typodupeerror

## Comment Re:Speed of gravity? (Score 1)294

It's not instantaneous, because the LIGO detectors saw a delay. You can't specifically say what the speed was because the delay depends on the speed and direction. But the detection is consistent with a wave travelling at the speed of light from a source in the southern sky.

## Comment Re:Anyone can answer? (Score 1)294

From various observations (and the theory of general relativity) we're pretty sure gravity propagates at the speed of light. You find gravity everywhere because it's already there, the same way that walking from a dark room into sunlight doesn't imply that light travels from the sun to your eyeballs instantaneously.

If the sun were suddenly dematerialized you would continue to see sunlight for another eight minutes. We are also fairly sure that the Earth would continue in it's orbit as if nothing had happened for eight minutes, until the gravitational effects of the disappearing sun had time to propagate.

## Comment Re:Cool! (Score 1)294

Since Newton we've made a variety of observations that we're fairly sure imply gravity propagates at a finite speed. If that's true, it's very difficult to construct a theory that doesn't include waves. Realistic MOND theories (i.e. more than just "GR is wrong.") include gravity waves, although they might disagree with relativity about how easy they are to detect.

## Comment Re:Cool! (Score 1)294

There's no way we're going to focus gravity waves any time soon. But (I think) you could build a gravity wave interferometer. LIGO effectively IS sort of a gravity wave interferometer right now, with the baseline between the two sites giving it the ability to determine the rough direction to the sources. If you wanted to build up an image you'd need a lot of LIGOs, but it would be possible. And awesome.

## Comment Re:Seriously?? (Score 1)138

I routinely use X forwarding on a 10 megabit LAN without any problems. More likely a poorly written application is to blame.

The problem is that an X application which is written correctly for local display (for example, taking advantage of hardware acceleration) is "poorly written" for running with a non-local X server, and vice-versa. To handle both cases well you have to implement two different UIs, which shows that X's much-vaunted "network transparency" isn't actually transparent at all.

## Comment Re:Seriously?? (Score 1)138

What people want is ssh -X and yes it is a top priority to many.

That, plus the ability to reconnect to the same session (Ã la screen), ...

In other words, what people really want is the functionality provided by xpra. The thing is, xpra would actually be easier to implement as a Wayland compositor than the current hack based on Xdummy or Xvfb.

## Comment Re:It's 2016 and I can't even easily run Wayland y (Score 1)138

For example there used to be a keystroke for killing grabs. They removed it claiming it was "unnecessary" because you only need it if there's a bug in an application.

They removed it because it was a security problem, not because it was "unnecessary". You could use it to bypass lock screens, which are implemented in part through screen grabs.

The AllowDeactivateGrabs and AllowClosedownGrabs options are available in xorg.conf if you want to restore the original insecure behavior.

## Comment Re:yeah, typo. ssh not vnc (Score 1)138

(By habit I normally seperate my flags since -AB can mean -A B, with B being an argument to A).

With separate flags that becomes "-A -B", with -B being an argument to -A. How is that better?

## Comment Re:Michelson-Morley were wrong. Ether exists (Score 2)294

We detected the electromagnetic ether a long time ago. Today we call it "the photon field." If we had a quantum field theory of gravity we'd call the gravity ether "the graviton field" but instead we settle for calling it spacetime.

## Comment Re:Applies to college students only (Score 3, Insightful)156

Like many psychological studies, I'd like to see the results replicated in different countries and different settings.

## Comment Re:Excess (Score 1)271

I thought that about carabou but info on it seems to be mixed on an ideological basis.

Government
Herds have declined a lot.

Hunters
Herds have declined a lot.

Liberals
http://mediamatters.org/blog/2...
Disaster! Woe is me! Caribous going extinct!

Conservatives
One herd has increased!

Conservatives
http://www.heritage.org/resear...
Mmmm. Pipelines good! Jobs jobs jobs! Pipelines good!

The MRC seems to paint a good picture but then you see it has cherry picked one particular herd, the Central Arctic caribou herd, and ignored a huge decline in other carabou herds!

"In 1977, as the Prudhoe region started delivering oil to America's southern 48 states, the Central Arctic caribou herd numbered 6,000; it has since grown to 27,128. "

It seems to me that the pipeline's benefit to carabou is a conservative fiction. Grrr. I used to be very conservative from 1980 to 1992. It upsets me that so many religious people lie by commission or omission on the conservative side.

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