sjburt

31 ms·

301.
by sjburt 10y ago
Most buildings in the US use warm air. This means the same ducts can be used for both heating and cooling. There will be a central gas (or less frequently, oil) furnace or a heat pump. I think that switch occurred in the 1950s. Older homes
302.
SpaceX first reflight of Falcon 9 1st stage to occur Thursday(parabolicarc.com)
4 points by sjburt 10y ago|0 comments
303.
by sjburt 10y ago
It's a useful tool to determine how well-edited the source is.
304.
by sjburt 10y ago
I don't know the exact details of DHS and UCSIS but typically, the number of employees is set by the Federal Budget and the have may have limited flexibility to hire more. To do something like that there would probably have to be speci
305.
by sjburt 10y ago
In the case of the Planet satellites, they will be spread out using differential drag over the next few months. https://arxiv.org/pdf/1509.03270.pdf
306.
by sjburt 10y ago
You can follow https://twitter.com/dovesinspace as Planet attempts to contact the 88 Dove satellites on this launch. So far 71 have been contacted.
307.
by sjburt 10y ago
In California the plates stay with the car, not the owner. Other states are different.
308.
by sjburt 10y ago
That permit covers Tesla to operate vehicles in an automated mode, not individuals operating Teslas using that various assistance features.
309.
by sjburt 10y ago
How is the manner in which the Uber vehicles are being operated any different than an ordinary Tesla owner using the assist features of the Tesla?
310.
by sjburt 10y ago
There is a venture, Cannae, that is attempting to launch a Cubesat with an incarnation of this device. I'm not sure if they're funded, but the cost for a mission of this type can be only a few hundred thousand US$, so it's no
311.
by sjburt 10y ago
Speaking as someone who has taken on a lot of hiring responsibility: the cost for rejecting a good applicant is 4-5 hours of my teams time while they interview someone else. The cost for accepting a bad applicant is several months of salary
312.
by sjburt 10y ago
I think the argument is that they are much less accessible to students with less privileged backgrounds. If one views the subsidy associated with the non-profit status as a form of education spending, it's fair to ask whether that is t
313.
by sjburt 10y ago
If he's driven it 100,000 miles in 2.5 years, and assuming 250 working days a year, it's only 160 miles a day, well within a Tesla's range. He can probably charge it fully at night and have plenty for each day.
314.
by sjburt 10y ago
Even weirder, the article claims to have been written by Chris Vickery, who discovered MacKeeper's unprotected user database(!). Did they hire him?
315.
by sjburt 10y ago
I think Oculus's attitude is actually fairly sensible for the position they are in.. First, the success of VR is an existential risk for Oculus. This is not true for Valve; Valve just doesn't want to be left behind (at least at a
316.
by sjburt 10y ago
Here's a 3hp model plane motor. It weighs 750g all up. http://www.hobbyking.com/hobbyking/store/__9969__Turnigy_26H... And here's 3hp electric motor (550g), although that's probably an unfair compar
317.
by sjburt 10y ago
The other challenge vs reciprocating engines is that a piston engine cylinder has two volumes; the area above the piston where combustion occurs, and the area below, where there isn't any combustion. So during the stroke, you can spray
318.
by sjburt 10y ago
Snowden does not have access to anything he leaked any more. He physically turned everything over before he left Hong Kong and did not bring copies with him to Russia. Since he's undoubtedly under surveillance in Russia, there's n
319.
by sjburt 11y ago
The real reason is the deals they have with the record labels. There's only 4 record labels, plus a block of indies that make a 5th, and they don't have any interest in picking a winner between the services, so everyone basically
320.
by sjburt 11y ago
With the explosion of commercial space in the past 30 years and the end of the Cold War, the space agencies are very concerned about this issue and there is a lot of tracking and cooperation. The regulatory process for launch is quite lengt
321.
by sjburt 11y ago
Not only that, but how can Apple say yes to the U.S. government and not say yes to the Chinese government or anyone else?
322.
by sjburt 11y ago
No, but we predict it to be essentially impossible to observe a graviton. http://arxiv.org/abs/gr-qc/0601043
323.
by sjburt 11y ago
It seems like another possibility is that Kodak selling fogged film represented an intelligence risk. Kodak distributes film internationally; an adversary could probably correlate production dates with atomic tests and learn about fallout q
324.
by sjburt 11y ago
There's lots of other factors besides compiler support and cost. There are some PIC devices with extreme low-power states that ARM can't really touch. It's also pretty common for special-purpose devices to include a small gen
325.
by sjburt 11y ago
It has a few compiler extensions that are very useful for small embedded development, but GCC won't add (eg an "at" keyword to let you place a symbol at a specific address). As for "why" nobody has done it, it'
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by sjburt 11y ago
I appreciate the reply. It looks like you updated the website to suggest downloading from github, which is a positive step (https, recognizable domain).
327.
by sjburt 11y ago
> Install > Linux required, 64-bit Ubuntu recommended. > cd ~/ && wget -qO- qira.me/dl | unxz | tar x && cd qira && ./install.sh uhh... no Seriously, if you want people to adopt your software,
328.
by sjburt 11y ago
If the incremental cost makes sense for 30 users, it makes sense for 30,000. And you have to put it in perspective: since their business is driving jitneys around the peninsula, acquiring thousands of vans per month would be a much bigger c
329.
by sjburt 11y ago
It's a bit difficult to tell from the videos, but it seems like the only one of those that was a production vehicle was the Nissan, and there was quite a bit of manual intervention (shifting into forward and reverse). To be fair, I don
330.
by sjburt 11y ago
Carmack invested about $2 million into Armadillo in its first 6 years. Elon invested $100 million in that time frame (actually, the first 4 years of SpaceX). Armadillo did OK actually, they just were on a completely different trajectory. It

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