A high altitude balloon experiences several forces, primarily buoyancy, weight, and drag. Buoyancy acts upward, allowing the balloon to rise in the atmosphere, while the weight of the balloon and its payload pulls it downward due to gravity. As the balloon ascends, drag increases due to air resistance, which can slow its ascent. The balance between these forces determines the balloon's altitude and behavior during flight.
It is not so much high temperature as temperature gradient - a change in the temperature from one altitude to another - and the resulting density changes this creates. The different layers act like lenses and make the light move in different ways at different times, giving that sparkly effect.
When two forces act on an object in opposite directions inside a closed balloon, the forces are in equilibrium. This means that the net force on the object is zero, resulting in no acceleration of the object.
If the balloon accelerates (changes its speed), then that means that forces act on it. If any object "does not follow" Newton's First Law, that means that the conditions are not fulfilled - the conditions being that no net force acts on an object.
The rainbow pattern around the moon is caused by the refraction and dispersion of moonlight through ice crystals in high-altitude cirrus clouds. These ice crystals act as prisms, bending and separating the different colors of light just like a rainbow.
The ring around the sun is likely a halo, which is caused by the refraction, reflection, and dispersion of sunlight by ice crystals in high-altitude cirrus clouds. These ice crystals act like prisms, bending the sunlight and creating a ring or halo around the sun.
Two forces that act on a hot air balloon are lift, generated by the heated air inside the balloon being less dense than the surrounding air, and gravity, which pulls the balloon downward.
The ring around the moon is known as a lunar halo and is caused by the refraction of moonlight through ice crystals in high-altitude cirrus clouds. These ice crystals act like tiny prisms, creating a ring of light around the moon. It is an optical phenomenon that does not signify anything specific except the presence of these high-altitude clouds.
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"Altitude" is a synonym for elevation, or for the act of elevating, "ascent" (verb form, to ascend).
When you put a skewer through a balloon, the rubber in the balloon stretches and forms a temporary seal around the skewer. The rubber is flexible enough to conform to the shape of the skewer without tearing, preventing the balloon from popping.
There are multiple forces which act on an aircraft, Lift, Gravity, Thrust and Drag, all would come into account when an aircraft is at altitude. If you wanted to get more specific, you could say gravity and lift control the vertical movement of an aircraft, but are not attainable without thrust.
Launching is the act of sending a vessel into space. These days, it is usually done by lighting a rocket to carry the craft from ground to orbit, but sometimes they get to orbit via a smaller rocket launched from a high-altitude aircraft.
It is not so much high temperature as temperature gradient - a change in the temperature from one altitude to another - and the resulting density changes this creates. The different layers act like lenses and make the light move in different ways at different times, giving that sparkly effect.
When two forces act on an object in opposite directions inside a closed balloon, the forces are in equilibrium. This means that the net force on the object is zero, resulting in no acceleration of the object.
When the air is heater, the molecules move faster and expand to fill the volume of the container.
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