Posts by SciManStev


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21) Message boards : Politics : Donald Trump for President? (Message 1770779)
Posted 10 Mar 2016 by Profile SciManStevProject donor
http://money.cnn.com/2016/03/10/news/trump-model-visas/index.html

Steve
22) Message boards : Number crunching : Windows 10 - Yea or Nay? (Message 1770322)
Posted 7 Mar 2016 by Profile SciManStevProject donor


I had wanted to post something about this a couple of days ago but forgot to... thanks for the reminder. :^)

It's probably update KB3140743 which has been implicated in causing many problems including BSODs, inability to boot even into Safe Mode, extreme slowdowns, etc.

Hope this helps, and would advise to disable automatic updates.

This is the update that has been giving me problems, and from what I read on Microsoft forums, I am not alone. In my case it won't install, but takes about 8 reboots, 4 of which fail, and 4 reset it to before the update, before it returns to normal, then tells me I need the update. :(
I expect it will be straightened out this week, but I really don't know.

Steve
23) Message boards : Number crunching : Windows 10 - Yea or Nay? (Message 1769018)
Posted 2 Mar 2016 by Profile SciManStevProject donor
Last night some Win 10 updates were available, so i installed them. Only one worked, and Windows said the other failed, and reversed it. It had to reboot several times before I finally could log on. In the process, it decided that my pdf viewer should be Edge, instead of Adobe Reader. I knew the latest Adobe Reader version had problems with another program I had, so I removed the latest, and installed the previous version, before the cloud system. I tried the failed update again, and the same thing happened. After numerous reboots, I logged on, and resumed crunching.

That was a real pain in the butt, and I wonder what will happen now that my system refuses to install these updates.

Steve
24) Message boards : SETI@home Science : What will you see on the BOINC screensaver if your computer discovers an alien message? (Message 1768815)
Posted 1 Mar 2016 by Profile SciManStevProject donor
Nothing definitive. The screen saver is just eye candy. It may find signals, but they first must be confirmed by your wingmen. Then they are eventually picked over by the seti servers, and determined if they are something interesting or not. Then, they may point the radio telescope back at the source, and see if the signals repeat. A determination of whether a signal is good may not occur for a lengthy time after your machine has calculated it. Since the screen saver, is just for us to have something to look at, most of us just turn it off, and let the extra computing power go to solving the equations, instead of producing eye candy.

Steve
25) Message boards : Science (non-SETI) : LIGO detected gravitational waves at last! (Message 1764385)
Posted 12 Feb 2016 by Profile SciManStevProject donor
Since mass-less gravitons, at extreme energy levels also propagate at light speed, this does not leave much room for the possibility of FTL travel.

Steve
26) Message boards : SETI@home Science : Scientific American: If There Are Aliens Out There, Where Are They? (Message 1762242)
Posted 4 Feb 2016 by Profile SciManStevProject donor
Photons are traditionally said to be massless. This is a figure of speech that physicists use to describe something about how a photon's particle-like properties are described by the language of special relativity.

It is almost certainly impossible to do any experiment that would establish the photon rest mass to be exactly zero. The best we can hope to do is place limits on it. A non-zero rest mass would introduce a small damping factor in the inverse square Coulomb law of electrostatic forces. That means the electrostatic force would be weaker over very large distances.
That is travel time for the astronauts. How many years pass on earth between departure and the return to earth?

At 85% light speed, there would be some relativistic effects, but not to bad. The real changes would be at over 95% light speed, increasing rapidly as light speed is approached.

Steve
27) Message boards : SETI@home Science : Scientific American: If There Are Aliens Out There, Where Are They? (Message 1762240)
Posted 4 Feb 2016 by Profile SciManStevProject donor
85% of light speed is quite acceptable. That means the nearest star could be reached in 5.3 years, say a 12 year round trip. So are these 85% designs feasible?

The design I read about has a scoop almost the size of the moon, that looks like a radio dish. In space, these is about 1 atom of hydrogen per the volume of a grape fruit. The scoop would gather the hydrogen, then fuse it releasing energy. the vessel would be self refueling, but the size would be enormous. I keep wondering what would happen if a micrometeorite or larger object hit it somewhere.


5.3 years if it doesn't takes years to accelerate up to speed and years to decelerate. That could possibly double, triple or more the time from what I understand.


That is very true. I don't think the human form could withstand much more than 1 G for lengthy amounts of time. I think the idea of Star Wars ships just zipping around, even at normal speeds would tear a person to pieces.

Steve
28) Message boards : SETI@home Science : Scientific American: If There Are Aliens Out There, Where Are They? (Message 1761948)
Posted 3 Feb 2016 by Profile SciManStevProject donor
A photon is a mass-less particle. If you add more energy to it, it just has more energy, but doesn't go any faster. Even light speed is tricky to obtain. Some of the best ship designs I have read about would only achieve about 85% light speed. most are around 15%. Interstellar travel does seem extremely difficult, but intergalactic travel seems inconceivable.

Steve
29) Message boards : SETI@home Science : Scientific American: If There Are Aliens Out There, Where Are They? (Message 1761904)
Posted 3 Feb 2016 by Profile SciManStevProject donor
The clue is to fool physics into thinking you have zero mass, then the restriction won't apply. Solve that one and FTL is there.


I don't think so. Even with zero mass, there is no way to accelerate beyond light speed. If you need a force such that with every action, there is an equal and opposite reaction, and no force exists to create that reaction, then mass doesn't matter.

Steve
30) Message boards : SETI@home Science : strange signal ? best pulse score: 1.06 (Message 1756596)
Posted 15 Jan 2016 by Profile SciManStevProject donor
We all get them.
http://setiathome.berkeley.edu/sci_status.html
What happens next, is that the results are run through another process, which has not been working lately to shift out possible candidates.
http://setiathome.berkeley.edu/forum_forum.php?id=830
Once we have identified a possible target, we take another data sample, analyze that, and see if it repeats.

The verification process for any given signal is very stringent.
The scientists running the project want to make sure we have something valid before we alert the world.

Steve
31) Message boards : Number crunching : Dumb Question(s) About Seti v8 (Message 1754015)
Posted 5 Jan 2016 by Profile SciManStevProject donor
It's not a dumb question, but I do know that Seti has had several huge outages in the past, and this is just a smaller one. It will all work out.

Steve
32) Message boards : News : SETI@home Version 8 has been released. (Message 1753368)
Posted 2 Jan 2016 by Profile SciManStevProject donor
Hi. Too bad Mac users still penalized for not being able to "show graphics" Thought it was to be a screen saver.

The screen saver just slows down data processing, and gives eye candy in return.

Steve
33) Message boards : Science (non-SETI) : Moon (Message 1752262)
Posted 29 Dec 2015 by Profile SciManStevProject donor
Lower stage boosters fall back to Earth, but a number of orbital stage boosters are still up there, all be it in decaying orbits.
Boosters are basically tubes, so could either be used as tubes, or sources of the sheet metal and composites they contain.
Further on the idea of scavenging space junk, what about solar panels from dead sattelites?

One issue I see about old solar panels, is that the new ones are much more efficient, and the output of all solar panels begins to decay after about 10 years. I am not sure if the materials can be recycled, but the panels themselves, most likely not worth the effort.

Steve
34) Message boards : Cafe SETI : Thinking of going SOLAR and/or WIND? (Message 1752250)
Posted 29 Dec 2015 by Profile SciManStevProject donor
The company I am currently buying power from just locked me in for 18 months at 10.19 cents per KWh, which means that with the Solar City plan, I would lose money for several years. That with all my other concerns has officially made going solar at this time impracticable. I have rejected the offer.

Steve


10,19 cents? Is that solely the energy cost? Would be an awful lot if it were..

Yes, transmission over the lines is additional, but for here, that is the lowest rate there is. Recently, I stopped crunching for a couple of months. I had my computer, chiller, and support hardware running, but it wasn't crunching. The savings in just electricity was $170 a month.

The 13.9 cents per KWh was higher from solar, and it was set to increase every year, while my current rate is not. I do understand that a lot of my bill is paying for the transmission of the electricity over the power lines, and electricity generated locally would not incur that delivery charge.

In the future, I may re-visit this, as i would really like renewable, energy independence. What SolarCity was offering me, just wasn't where I wanted to go yet. One of the worst aspects was that I could not use solar to supplement my generator in case of a power outage. by law, all solar contributions had to be shut off during a power outage, leaving me with just my generator, exactly as I do now in case of power outages.


Steve
35) Message boards : Cafe SETI : A CHRISTMAS MIRACLE!!! (Message 1749446)
Posted 15 Dec 2015 by Profile SciManStevProject donor
That is excellent news! I am so happy things are working out so well, and Sauron has come home!

Steve
36) Message boards : Number crunching : AVG creating havoc with seti rig (Message 1749223)
Posted 14 Dec 2015 by Profile SciManStevProject donor
I use ESET, and have installed it on hundreds of computer repairs. It usually bounces around the top 5 antivirus programs, but things can change from day to day. What I do like is two fold. First, it uses very few resources, and scans every file coming into or leaving your computer. Second I have never had a compatibility issue with either software of hardware. It is a perfect solution for me, and many of my previous customers. The last infection I got myself was close to 20 years ago.

Steve
37) Message boards : Science (non-SETI) : Enceladus (Message 1749215)
Posted 14 Dec 2015 by Profile SciManStevProject donor
One of the problems we are finding with Mars, is that now we know there has been running water on the surface, the rover isn't aloud to get any where near it, in case it brought some microbe(s) from earth. Even though decontamination was stringent, the slightest contamination could continue for thousands of years, and start a whole new evolutionary tree. At best, it may disguise any native life, and cloud the science. I would guess that any other exploration would have the same problem.

Steve

I suspect until we are able to build the craft entirely on the surface of the moon, in the hard vacuum, robotically, we won't be able to have some assurance it isn't contaminated. Extremophiles seem to be everywhere.


I don't really understand the fastidiousness about "perfection" with the robot cleanliness if plans are being made to send people to Mars.

I don't either, but perhaps they will come up with a method to test cleanly, before we do contaminate things. I can just imagine the first person to throw a cigarette butt out on the surface of mars.

Steve
38) Message boards : Science (non-SETI) : Enceladus (Message 1749203)
Posted 14 Dec 2015 by Profile SciManStevProject donor
One of the problems we are finding with Mars, is that now we know there has been running water on the surface, the rover isn't aloud to get any where near it, in case it brought some microbe(s) from earth. Even though decontamination was stringent, the slightest contamination could continue for thousands of years, and start a whole new evolutionary tree. At best, it may disguise any native life, and cloud the science. I would guess that any other exploration would have the same problem.

Steve
39) Message boards : Number crunching : Windows 10 - Yea or Nay? (Message 1747548)
Posted 7 Dec 2015 by Profile SciManStevProject donor
Just turn updates of.
You can still install important updates manual.
I have set my machine this way since the very first day.

Trust no one.

I may have to do that, but that means I have to keep logging into my fathers computer, and I never do that unless he knows I am doing so. I like it when I don't have to mess with his system, but at least he is back to Win 7 for now.

Steve
40) Message boards : Number crunching : Windows 10 - Yea or Nay? (Message 1747494)
Posted 7 Dec 2015 by Profile SciManStevProject donor
And I finally got my fathers machine back to Win 7. It seems Microsoft is planning on making it impossible for him to keep it that way. :(

Steve


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