1
Physics, Astronomy & Cosmology / Re: What should be taken into account when flying helium balloons?
« on: 10/03/2019 07:15:50 »
Find a good weather window to protect the balloons from bursting. 
Show Posts
This section allows you to view all posts made by this member. Note that you can only see posts made in areas you currently have access to.
Pages: [1]
2
Chemistry / Re: Would a helium and air mix stay in a balloon for longer than pure helium?
« on: 10/03/2019 07:07:58 »
Although a half-helium balloon floats better than a completely air-filled balloon, it will also deflate faster, based on principles governed by Graham's law, which holds that the rate at which gas escapes from a container is directly related to the molecular weight of the gas.
Because helium is so much lighter than nitrogen and oxygen, the primary components of the atmosphere, it will escape at a faster rate.
If you intend to keep your half-helium balloon airborne for a substantial length of time, you'll have to periodically replace the lost helium.
Because helium is so much lighter than nitrogen and oxygen, the primary components of the atmosphere, it will escape at a faster rate.
If you intend to keep your half-helium balloon airborne for a substantial length of time, you'll have to periodically replace the lost helium.
3
General Science / Re: How do I weigh a Helium-Filled Balloon?
« on: 10/03/2019 07:02:10 »
In the case of a balloon, the helium inside the balloon weighs less than the same volume of air the balloon displaces. This air outside pushes on the balloon, and up it goes!
So a helium balloon has two opposing forces acting on it: gravity pulling it down, and buoyancy pushing it up. Buoyancy wins, so you can’t really weigh a balloon, even though it does have weight.
So a helium balloon has two opposing forces acting on it: gravity pulling it down, and buoyancy pushing it up. Buoyancy wins, so you can’t really weigh a balloon, even though it does have weight.
4
Just Chat! / INTRODUCTION
« on: 10/03/2019 06:55:39 »
Hi All, As An Introduction I am Nizam Ali.
I work as a Sales manager for about 4 Months in <<<COMMERCIAL DETAILS REMOVED>>> Which is a helium gas manufacturing company <<<COMMERCIAL DETAILS REMOVED>>>
I am here just gain more knowledge about science and especially helium.
I work as a Sales manager for about 4 Months in <<<COMMERCIAL DETAILS REMOVED>>> Which is a helium gas manufacturing company <<<COMMERCIAL DETAILS REMOVED>>>
I am here just gain more knowledge about science and especially helium.
5
General Science / Re: How high can a helium filled balloon fly before it bursts?
« on: 10/03/2019 06:48:11 »
It is possible to design a balloon that doesn't pop. If such a balloon were allowed to rise, it would eventually reach "the top of the atmosphere" and go no higher. Imagine that you release a balloon filled with air in the deep end of a swimming pool. The balloon will rise until it is floating on top of the water and go no higher. A balloon filled with helium would eventually get to the top of the atmosphere in that same way. It would depend on the weight of the balloon, but would be between 20 and 30 miles up.
Pages: [1]