fbender

15 ms·

121.
by fbender 11y ago
I find all SpaceX launches to be "slow" compared to (some) other launches. But this is mostly due to the Falcon not having any solid rocket motors: These produce a massive amount of thrust (far higher than liquid engines) and thus
122.
by fbender 11y ago
1) They will assess the failure, maybe change some elements minimally, and launch again. It does not look like they'll go out of business anytime soon, and that would be the only reason not to try it again and again. 2) The legs have n
123.
by fbender 11y ago
The Launch Abort System (LAS) is heavy, and since it requires Dragon V2, which includes more systems only required for human missions, the overall system mass is even higher than "just" the LAS. Heavy is extremely expensive, ergo
124.
by fbender 11y ago
Correction: It seems that the tilt maneuver at the end is intentional[1] to not hit the barge full force if something goes wrong. Instead, the control system did not account for (all of the) lag in the propulsion system (time between comman
125.
by fbender 11y ago
No. They could add pyro separators and moving knives (as the Apollo LAM used). They just need to be able to easily replace the "last few centimeters" of plumbing/cables, but it does not have to be dynamic. Either way, this (I
126.
by fbender 11y ago
You perfectly expressed what I feel (and tried to say in my comment below). To emphasize on "always bet on software": As seen on the landing video of the (marginally failed) attempt today/yesterday, they are having issues wit
127.
by fbender 11y ago
Interesting concept, but – as others said – it seems rather hacky. Sure, from one engineering perspective it's straightforward to only collect the engines. Others say that re-assembly and especially the proposed collection process adds
128.
by fbender 12y ago
The IXV is more similar to the SNC Dream Chaser than any of what SpaceX is doing. Though you cannot compare them either, apart from that they are both spaceships, utilize the lifting body concept, and have (at different levels) autonomous c
129.
by fbender 12y ago
There used to be some work on getting Gecko on iOS. Since Apple does not allow rendering enginges alongside WebKit in iOS apps, the work was abandoned. It is now revived, according to https://blog.mozilla.org/meeting-notes&#
130.
Gecko for iOS is revived(hg.mozilla.org)
2 points by fbender 12y ago|1 comments
131.
Priv8: sandboxed tabs for multi login et al. (Firefox addon)(143th.net)
2 points by fbender 12y ago|0 comments
132.
by fbender 12y ago
That's the spirit of FirefoxOS – any other prior concept still used "native" stuff while in FirefoxOS, "native" is the Web!
133.
by fbender 12y ago
RHUs are in no way comparable to RTGs: They are basically very small amounts of radioactive material fully enclosed in a thermally conductive container. Think of it as an always warm pebble stone. They are unregulated sources of (almost) co
134.
by fbender 12y ago
(Aerospace engineer/student here) While there were certainly some political aspects to the question, there were other more pressing reasons to not pursue an RTG design. First and foremost (as others have pointed out) is the lack of kno
135.
by fbender 13y ago
You can do that with the help of `document.createDocumentFragment()`.