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Why is a hellium balloon on the ceiling one day and on the floor the next?
A helium balloon rises to the ceiling because helium is lighter than air, allowing the balloon to float. Over time, helium slowly escapes through the balloon's material, causing it to lose buoyancy. Once the balloon's helium level decreases enough, it can no longer stay afloat and descends to the floor. Temperature changes and air pressure can also affect the balloon's behavior, contributing to its descent.
Is incline the antonym of descent?
Ascent is an antonym of descent.
Who is ones lineal ascendant?
One's lineal ascendant is an ancestor in the direct line of descent, such as a parent, grandparent, great-grandparent, and so on. They are the individuals from whom a person is descended through a lineage of parent-child relationships.
What is natural descent and legal descent?
Natural descent is basically another term for generations (as in a family-line). Legal descent is a term that deals with inheritance rules that were established to describe what happens if someone passes away and leaves no legal will.
What is the definition of the word matrillineal?
tracing descent through the mother.
Why air balloon come down after some time?
Hot-air balloons function on the principle that warm air rises, and the balloon mechanism holds onto hot air to ascend. Despite this, the hot air can't stay in the balloon forever, the opening at the top of the balloon allowing a slow and steady flow of the hot air out of the balloon and a gentle descent to the ground.
Hot air balloons have a gas heater attached to them the pilot can turn the heater on the balloon and the balloon will go high why?
Hot air balloons have a gas heater that is generally powered by propane. When the pilot turns the heater on, the balloon will fly high due to the hydrocarbon chamber that allows the pilot control of ascent and descent of the hot air balloon.
How do hot air balloons descend?
Hot air balloons descend by releasing hot air from the balloon envelope, causing it to cool down and become denser. This decrease in density causes the balloon to descend slowly until it reaches the ground. Pilots control the rate of descent by manipulating the amount of heat in the balloon.
How does a balloon pilot control BOTH acsent and descent of a balloon?
A balloon pilot controls ascent by heating the air inside the balloon with a burner and descent by allowing the air to cool or venting it.
What happens to weather balloons after they are released into the atmosphere"?
After weather balloons are released into the atmosphere, they ascend to high altitudes, collecting data on temperature, humidity, and pressure. Eventually, the balloons burst due to low air pressure, and a parachute deploys to slow their descent. The instruments attached to the balloon are then retrieved for analysis of the gathered data.
How do hot air balloons return to the ground?
Hot air balloons descend by gradually releasing hot air from the envelope. The pilot controls the descent by manipulating the amount of hot air in the envelope and finding a suitable landing spot. When the balloon reaches the desired altitude for landing, the pilot will release all the remaining hot air and bring the balloon gently back to the ground.
Why do hot air balloons have sand bags?
Modern hot air balloons do not have sand bags because the air input is easily controlled for lift. Hot air balloons used to have sandbags to weigh them down until lift off and sand was gradually dumped to gain height in the air.
What does the principle of common descent imply about humans?
Apes and humans descended from the same common ancestor.
Why do hot air balloons have sandbags?
A hot air balloon needs to be slightly negatively bouyant. If a particular design can lift 1000lbs, an ideal flight weight might be 900 lbs so that, in the event of a burner failure, the balloon will slowly descend. If the payload for a given flight is only 600lbs (fuel, pilot, passengers) then 300 lbs of ballast (sandbags) will be needed to keep the bouyancy in the correct range. ------------------------------------------------------------------------------------------------ Sandbags or other ballast is used mostly for helium balloons, not hot air balloons. The rate of descent of a hot air balloon is controlled by the time the burners are burning. If it is going down too fast, you burn longer. You may have two burners but if you lose one, the other one can keep the balloon aloft. they are always much larger than needed. The design weight is based upon the volume of the balloon and a particular temperture of the air in the balloon which must be below the melting point of the fabric. Typically you don't need ballast to adjust payload in a hot air balloon. IN a helium balloon, the only way you can go back up after starting a descent (by dumping helium) is the drop some weight. So ballast would be helpful with helium balloons.
How would you show that air has weight?
drop a piece of paper from the height A2. An interesting experiment would be to blow up a series of party balloons, (of the same variety) and time their rate of descent when dropped from a height of ten feet or so. The first balloon will have one puff, the second, two puffs, the 3rd will have 4 puffs, then 8, 16 and so on. Though the puffs are not well calibrated, and the balloons will expand, the balloons at 8 and 16 should be heavier, and should fall faster. The first balloon will have more latex that air compared to its peers, so it will fall fastest (probably), but from there, the time plot should form a smooth curve.
How do hot air balloon pilots get their balloons back to earth?
Hot air balloon pilots control the descent of the balloon by releasing hot air and using vents to control the descent rate. They aim to land in a suitable location, often communicating with a ground crew to assist in the landing process. Once on the ground, the crew helps to pack up the balloon for transport back to the launch site.
What is a balloon ballast?
A balloon ballast is a weight attached to a balloon to control its altitude or position. By adjusting the amount of ballast on board, operators can regulate the balloon's ascent or descent by lightening or increasing the weight of the balloon.
