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| nsh | .title http://phys.org/news/2015-04-absence-gravitational-wave-limit-knowable-universe.html | 01:35 |
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| yoleaux | Absence of gravitational-wave signal extends limit on knowable universe | 01:35 |
| nsh | -- | 01:36 |
| nsh | The Holometer team spent five years building the apparatus and minimizing noise sources to prepare for experimentation. Now the Holometer is taking data continuously, and with an hour's worth of data, physicists were able to confirm that there are no high-frequency gravitational waves at the magnitude where they were searching. | 01:36 |
| nsh | The absence of a signal provides valuable information about our universe. Although this result does not prove whether the exotic objects exist, it has eliminated the region of the universe where they could be present. | 01:36 |
| nsh | "It means that if there are primordial cosmic string loops or tiny black hole binaries, they have to be far away," Hogan said. "It puts a limit on how much of that stuff can be out there." | 01:36 |
| nsh | Detecting these high-frequency gravitational waves is a secondary goal of the Holometer. Its main purpose is to determine whether our universe acts like a 2-D hologram, where information is coded into two-dimensional bits at the Planck scale, a length around ten trillion trillion times smaller than an atom. That investigation is still in progress. | 01:36 |
| nsh | "For me, it's gratifying to be able to contribute something new to science," said researcher Bobby Lanza, who recently earned his Ph.D. conducting research on the Holometer. He is the lead author on an upcoming paper about the result. "It's part of chipping away at the whole picture of the universe." | 01:36 |
| nsh | -- (gravity waves are probably bollocks because GR is probably bollocks) | 01:36 |
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| Adlai | funny how we've come back to chasing ether | 06:42 |
| Adlai | (iirc the original purpose of the michelson interferometer was measuring the speed of earth relative to ether?) | 06:42 |
| kanzure | wasn't there a million and one flaws with their experiment's design | 07:47 |
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| kanzure | someone should make an open-source aquaponics analytics thing to dump data into graphite | 13:29 |
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| streety | is graphite still the best in class? Its website looks a little dated - http://graphite.wikidot.com/ Am I looking at the right site or is the lack of activity because its now feature complete? | 15:09 |
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| maaku | kanzure: who knows? maybe you can extract some climate information from the trace amounts of whatever left in the coal besides carbon | 17:10 |
| maaku | use fossil structure to somehow extract out the annual cycle and use them kinda like ice cores from antarctica/greenland, except hundreds of millions of years further in the past | 17:10 |
| maaku | or who knows what else. I'm sure if you got a dozen specialists in the room to look at the problems you'd get two dozen ideas | 17:11 |
| maaku | but instead we chop it up, crush it, and throw them in the furnace | 17:11 |
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| Extraterretre | hi | 17:13 |
| Extraterretre | hello | 17:13 |
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| --- Log closed Sun Apr 12 00:00:50 2015 | ||
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