a hot air balloon
the air need to get though there are air vents on the bottom and i know this because ihave a laptop to and it would get hot and them go off so let the air go though
People in Florida need air conditioners because at times it gets to hot in Florida and they need to cool down, but it's to hot outside to go in the pool, or they don't know how to swim.
Hot air rises because it is less dense than cooler air. As the hot air expands, it becomes less dense and is pushed up by the denser, cooler air surrounding it. This creates convection currents, with hot air rising and cooler air sinking.
It needs hot air because hot air goes up and cold air goes down. Hot air makes it go up.
Well the simple and rather obvious answer is that you need air before you can get hot air. To go a little more complex, when you heat air it becomes less dense and therefore lighter, so it rises. That's why air goes up the chimney. Put the hot air in a balloon, the balloon goes up too...........
Hot air balloons go down by releasing the hot air in the balloon. Normally you just let the air inside cool and descend slowly. You release hot air only if you wish to descend more quickly.
Anyone can go on a hot air balloon, but there needs to be a driver to lead it.
Because the hot air balloon will keep on going up because the hotter the air gets the higher the hot air balloon will go!
Parents are free to take children of any age on a hot air balloon.
When using a ventilation system, hot air goes out while cold air comes in.
In the process of heat transfer, hot air moves to cold air.
go in a hot air balloon