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Everything posted by Outrider

  1. First Interstellar Asteroid Observed

    We may now have an orgin for Oumuamua and its not as far away as first thought. Postdoctoral fellow Fabo Feng of the University of Hertfordshire claims that Oumuamua comes from a loose Stellar Association known as the Local Association which is part of Pleiades. https://theconversation.com/how-i-discovered-the-origins-of-the-cigar-shaped-alien-asteroid-oumuamua-89577 Also consensus has been building that Oumuamua is a comet with a cosmic ray baked on shell of hard rock with an icy core.
  2. The Panoramic Survey Telescope and Rapid Response System (Pan-STARRS) in Hawaii has discovered a visitor from afar. Pan-STARRS primary mission is to detect near earth objects that pose an impact threat but sometimes they get to do fun science like this. The asteroid seems to come from the constellation Lyra, but the exact origin is still unknown. It has been named Oumuamua, Hawaiian for “a messenger from afar arriving first” and they think it has traveled millions of years to visit us. https://www.theverge.com/2017/11/20/16679890/interstellar-asteroid-oumuamua-pan-starrs-solar-system http://www.eso.org/public/news/eso1737/ From the second link:
  3. Exoplanet discoveries

    Which makes some people like me and Fermi wonder where they are at. Maybe it will turn out that the UFO nuts were right all along. Yes I do as well. If Breakthrough Starshot stays on schedule (they won't) I will be 96 when the data starts coming in. I doubt I will make it. OTOH I am very grateful for what I have got to see. The Voyager spacecraft forever changed our views of the moons of gas and ice giants. I got to see Shoemaker-Levy slam into Jupiter. Recently we had a vistor from another star system Oumuamua. And its been confirmed that black holes do merger and neutron star mergers are the source of much (probaly all) of our heaviest elements. Its been a fine ride and I can't complain but sometimes I still do. I guess of all the upcoming things that I probably will see JWST excites me the most.
  4. Exoplanet discoveries

    Ok that makes more sense than what I said. From wiki (I'll post a link later) "A phased array of ground-based lasers would then focus a light beam on the crafts' sails to accelerate them one by one to the target speed within 10 minutes, with an average acceleration on the order of 100 km/s2, and an illumination energy on the order of 1 TJ delivered to each sail" Thats gonna be about 100 gigawatt for 10 minutes for each of 1,000 craft or the average output of a nuclear plant for seven days. Wiki says one by one but I have read other articles stating they might have 10 or more probes per sail. 3.5 x 3.5 cm and weighs 4 grams. But the Sprite is the prototype. The probe that actually makes the journey will be named StarChip and be 1 centimeter square and weigh 1 gram. The Sprite is solar powered and uses radio to communicate. StarChip will have a battery and use laser to communicate. 4 cameras, 4 processors, 4 thrusters, battery, navigation equipment and a laser for communication are planned. Launch is scheduled for 2036. I got most of that information from here. https://en.m.wikipedia.org/wiki/Breakthrough_Starshot I don't know and I don't know how they plan to direct the cameras from over 4 ly away. I suspect the probes are on their own once they are accelerated. A 150 mg atomic battery, powered by plutonium-238 or americium-241, is planned.
  5. Time and speed and how speed impacts time

    Because the resting clock is moving through time only while the moving clock is moving through time and space? X-posted with geordief
  6. Happy holidays from SFN

    Happy New Year!
  7. Exoplanet discoveries

    Yeah, there are plans on the table but nothing AFAIK green lighted so far. http://www.space.com/37952-hunting-second-earth-next-generation-telescopes.html Hubble's primary mirror is 2.4 meters in diameter and JWST's is 6.5 meters. So not quite 10 times as big but still a big step up. I wonder will I still be around to see it. Well the Breakthrough Starshot team is looking for one fifth the speed of light using nanoprobes called Sprites. Funded by billionaire Yuri Milner and guided by Facebook guru Marc Zuckerberg and Stephen Hawking. The team have 5 or 6 sprites in orbit right now testing the telemetry and electronics. At 1/5 the speed of light they could reach Proxima Centauri in 20 years. We could start receiving data in 24 years. Not bad! The Sprites will utilize solar sails driven by a high power laser. This is the biggest problem. How do you power this laser for 20+ years? One of the other big problems is the Sprites have no brakes. How do you image planets as you fly by at 100 million MPH? https://breakthroughinitiatives.org/initiative/3
  8. Time and speed and how speed impacts time

    Yep that too but the first thing I had to loose was the notion that there was something special about the clocks. Exactly!
  9. I think you are doing fine on your own. I didn't really like Blindfold my ICE but the other four are great. Sorry I'm not more help but I got nothing.
  10. Time and speed and how speed impacts time

    This was very hard for me to wrap my mind around as well. Its not just the clocks everything is moving at a different rate including ageing processes. If you look out at earth from your spaceship traveling at near light speed not only will you see clocks moving slower but the people will be moving slowly as well.
  11. Exoplanet discoveries

    They are not being deceptive. They have different criteria. As it turns out my explanation was deficient. https://exoplanetarchive.ipac.caltech.edu/docs/exoplanet_criteria.html Maybe thats stupid to you but I really don't see it that way.
  12. Exoplanet discoveries

    Except that it is. https://www.seeker.com/exoplanet-count-blasts-through-the-1000-barrier-1767964789.html
  13. Exoplanet discoveries

    The Paris catalog adds an exoplanet as soon as an announcement is made. NASA only lists them after they have been published in a scientific journal. "No later than" launch date as opposed to the working launch date of March. I too am very excited to see these missions inching closer. A bit miffed as well the JWST original launch date was 2013 and just last spring it was slated for October of this year. TESS has suffered similar setbacks but appears to be on track for now. I know. These are big one shot missions and its important they get everything right. If JWST lives up to its potential it should go a long ways in telling us how empty or how crowded our galaxy is. JWST is expected to give us spectroscopy of exoplanets.
  14. Powerful Men, Beautiful Women, and Sex

    Not at all it's just if women are being abused because of the clothes they wear I would like to see some proof. By personal did you mean personal attack? I honestly have no idea why you would take it that way.
  15. Powerful Men, Beautiful Women, and Sex

    Having raised a fine young lady there did come a time when I needed to have just that talk with her. It was appropriate that I did so. But in the context of this thread it is highly inappropriate to bring it up. I hear this often and I often ask for a real life example of a woman getting raped due to her attire. Nobody ever gives me one. Would you like to be the first?
  16. Powerful Men, Beautiful Women, and Sex

    And the excuse is always "the defendant deserves a vigorous defence." So is it now time to set some rules in place to stop the victim blaming defence? I think so. https://m.themorningbulletin.com.au/news/woman-who-was-gang-raped-as-a-teenager-calls-to-st/3245561/
  17. Shrooms rule!

    Great vid! It is part of the PBS Eons series. I had not seen this particular one before or encountered this idea. Very interesting.
  18. Is most life locked in ice?

    It's all good. I really enjoyed your article and hope you read mine. I have been fascinated with Europa and Enceladus for some time now. They are so much more interesting to me than all the other "worlds" in our solar system. I sure would like to know what is under all that ice. Is anybody ok with us sticking a drill in? Anybody not ok with it? I mean we have already mucked up one habitable world. I am on the fence myself.
  19. Bad news indeed if it happens. https://www.reuters.com/article/us-usa-internet-exclusive/exclusive-u-s-agency-to-vote-to-repeal-net-neutrality-rules-fcc-chief-idUSKBN1DL21A
  20. So in three days time I have a decision to make. Roy Moore (R) or Doug Jones (D) for Alabama Senate seat. Due to the allegations against RM it is an easy decision (for me) to make. DJ will get my vote. Although there is no evidence against him and these 8 or 9 ladies have been sitting on this for a long time. I will in no way risk casting my vote for a predator. Is this fair to RM? Well if he is innocent (probably never know for sure) it isn't fair at all and that bothers me not in the least. Due to his aspirations he should expect this treatment and accept it gracefully. He should have stepped down. So my question for those who voted for Hillary Rodham Clinton is why didn't you feel the same way? Do you really believe she is innocent of all charges? I don't. Even if you think she is innocent on all counts how could you not take into account the large portion of U.S. citizens who think she is a crook and run another candidate? Please do not let this devolve into a debate over HRC's guilt or innocence. If you want to do that one of us can open a thread. Please just answer honestly and if enough people genuinely think she is innocent I will probably open that thread. This harks back to the title (well half of it anyway) of the thread. Why doesn't truth matter? See when I talk to people in real life most of the time they agree that Trump or Clinton was a horrible choice. Then they justify their choice. I would like us to get where we just don't tolerate certain actions from our candidates. Cross this line and you are done. We can perhaps debate where the line should be but we need to have one. If we do this I think we will see the middle ground is not so hard to find after all.
  21. In Bama no less I am proud of my of my fellow statespersons right now. I know it was not easy for any of us. Maybe a bright new day, I hope so.
  22. I said on this very page looks like unpopular candidates all the way around. I can't call you wrong.
  23. I gave you both a national poll and a poll of democrats. We are not back in 2015 and both your charts are supporting what I have said. In particular the bottom on shows that only 40 percent of her own party saw her as strongly favorable while they were out voting for her in the millions. What is that a concession of?
  24. FCC possibly to repeal "net neutrality" rules.

    https://www.savetheinternet.com/net-neutrality-what-you-need-know-now What concerns me is the big corporations are going to have even more control over information flow.
  25. How bout this. Typical political discussion on the internet and in the White House and in all of US Congress no one concedes anything it might show weakness.