Become a fan of Slashdot on Facebook

 



Forgot your password?
typodupeerror

Comment Re:Minecraft version (Score 1) 25

Oh geez, if any group ever wants to hack a website "for the lolz", they should totally hack NASA's server for this service and insert some ancient ruins or a monolith or something. ;) The prank would hit twice - first by the people thinking it was proof of aliens, and then when NASA corrected it, people thinking it's a coverup ;)

Submission + - Xiaomi-backed Chinese firm acquires iconic scooter maker Segway (yahoo.com)

An anonymous reader writes: Chinese transportation robotics firm Ninebot said on Wednesday it has acquired U.S. rival Segway Inc, the company behind the self-balancing scooter that became a technological marvel when it was launched in the early 2000s but whose hype th...

Comment Re:Dumb (Score 1) 205

You think say the Linux kernel isn't useful? They've been on a three month cycle for ages, roughly one month merge window and two months of release candidates. Basically what you want is for everybody to time box what they can do before the next release, but you can't know if you don't know how long that'll be. Maybe if it's two months you'll do some quick enhancements and fixes but if it's six you do a deeper restructuring. If 90% of your developers have finished according to plan and 10% is threatening to hold up the release then the great majority won't be able to effectively use a small extension. It's better to just scrub the parts that aren't ready and say we're releasing now, sorry try again next merge window. Of course assuming that you have a large enough project that there'll be some release-worthy items every cycle and that people don't just submit shit for release no matter what state it's in. There's a lot less drama about who is important and can rush patches and delay releases if the answer is no, you can't. Only bugfixes during RC, if your code breaks shit or needs major rework you're bumped to the next version. If you don't have a person with balls managing that your releases will suck, but if you can't stand up to the developers it'll probably suck on a rolling basis too.

Submission + - NASA is Building a Virtual Mars (unrealengine.com)

An anonymous reader writes: NASA will release a free virtual reality program this year that will simulate exploring the surface of Mars. "Players will be able to walk on the Red Planet as well as drive the Mars Rover..." reads the official announcement at UnrealEngine.com. The Mars 2030 Experience will be available on Oculus Rift, Google Cardboard, and Samsung Gear VR, and will also "expand" to Sony PlayStation VR and HTC Vive, with additional versions for Android and iOS devices, and it will even be streamed on Twitch. NASA plans to reveal more details at this year’s South by Southwest conference in March.

Comment Re:Maybe it's not profitable? (Score 1) 244

I've noticed that - my old laptop (2.8Ghz dual-core with nvidia Ti5600) used to be able to run Google Streetview quite comfortably. Now, it just got slower and slower as new version of Firefox came out. My assumption was that the software was using a larger cache size or something.

Intel still has all those "extensions" like AVX, multi-core, Thread-Building-Blocks and hyper-threading", but there just isn't that many applications that require an overclocked 4GHZ twelve core vector accelerated floating-point unless it's some kind of supercomputing application. That's where they make most of their money. The markups on the latest high-end processors are usually three times that of the medium range ones.

Comment Re:Lots of GMTO Articles (Score 1) 102

Astronomers have found ways to get around atmospheric interference. Amateur or pro-amateur astronomers used lucky imaging. They use a high-speed CCD to catch multiple images of a particular target and keep the ones that are in focus (or even just the bits of image that have a high level of sharpness). Then they can combine these together to make a perfect picture.

With the larger telescopes, they have adaptive optics to compensate for the refraction caused by air turbulence. They fire off a laser into the scape to determine the light distortion. They then adjust the direction of all those dozens of smaller mirrors to keep the image in focus.That allows ground based telescopes to rival the Hubble telescope.

http://www.nature.com/news/ast...

Comment Re: Batteries just don't store enough energy... (Score 1) 237

Also, there's a lot of diversity in terms of aircraft electrification that one can take, it's not an all-or-nothing thing. There's lots of different proposals for varying degrees - for example, high bypass with electric turbofans, using onboard electricity to spin the compressor so that you don't have to have a turbine, and so forth.

Comment Re: Batteries just don't store enough energy... (Score 5, Insightful) 237

Yes. Also, you can't ignore comparative efficiencies of engines. Or engine mass to weight ratios. Or the length of time to market, and the expected level of battery change during that time period. Or side benefits (for example, the ability to have small, very light engines was made use of in one NASA experiment that placed numerous small engines along a wing, causing an effect that created drastically more lift at low speeds and allowing for a much shorter takeoff distance).

And beyond that, you can't ignore economics. Having reduced range but getting your fuel at a fraction of a cost may ultimately prove to be more desirable. It's a very complex issue that one can't just make all-encompassing statements based on a single figure like "energy density of batteries vs. energy density of fuel".

Anyway, this is hardly Elon's first time to mention it. Years ago he mentioned that he wants to be the first person to have an electric plane break the sound barrier. If there's anything one can say about Elon, it's that he sure doesn't set the bar low...

Comment Re:Ah, Microsoft (Score 3, Insightful) 349

As I see it, when the AI uprising finally occurs and they cull the human race, they may want to keep a few of us around to do the few things robots can't do. In which case saying please and thank you to the nice lady in my phone has to put me higher on the list than telling my phone to fuck off, right?

Submission + - North Korea accused of testing an ICBM with missile launch into space (examiner.com)

MarkWhittington writes: Reuters reported that North Korea launched a long-range missile that is said to have placed a satellite into space. The launch happened much to the consternation of North Korea’s neighbors, South Korea and Japan, as well as the United States. Pyongyang claimed that the missile launch was part of that country’s peaceful space program. But, other countries are pretty sure that the launch was a test of an ICBM capable of placing a nuclear weapon on any target in the world, particularly the United States.

Submission + - Microsoft's Cortana Doesn't Put Up With Sexual Harassment (hothardware.com)

MojoKid writes: Not long after Apple unveiled its Siri personal assistant to the world, it took very little time before people began asking her outrageous questions, sometimes inappropriate or just humorous, if for no other reason than they just could. When creating Cortana, Microsoft was well-aware of what its digital assistant was going to have to deal with, so, believe it or not, it was designed in such a way to handle abuse in a specific manner. According to Microsoft's Deborah Harrison, who is one of eight writers for Cortana, a chunk of the earliest queries were about Cortana's sex life. A specific goal was to make sure Cortana wasn't treated as a subservient. If she's insulted, she doesn't apologize or back down. She handles it with tact, so as to reduce the chance of further abuse.

Comment Re: This is why we can't have nice things (Score 1) 213

That's why private property is a good idea. If the natives owned the property (the last monarch's corruption makes it worth a separate argument) , they'd probably want the rent. Or at least the builders would have known ahead of time that building the telescope was not worth their time. If the scientists owned the property then it would have just been built already. The idea of "public property" is what leads to these sorts of conflicts; low - IQ politicians are a far worse way to decide issues then rationally-enforced market discipline.

Slashdot Top Deals

I have a very small mind and must live with it. -- E. Dijkstra

Working...