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Forum » SpaceEngine » Off-topic Discussions » Totally off-topic thread (Talk about anything.)
Totally off-topic thread
midtskogenDate: Wednesday, 23.04.2014, 09:02 | Message # 2371
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I've analysed one of the dashcam videos of the Kola fireball and posted it here: http://norskmeteornettverk.no/wordpress/?p=1543

It's clear that the meteorites from this fall are Russian. I see no way anything can have crossed the Norwegian or Finnish borders. Perhaps my post should be translated into Russian to attract more Russian interest. Would anyone here volunteer to do the translation?





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HarbingerDawnDate: Friday, 25.04.2014, 02:01 | Message # 2372
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anonymousgamerDate: Sunday, 27.04.2014, 19:53 | Message # 2373
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DoctorOfSpaceDate: Sunday, 27.04.2014, 20:26 | Message # 2374
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werdnaforeverDate: Monday, 28.04.2014, 02:50 | Message # 2375
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Quote HarbingerDawn ()

"Engineering, please respond. LaForge, do you READ me?"
 
NovaSiliskoDate: Tuesday, 29.04.2014, 20:38 | Message # 2376
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Trying to identify this mineral I found... it was picked up in Alaska by my grandfather in the 1940s (IIRC), and I'm curious as to what it is.



Fairly heavy, 6.5cm across and about 2cm deep. Looks somewhat metallic (doesn't come through in photos, overall it's got a definite sheen to it), small patches of high reflectivity and what looks to be tiny crystals or flecks of metal in it. Magnets want to stick to it but can't keep themselves held on (though, the only magnets I have are old and crap). Maybe a meteorite, but I doubt it. Weighs about 110-115 grams, but I do NOT trust this scale I have, it's very old and the calibration slips very easily.

More pictures (camera auto exposure has no idea wtf to do)



The white patches I think are contamination from the other rocks in the jar it was in. I managed to wipe a little bit of it off.


Edited by NovaSilisko - Tuesday, 29.04.2014, 20:41
 
midtskogenDate: Tuesday, 29.04.2014, 21:10 | Message # 2377
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DoctorOfSpaceDate: Saturday, 03.05.2014, 03:03 | Message # 2378
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laiodDate: Saturday, 03.05.2014, 03:03 | Message # 2379
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[Moved from here]

I found out that the V2 Rocket created by Nazi Germany was in fact the first human made object in space. October of 1946 a captured V2 was launched 65 miles above the Earth's surface. Space being 62.5 miles up, this qualifies as being in space.





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AerospacefagDate: Saturday, 03.05.2014, 03:03 | Message # 2380
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laiod, no, it was in 1944, because this was the time when the rocket was tested.

And actually, there's a slight difference between "being in space" and "reaching the space", because the first one is a stable non-ballistic orbit, that requires a lot more energy to achieve, several times more that just reaching certain altitude.

HarbingerDawn, this is really impressive, but I want to ask if they are going to land these stages on several designated pads below the flight path? Or is it better for them to just land on some airfield? I think it's pretty hard to calculate path of such object in atmosphere, the higher it flights.
 
HarbingerDawnDate: Saturday, 03.05.2014, 03:04 | Message # 2381
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laiod, 1) 1946 was the first time Earth was photographed from space, not the first spaceflight. As Aerospacefag said, that was in 1944. 2) The internationally accepted boundary of space is 100 km, which equals 62.15 mi, not 62.5. 3) This is not the place to make such a post, as it has nothing to do with the topic of this thread.

Quote Aerospacefag ()
I want to ask if they are going to land these stages on several designated pads below the flight path?

They are going to fly back to the launch site to land. We will probably see this happen (a stage returning to land somewhere near the launch site) later this year. Their goal is to eventually be able to launch a stage, land it back at the launch site, and be able to launch it again within hours. Obviously this will be hard to do, but they plan to be able to fly a returned stage next year. So they will probably be flying used stages on operational missions by 2016. If they can do this and can reuse the stages a large number of times (>10) with little maintenance, then launch costs for their Falcon 9 rocket could be reduced to $15 million or less, and $20 million or less for Falcon Heavy (based on my personal estimates, actual values could be higher or lower). This would make them the cheapest rockets in the world.





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laiodDate: Saturday, 03.05.2014, 03:04 | Message # 2382
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Quote HarbingerDawn ()
laiod, 1) 1946 was the first time Earth was photographed from space, not the first spaceflight. As Aerospacefag said, that was in 1944. 2) The internationally accepted boundary of space is 100 km, which equals 62.15 mi, not 62.5. 3) This is not the place to make such a post, as it has nothing to do with the topic of this thread.


Well where would I post something like this then? All of my sources say that the height is 62.5, and that the first one was in 1946.





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Edited by laiod - Saturday, 03.05.2014, 02:39
 
HarbingerDawnDate: Saturday, 03.05.2014, 03:04 | Message # 2383
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Quote laiod ()
All of my sources say that the height is 62.5, and that the first one was in 1946.

Then your sources are incapable of basic math and have bad history books. Would you mind saying just what your sources are?

Quote laiod ()
Well where would I post something like this then?

The totally offtopic thread.





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laiodDate: Saturday, 03.05.2014, 03:04 | Message # 2384
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Quote HarbingerDawn ()
The totally offtopic thread.


Oh.

Altitude is 62.5 according to smithsonian:

http://www.airspacemag.com/space....?no-ist

I was wrong about how it was the first in space, but according to this it was in 1942, not 1944, that the A4 later called the V2 was launched into the fringes space:

http://inventors.about.com/library/inventors/blrocketv2.htm





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Edited by laiod - Saturday, 03.05.2014, 19:55
 
DoctorOfSpaceDate: Sunday, 04.05.2014, 04:54 | Message # 2385
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