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| Inside the ballon envelope |
The inner envelope |
|
 |
 |
|
| Squashing air out of the envelope |
Packing away the envelope |
|
 |
 |
|
| Stretching the envelope |
Helpers stretching the envelope |
|
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|
| The stretched envelope |
.....continued |
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 |
 |
|
| Filling with air |
More envelope stretching |
|
 |
 |
|
| The parachute valve |
Top of the envelope |
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 |
 |
|
| Bright coloured parachute valve |
The inner envelope |
