosphere following the explosion. This iconic image has become synonymous with the devastating impact of nuclear warfare and serves as a reminder of the potential consequences of using such weapons.