Hacker Newsnew | past | comments | ask | show | jobs | submit | GravityWell's commentslogin

Thank goodness! Looking forward to the Pluto close-ups, which will hopefully include the dark spots.


Care to share some examples of dark energy evidence? If the evidence is a measurement of expansion, then it doesn't necessarily support the existence of dark energy.


One of the other major pieces of evidence for the existence of dark energy is the observation of baryon acoustic oscillations. The basic idea is that as the universe was forming, there were concentrations of dark matter. Standing sound waves of photons and baryons (ordinary matter) formed around these concentrations. After decoupling, the photons streamed away, but the baryons remained and eventually formed galaxies. This results in a characteristic pattern seen on the sky, where there are clusters of galaxies observed, and then rings of galaxies around them.

It is possible to calculate the physical size of these rings from first principles. Since you observe how big these rings appear on the sky, you can figure out how far away they are, and from this determine the expansion history of the universe.


> as the universe was forming, there were concentrations of dark matter. Standing sound waves of photons and baryons (ordinary matter) formed around these concentrations

You make it sound like "dark matter" is normal matter and the "ordinary matter" is the abnormal stuff, since ordinary matter formed afterwards and has more complex interactions in that it supplements gravitation with electromagnetism and what not. And of course there's far more dark matter than ordinary.


https://medium.com/starts-with-a-bang/five-reasons-we-think-...

While I'm not an astronomer, I think observations such as the the Bullet Cluster and the different position s for where the mass seems to be - including big changes in morphology, not just location - clearly indicates that something dark matter/energy-like must exist. The precise nature of this DM/DE is an a separate question.


> The number of compiler bugs is a bit scary.

I see similar lists for GCC when a branch is underway. I'm actually impressed with the number of active contributors, and I find the design very compelling. I'll be keeping an eye on this project.


This is extraordinarily useful and unique. My compliments to Backblaze for making this available. This is the type of empirical data I would love to have for as many things as possible: SSDs, monitors, TVs, kitchen appliances, tablets, cars, etc.


Note for those visiting the thread, I found one of the big things with this release is the support for Edit & Continue:

http://nodejstools.codeplex.com/releases/view/104141

https://www.youtube.com/watch?v=ZAroJmb6XY4

It was in the original title, but has been edited out.


I just fired up a NodejsConsoleApp project in VS 2013, created a few simple functions, set a breakpoint, and started stepping through. To be fair, I assumed Edit and Continue would work like it works for other .Net or Native projects, or like the old VB or even VBA.

1) "Set Next Statement" doesn't work, which is a pretty big part of E&C

2) I could change code and literals without stopping and restarting the debugging session. Each change causes the current statement to jump to the top of the current function, or to the first line if modifying code outside of any function. Local variables are reset, but globals retain their state.

3) Interestingly, I could change code in a function that does not have the focus, and nothing is reset, then step into that function.

I remember seeing something similar when V8 was being demoed and showed a "live edit" capability, so I guess NTVS has similar functionality.

It short, it sort of works, but it's not the same as E&C for .Net (C# or VB), C/C++ native code, or Office VBA.


I'm hardly an MS fanboy, and I'm not sure what announcements you're referring to, but it's hard for me to see a downside to this.


I had to see it to believe it, but here it is. https://www.youtube.com/watch?v=ZAroJmb6XY4


Interesting move by Valve, and another positive step in support of Linux.


The fact that #1 and #2 are Chromebooks is worth mentioning. I found that surprising.


It's not that surprising. These are the cheapest option if you want a decent computer.


You don't get to Windows until #4. The world has changed.


It really does. I always think Chromebook is pretty bad in this decade given how terrible Internet speed is outside your super fast office connection.


Really? I have a lot of complaints about ChromeOS (I have a chromebook, and nuked ChromeOS off of it), but that isn't one of them. Gigabit connections may be rare in the US, but some form of broadband is typically ubiquitous. You have to get pretty far out into the country before you find people who can only get dialup. Just a few Mbps is perfectly fine for ChromeOS purposes.


I guess I am saying reliable and extremely consistent speed. I mean using that at school is a challenge for a lot of people. I can't get fios yet and I am stuck with this inconsistent, horrible connection that works excellent only after midnight at home.

In general, that's very true for a lot of places in the US. While I can find a lot of free wifi in NYC these days, they are slow and some of them aren't secured either. So while chromeOS might be secure as OS, I still don't quite trust the connection.


One of the mysteries of HN and how stories do and don't make it to the top. It seems to me there is more attention to tabloid type stories lately.


Guidelines | FAQ | Lists | API | Security | Legal | Apply to YC | Contact

Search: