Not to be overly pedantic, but the data were streamed from all over the world to a location in Europe, then processed, and then streamed to China for viewing.
Even though they weren't going over the public net, that's still almost certainly >1000ms latency. Harldy "real time".
Yes, you are being overly pedantic. ANY digital system is going to have some sort of delay due to wire lengths etc - we are just moving to longer wires. The time to send the data from Aus to the Netherlands is 170 msec (measured RTT 340 msec). The data processor runs with the clock running roughly 1 seconds slow. Why is this any less "realtime" than say a 10msec delay. The displaying to China is not really relevant - that was just to show some people at a conference it really was happening.
Given I was the one that actually did the calculation (or to be precise looked through the schedule file to find the distance pre-computed), I can assure you that the distance is "direct" distance, not some sort of distance over the surface. No astronomer would ever consider thinking about surface distances as that makes no sense at all.
I have always been amazed that swearing, nudity and sex is heavily regulated on TV and violence is not. Surely showing someone killing or whatever is much worse than a bit a boob being shown.
This is old news - it was demonstrated (at least privately) two days ago, not yesterday!!!!
Unfortunately I missed my only chance of slashdot fame by deciding to drink beer at our staff Christmas party rather than witness the demonstration. Oh well
This is astronomy. Astronomers are generally happy getting thing to an order of magnitude. I am not sure one supernova that is twice as bright is going to change things that much.
Disclaimers: IRAAA (I really am an astronomer), but I know nothing about using SN as standard candles (other than the fact that they are used...). No, I did not RTFA.
Really why woud you care? If your keeping sensitive information in your bookmarks list then your a fool. Personally I have been copying my bookmarks.html to ~/publcic_html for years. Its very handy when using someone elses computer and trying to remeber a URL. (Actually it was more useful in the pre-google days. These days I mostly find the URL via goodle anyhow).
The margin of sampling error was reported to be plus or minus 2.51 percentage points.
Quoting the error to this precision shows the investigators do not have the slightest clue about statistics. 0.01% of the sample size is a 0.15 fraction of a person...
Oops your right - it is normal practice in Astronomy to put North at the top of the image and East in *right* (the opposite of maps). This is such a common thing I didn't even think to look at the North arrow on the picture.
"Looks like they goofed in one of the images, though--the arrow points to a different bright spot on the before-and-after image than it does on the main and annotated images."
I don't think so. Looking at the pics its the same one in both. I think the submitter is confused as there is a large similar looking nebula in the south-east (bottom left, which *is* south-east)
Assuming you are a postgrad student and not actually being paid to administer the system, you really should be spending your time doing your study/research instead of tweaking the last 10% out of your applications. It really isn't worth the bother. And it is hardly an achievement to add to your cv ("I know how to type./configure;make;make install"). As someone who had to do this for a Solaris network in the days before packages, I can tell you what I would be doing given a second chance...
though not necessarily capable of the highest resolution (the USA's Very Large Baseline
Interferometer currently holds that record).
Bzzz. Wrong. Typical american inward looking attitude. The VLBA (Very Large Baseline ARRAY) does VLBI (Very LONG Baseline Interferometry) combined with the European VLBI Network (EVN) to make a telescope the size of the Earths diameter.
But even this is not good enough, the Japanese VSOP project does VLBI between Earth based telescopes and a radio telescope in orbit. http://www.jive.nl/jive/evn http://www.vsop.isas.ac.jp
Most Australian astronomers would be offended by this. They are not ignoring the skies nor are the many other astronomers working with southern telescopes. Sure the biggest telescopes are in the north but this hardly means the rest is ignored
Every radio astronomer on the planet has breathed a sigh of relief now that Iridium is officially doomed. Projects like this cause immense frequency pollution and are a huge problems for astronomical observatories, particularly as bigger more sensitive instruments are built.Project like Iridium are hated by radio astronomers the same way optical astronomers have in recent times been alarmed by proposals for orbiting mirrors to reflect sunlight at night. Without continuation of basic sciences such as astronomy technological progress will falter badly.
Slashdot Mirror
Not to be overly pedantic, but the data were streamed from all over the world to a location in Europe, then processed, and then streamed to China for viewing.
Even though they weren't going over the public net, that's still almost certainly >1000ms latency. Harldy "real time".
Yes, you are being overly pedantic. ANY digital system is going to have some sort of delay due to wire lengths etc - we are just moving to longer wires. The time to send the data from Aus to the Netherlands is 170 msec (measured RTT 340 msec). The data processor runs with the clock running roughly 1 seconds slow. Why is this any less "realtime" than say a 10msec delay. The displaying to China is not really relevant - that was just to show some people at a conference it really was happening.
Given I was the one that actually did the calculation (or to be precise looked through the schedule file to find the distance pre-computed), I can assure you that the distance is "direct" distance, not some sort of distance over the surface. No astronomer would ever consider thinking about surface distances as that makes no sense at all.
I have always been amazed that swearing, nudity and sex is heavily regulated on TV and violence is not. Surely showing someone killing or whatever is much worse than a bit a boob being shown.
Well at least once its dead...
Isn't this a dupe from a few months ago??
This is old news - it was demonstrated (at least privately) two days ago, not yesterday!!!!
Unfortunately I missed my only chance of slashdot fame by deciding to drink beer at our staff Christmas party rather than witness the demonstration. Oh well
This is astronomy. Astronomers are generally happy getting thing to an order of magnitude. I am not sure one supernova that is twice as bright is going to change things that much.
Disclaimers: IRAAA (I really am an astronomer), but I know nothing about using SN as standard candles (other than the fact that they are used...). No, I did not RTFA.
Really why woud you care? If your keeping sensitive information in your bookmarks list then your a fool. Personally I have been copying my bookmarks.html to ~/publcic_html for years. Its very handy when using someone elses computer and trying to remeber a URL. (Actually it was more useful in the pre-google days. These days I mostly find the URL via goodle anyhow).
Rob, hire this guy and others like him to make your site a non-joke.
If this site is so bad, why are u here reading and posting comments??
The link looks like it is just a way of someone trying to advertise their new product. Anyone else think they are just trying to raise money...?
The margin of sampling error was reported to be plus or minus 2.51 percentage points.
Quoting the error to this precision shows the investigators do not have the slightest clue about statistics. 0.01% of the sample size is a 0.15 fraction of a person...
Oops your right - it is normal practice in Astronomy to put North at the top of the image and East in *right* (the opposite of maps). This is such a common thing I didn't even think to look at the North arrow on the picture.
"Looks like they goofed in one of the images, though--the arrow points to a different bright spot on the before-and-after image than it does on the main and annotated images."
I don't think so. Looking at the pics its the same one in both. I think the submitter is confused as there is a large similar looking nebula in the south-east (bottom left, which *is* south-east)
Assuming you are a postgrad student and not actually being paid to administer the system, you really should be spending your time doing your study/research instead of tweaking the last 10% out of your applications. It really isn't worth the bother. And it is hardly an achievement to add to your cv ("I know how to type ./configure;make;make install"). As someone who had to do this for a Solaris network in the days before packages, I can tell you what I would be doing given a second chance...
though not necessarily capable of the highest resolution (the USA's Very Large Baseline Interferometer currently holds that record).
Bzzz. Wrong. Typical american inward looking attitude. The VLBA (Very Large Baseline ARRAY) does VLBI (Very LONG Baseline Interferometry) combined with the European VLBI Network (EVN) to make a telescope the size of the Earths diameter. But even this is not good enough, the Japanese VSOP project does VLBI between Earth based telescopes and a radio telescope in orbit.
http://www.jive.nl/jive/evn
http://www.vsop.isas.ac.jp
Most Australian astronomers would be offended by this. They are not ignoring the skies nor are the many other astronomers working with southern telescopes. Sure the biggest telescopes are in the north but this hardly means the rest is ignored
Its smaller (a *lot* smaller). Compared to SKA its tiny.
Every radio astronomer on the planet has breathed
a sigh of relief now that Iridium is officially
doomed. Projects like this cause immense frequency
pollution and are a huge problems for astronomical
observatories, particularly as bigger more sensitive instruments are built.Project like Iridium are hated by radio astronomers the same way optical astronomers have in recent times been alarmed by proposals for orbiting mirrors to reflect sunlight at night. Without continuation of basic sciences such as astronomy
technological progress will falter badly.