Posted in meta on Monday 2008.01.28 | No Comments »
… So I’m trying not to post!
I found the option to take moderation out, so I’m relying on the automatic spam detection system now. At last the annoying moderation delay with the comments should be gone, sorry that it took so long…
Posted in Architecture, ISRU, Models, RLV:s, Spacecraft, Uncategorized, tagged analytics, ESAS, heavy lift, Koelle, Lunar architecture, Moon, VSE on Sunday 2008.01.27 | No Comments »
Okay, the topic of course is a pun of the current moon exploration approach chosen by NASA. It has been the subject of endless debate, and rightly so, but the various ideas for that are a subject for other days. Bush’s Vision For Space Exploration (VSE), NASA’s 90 day Exploration Systems Architecture Study (ESAS), the resulting [...]
Posted in Motivation, Uncategorized, tagged Austria, parachuting, Personal helicopter, yves rossy on Saturday 2008.01.26 | No Comments »
… you strapped some small wings and jet engines in your back and jumped from a plane?
Or attached a moped engine and a chair to two small counter rotating rotors?
Nah. Can’t be done.
Posted in Astronomy, Motivation, tagged 2007 TU24, asteroids on Thursday 2008.01.24 | No Comments »
In the end of January, a 100 m class asteroid called 2007 TU24 will pass near earth, somewhat beyond moon’s distance. It’s not visible with the naked eye, but only with reasonable size amateur telescopes. JPL has more.
This was only detected in November 2007. If some other big one was headed towards earth one day, it’s possible there wouldn’t be much time for warning…
Here is [...]
Posted in Models, RLV:s, Uncategorized, tagged cruise, hypersonic, Slug, transatlantic, v prize, virginia, wallops, X-24C on Wednesday 2008.01.23 | 16 Comments »
The Virginia Spaceport at Wallops (east coast of USA, south from New York) advocates want to create a prize to foster use for the spaceport, and have floated an idea of a “one hour to Europe” style prize, the V Prize, but the rules aren’t yet finalized.
The requirements are quite tough. About 6000 km in [...]
Posted in meta, tagged linux, unix, user interface on Wednesday 2008.01.23 | No Comments »
Been readin’ it again a little. It’s freely available as pdf from the net. It’s remarkable how so many people have similar problems with UNIX (and with Linux nowadays of course). I know my way around but am no expert by any means, and it’s often extremely frustrating when you’re trying to achieve some pretty [...]
Posted in Motivation, tagged glue on Tuesday 2008.01.22 | No Comments »
That lead to this blog, at least from what I’ve spotted so far:
“can glue make you high”.
Wondrous times we live, yes.
I have a not entirely serious post about hypersonics written up but I’m afraid to publish since I have so little understanding of the subject.
Posted in Models, RLV:s, tagged drag, drag loss, powered landing, RLV, scalability, TGV rockets on Thursday 2008.01.10 | 3 Comments »
Jon Goff had an analysis (no equations or numbers though!) of an air-launched reusable SSTO idea, furthermore he promised to look at other reusable orbital launch vehicle ideas in the future. I thought I’d drop a few lines in regards to almost all architectures.
The summary is that big rockets have little drag losses going up [...]
Posted in Colonization, ISRU, Science, tagged 3d printer, glue gun, raprep, self-replication on Monday 2008.01.07 | No Comments »
I’ve been wondering at this ever since the meme has been circulating. People make a printer that shoots glue, layer upon layer and thus it can print 3d objects.
But saying such 3d printers will replace factories and manufacturing is very clearly wrong. Take a look at almost anything you’re using or wearing right now. It’s [...]
Posted in Models, Science, tagged Climate, climate modeling, fortran, python on Wednesday 2008.01.02 | No Comments »
Michael Tobis, a climate scientist, thinks climate modeling is progressing too slowly and might have even reached a plateau of sorts. There still aren’t very good regional precipitation predictions for example.
And he thinks, far simplified, that the disorganized mess of patching the old fortran codes is the reason - the climatology community should take a [...]
