Posts by Earthcore

1) Message boards : SETI@home Science : Could we communicate via radiowaves through interstellar space? (Message 1861612)
Posted 15 Apr 2017 by Profile Earthcore
Post:
I think we humans not only will communicate but also explore the universe beyond interstellar space.
The means of doing that is quantum communication, i.e through entanglement, and sending small robotic spacecrafts. Probably also Van Neumann probes for planetary research whose information can be relayed home by quantum satellites.
That will give us the tools of observing and collecting knowledge in near real time regardless of distances long before we can travel ourself.
2) Message boards : Number crunching : Intel GPU Validation Inconclusive (Message 1808772)
Posted 12 Aug 2016 by Profile Earthcore
Post:
OK, but maybe someone in the project should talk with Intel to fix this problem.
3) Message boards : Number crunching : Intel GPU Validation Inconclusive (Message 1808768)
Posted 12 Aug 2016 by Profile Earthcore
Post:
After upgraded Intel HD Graphics 520 driver today, to 2016-07-25 version 21.20.16.4494, all work-units ends up with Computation Error (i.e. Beräkningsfel).

SETI@home 8.12 SETI@home v8 (opencl_intel_gpu_sah) 06mr09af.1650.18882.5.32.83_2 00:00:01 (00:00:01) 84,94 100,000 - 2016-10-04 11:14:45 0,00581C + 1 Intel GPU Beräkningsfel (5,)

What's wrong?
4) Message boards : News : Arecibo still threatened with closure. (Message 1797779)
Posted 21 Jun 2016 by Profile Earthcore
Post:
Thank you for correcting me regarding Arecibo tracking capability. But the conclusion stands. To get better sensitivity much longer integration time is needed. That will probably require development of a new receiver, data collection/storage and software for SETI@home, maybe as part of the Breakthrough Initiative.
5) Message boards : News : Arecibo still threatened with closure. (Message 1797597)
Posted 20 Jun 2016 by Profile Earthcore
Post:
If I calculate correctly Arecibo has about 10 dB more gain than Green Bank. Looking after modulated CW signals by cross correlation of two parallel receiver channels on the same frequency to get rid of the remaining noise it is then possible to do integration. Instead of integrating during 12 seconds, the time for a celestial object to travel the duration of the Arecibo dish, it should be possible with Green Bank looked on target to integrate up to about 40800 seconds per day, i.e. with Green Bank it should be possible to reach a lot further into space. Also for pulsed signals Green Bank have the advantage after post processing. In both cases of course you have to handle Radio Frequency Interference (RFI) another way. Still I will vote for more time on Green Bank not Arecibo.
6) Message boards : Number crunching : Intel GPU Validation Inconclusive (Message 1795361)
Posted 11 Jun 2016 by Profile Earthcore
Post:
I have the same problem with i5-6200U Skylake and Intel HD Graphics 520 OpenCL 2.0

Intel may have a bug in their GPU in terms of floating point processing?
7) Message boards : Science (non-SETI) : Very cool NASA video (Message 1500110)
Posted 5 Apr 2014 by Profile Earthcore
Post:
Failure is no option – FTL the engineering challenge of the millennium.

http://www.youtube.com/watch?v=9M8yht_ofHc
8) Message boards : Science (non-SETI) : Is the Universe One Giant Hologram? (Message 1474505)
Posted 9 Feb 2014 by Profile Earthcore
Post:
Video link to an interesting discussion

http://www.youtube.com/watch?v=NsbZT9bJ1s4
9) Message boards : Science (non-SETI) : Earliest Signs of Life on Earth (Message 1458183)
Posted 28 Dec 2013 by Profile Earthcore
Post:
Reflecting on the development of life.
SETI should implement a search strategy of the nearest neighbors first if we are ever to find ET. Nor any idea of wasting resources on galaxies 1-2 billion light years away.
10) Message boards : Science (non-SETI) : Earliest Signs of Life on Earth (Message 1457598)
Posted 26 Dec 2013 by Profile Earthcore
Post:
Fermis paradox explained. We are among the first. Interesting link.

http://www.technologyreview.com/view/513781/moores-law-and-the-origin-of-life/





 
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