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The Hydrogen Fallacy

Posted 01-31-2012 at 01:19 AM by T.Neo

(For the TL:DR version, scroll down to the bottom of the post.)

It is the position, or opinion of some (such as the writer of this blog post) that liquid hydrogen/oxygen ('hydrolox') rocket engines are a poor choice for first stages of launch vehicles, because they are 'thrust limited' and/or have a lower engine T/W.

However, there is no intrinsic correlation between thrust and propellant combination. If you had the motivation, resources and time, you could theoretically...
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SA 2010 Soccermaniac
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Old

WIP Starship (read: Giant Cone)

Posted 01-30-2012 at 03:19 PM by Izack

Here it is so far:



My first 3D model and first completely original Orbiter...thing. It'll get better. I hope.

In the mean time, I'm in the middle of the idea phase. Here's what I want it to do, at least for now:

1. Be capable of interstellar and interplanetary flight using magical antimatter whatever engines (MAWEs.) Accelerates nominally at ~10m/s^2.
2....
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Non sequitur
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Old

SEP-008, Chapter 2.

Posted 01-29-2012 at 05:32 AM by Scav
Updated 02-16-2012 at 12:51 AM by Scav

...and without further ado, here is:

SEP-008 Chapter 2

"Matt, what happened up there?"

The gruff voice resonated off of the office wall, and Flight Director Matthew Payton grimaced as all of his possibly intelligent answers flew out the window. Standing where he was for a moment in a fleeting state of complete apoplexy, he sighed and approached the desk.

"We're still working on it, Ed."

"Good,"...
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Mostly Harmless
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Old

Summer trip to America

Posted 01-28-2012 at 11:06 PM by george7378

I thought I would share a bit of info about my plans for the summer I am in the final year of high school in the UK at the moment, and I have applied to university, which will start in October (if all goes well). That gives me a good three months of glorious summer to use up Since this is a golden opportunity, I am planning to visit the USA! I have applied for a summer work programme, in which I would work on a summer camp in the states, and would also be paid $1500 and given some time after...
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DON'T PANIC
Posted in Personal Blogs
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Old

Minecraft Portal map development

Posted 01-27-2012 at 08:36 PM by Samuel Edwards

Greetings all,

Since this is not a minecraft forum, I posted this to my blog so to not cause a ruckus in the main forum.

I am creating a minecraft Portal map to use with the Portal Gun mod for minecraft. So far it has come along quite well, and I have developed a few test chambers to get started. I will post more and add pictures as the project develops. You may not see pics and blogs on this project often as it is a personal project that I am doing in my spare...
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HASSESA Founder
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