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[NBC] SpaceX Grasshopper rocket makes a half-mile hop - Page 3

post #21 of 23
amazing, paving the way for trips outside of earth and back again thumb.gif
post #22 of 23
Thread Starter 
I know it's not really a debate but some people refuse to believe this is legit...

"Grasshopper v1.0 made its eighth, and last, test flight on October 7, 2013, flying to an altitude of 744 metres (2,441 ft) (0.46 miles) before making its eighth successful landing"

Wiki Page confirms it.

That is the last flight of Grasshopper v1.0 the next version Grasshopper v1.1 will be tested at supersonic speeds and carrying a payload. I hope they release more videos like this one too. Almost scary how close the rocket comes to the camera drone on it's descent.thumb.gif
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post #23 of 23
Quote:
Originally Posted by Maelthras View Post

That was a cgi video, not real.
It's real video -- not CGI.

They used a hexacoptor (like a radio controlled toy helicoptor, but much bigger) to carry the video camera. ---- Just look at 0:55 of YouTube, you can see helicoptor's rotor.
-- In addition, also, viewing 1080p full screen HD version of exactly the same video, it already immediately becomes obvious it's real video rather than CGI.
-- Plus, SpaceX already documented how they control the thrust using gimballing. If you zoom in the video of some of the other videos close ups, you can see the gimballing (e.g. thrust tilts 1 inch that way, then thrust tilts 1 inch the other way). You can't see it from this distance. That's some damn good and precise high-speed real-time engine gimballing. Who needs sideways thrusters or fins with such precise gimballing like that (seen in SpaceX' other videos) ????

It's so "perfect" it looks like CGI, but hundreds of people have seen this vehicle flying successfully. Such amazing precise camera control from a high-end video hexacoptor, combined with SpaceX's ultraprecise tiny-amount thrust vectoring (less than half a degree from vertical), simply makes it look fake because it is so perfect looking. Also, a familiarity with YouTube-like compression algorithms (H.264, etc), means you must go to the source (as uncompressed as possible) because YouTube often puts a compression-related "artificial" look to videos.

Although I don't want to cite Wiki directly, the Wiki page has 39 references, many of them convincing proof that this launch happened for real. Also, people in that countryside witnessed seeing, in the distance, a rocket that went up and then down -- it was covered by some of the local news in that part of Texas.

Armchair "amateur photoshop analysts" like this do a big disservice to science. The large number of false-positive and false-negative "FAKE!" means a proper analysis of "is it photoshopped" needs to be scrutinized closely. As you obviously haven't seen precise rocket thrust vectoring (exhaust tilting less than 1 degrees that it can only be seen in closeups -- e.g. thrust vectoring of only 0.5 degrees or less from vertical -- not noticeable in this video), you need to step aside and let real professional photoshop analysts do their job.
Edited by mdrejhon - 10/16/13 at 1:19pm
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