Everything posted by MigL
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Dimethylmercury question.
Why are you cleaning the back of your mirror, instead of the glass side ?
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Correction hijack (Sharia in the US)
The Western world has been trying to separate Democratic Government from Religion, for hundreds of years. And many members who are defending Sharia Law, also oppose the large influence Southern Baptists have over the current American Government. I do not agree with the way things are done in many other countries, simply because it's their 'way of life'. It can be 'wrong' ( to me ) even if it is their heritage; and why I choose not to live there ( as do many of their people ).
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< 2 Minutes to Midnight
Well, this wasn't at all related to New Year's eve ...
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High wings, low wings...
High wing aircraft tend to be more stable, as the mass is underslung, rather than balanced atop, the lifting surfaces. I have heard of this called the 'pendulum', or the Keel, effect. Stability can be compensated for by other means ( dihedral ), so it's not really a deciding factor; other things, like length of the landing gear, or ,having to fuselage mount the landing gear in drag producing fairings, are. On the other hand, most transport aircraft, or any other where access to the fuselage for loading from ground level, is needed, tend to have high wing mounting. This is usually done with a bulkhead accommodating the carry-through structure, so it is a lot stronger, and doesn't need the drag inducing struts/braces, as in the above pictures.
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Office Chairs
Don't get a reclining chair like our work chairs ( look like your 1st image, but $800 a pop ). Temptation in is always there to recline, and catch a few zzzs.
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purpose of planets
To be fair, we don't know of any lifeless planets. There are places on Earth which were thought to be lifeless until recently. All we know for sure, is that there are planets that don't support 'our kind' of life, in the universe. But 'other kinds' of life … we're not so sure. Mostly, however,planets do serve a purpose. To stand on.
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U.S. presidential election modelling
But you are looking at it from the point of view of a left wing urban dweller. Try putting on their shoes, and recognize what's important to them. I'm talking about coal miners in West Virginia and Wyoming, who are losing jobs with no replacements in sight. I'm talking about farmers in the mid-west where farming has become big business, and local farmers have been pushed out. Or older people in Florida and Arizona, who have worked hard all their lives, and have to get by on a pension which is less than what is paid to younger people ( some of whom never work ) by social assistance. Or people who go fight for their country, and risk their very lives, so that some left wing urban dwellers have the right to protest them ( and call them murderers ), deny them jobs, and take away their veteran's benefits. These disillusioned people, whether right or wrong in their grievances, are easily taken advantage of by hucksters like D Trump; and we end up with the situation we've had the last 4 years. The Democrats, and J Biden are now lawmakers and the President of these people also. Don't ignore them, or else 2024 is going to be another bad year.
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The Red Wide-Open Spaces of the USA
Like your post also INow. It illustrates simple facts extremely well, and the Republicans have managed to work it to their favor. But the one fact that is not apparent to any of us, nor to either Political party, is the huge chasm between what is important to rural voters, as opposed to urban voters. If democrats start to address the grievances of rural voters, they might color some of those large swathes of red areas blue. ( I really don't think its lack of information, or D Trump's attractive personality ) And the Republicans would have to either fold, or change
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The nature of light and the size of the Universe.
Obviously aliens. And I can post twice as much evidence as you did. ( 2 x 0 = 0 ) If our orbital speed was wrong, accurately sending probes to Venus and Mars, as well as fly-bys of Jupiter, Saturn, Neptune and Uranus, would be extremely difficult. Is that why you posted those conspiracy photos of Martian landscapes; you think probes didn't actually land/fly by there ? I wonder where those photos of the Jupiter fly by, from JUNO, New Horizons, Cassini-Huygens, Ulysses, Galileo, and Voyagers 1, 2, 10, and 11, came from ? ( with Voyager 2 doing fly bys of all four gas giants ) List of missions to the outer planets - Wikipedia If one calculates the orbital speed of the Earth around the Sun, it is in close agreement with observed values. If the observed values are wrong, then the calculated values must be wrong, and the masses of the Earth and the Sun are wrong. Is that why your graphic shows different sizes for the Earth and Sun ? Yet a calculation using that mass of the Earth, and its radius, which you say is wrong, yields the appropriate value of the acceleration due to gravity, g . And that seems to be exactly the measured value of g , since at least the time of Galileo. Gravity of Earth - Wikipedia I wonder what value you get using your values for mass and radius of the Earth ?
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U.S. presidential election modelling
If by moderate you mean centrist, one only has to look at the graphs provided by INow, a few posts back, that show how much further apart Democrats and republicans are. You will note that the previously bell shaped graphs are currently skewed right for Republicans, AND skewed left for Democrats. Which means a larger portion of people are leaning towards the extremist fringe, in BOTH camps. The only difference is that the extremist fringe of the Republicans are Tea Party descendants, and a generally nasty bunch of characters. Even N Gingrich, the Republican everyone loved to hate, has now become a relative 'centrist', and imploring M McConnel to allow a vote on the $2000 payouts for Covid relief, without the added conditions.
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The nature of light and the size of the Universe.
What a coincidence ! The minimum temperature, -273.150, when added to the CMB radiation ( relic from 13.4 Billion years ago ) of 2.70. gives your value for the temperature of outer space, -270.450. You see, this stuff is well known, and not a coincidence at all. To you these are coincidences, and explained only by conspiracy theories, and Medieval celestial spheres. To others, they are simply the result of orbital mechanics.
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How does one compute the sideways velocity of a planet?
I'm still very confused. There are two velocities experienced by an orbiting body, in spherical polar coordinates ( for simplicity ). There is the angular component, the change in the angles of SP coordinates, which is also known as the orbital speed. This speed varies somewhat, to satisfy Kepler's orbital equation, but is approx. 30 km/s ( rounded off ! ). The radial component of SP coordinates also changes, going from positive to negative, since the orbit is slightly elliptical But it is very slight, and there is no net ( around the whole orbit ) change of radius, or else the orbit would be either decaying, or escaping. Can you please tell us which 'change of distance', per unit time, refers to the velocity you want to know about ????
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The nature of light and the size of the Universe.
The moon is approx. 2.5 light seconds away for a round trip. There is a mirror ( previously left ) on the moon. A laser , shining on that mirror, and detected on Earth again , shows no red shift. This is an easy to perform experiment, with any University lab equipment. Knock yourself out. Maybe if we went through the equations you've provided we might see where you made your mistake. Oh wait … You haven't provided any ! And of course having stars obscured by gas/dust clouds or galaxies that have ejected their central BH ( or simply formed without one ) is much too simple an explanation. You have to go back to the concept of a medieval celestial sphere located on the Oort cloud. Exactly what lies beyond the Oort cloud, then ? And how do our laws of motion work, then ? And, you use pop-sci articles that hint at 'conspiracies' as your evidence ?
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How does one compute the sideways velocity of a planet?
I'm sure a published Cosmologist would know that light 'bends' around massive objects because TIME and space are curved, not just space. There is a difference between 'accurate' and 'snide'.
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The nature of light and the size of the Universe.
Aether 'wind' is a misnomer ( and M-M doesn't consider resistance to light, but to the Earth ). It simply means the aether is moving relative to the Earth. Whether it is the aether moving past the Earth, or the Earth moving past the aether, makes no difference. You will still get misalignment in the M-M experiment. None was found. Either the aether is 'stiffer' than diamond, but offers no resistance to objects passing through it ( an impossibility ). Or it simply doesn't exist !
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How does one compute the sideways velocity of a planet?
I would agree. There is an angular speed, the orbital speed of 30 km/s. But there cannot be a radial velocity, otherwise the orbital radius would change at that rate. Then explain yourself better. We are confused as to exactly what you are asking. I'm sure the writings of a published Cosmologist should be much clearer.
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New model of the Universe.
Really ? We ask for evidence, and we get … conspiracy theories ??? I'm starting to think this isn't the right forum for you.
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The nature of light and the size of the Universe.
So … impossible to prove or detect. That means it has no affect on anything else, or it could be detected indirectly. And if it doesn't affect anything, what is the point of having it in the model ? Maybe you should post your ideas in the Religion section. God is also impossible to prove or detect, and why so many people have no need of Him. Just like the aether.
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New model of the Universe.
I don't think anyone has ever observed the orbits of Mercury and Venus behaving in the fashion that would indicate they were orbiting the sun as it orbits around a common CoM with the Earth. Mercury's orbit has been studied extensively, and is a 'foundational pillar' of GR. Probes have been sent to Venus; I doubt that could be done if we had the orbit all wrong. So, again, you are presenting assertions. Where is the evidence ???
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The nature of light and the size of the Universe.
Saying it ( no matter how many times ) does not make it true. Evidence please !
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DNS error... ethernet connected, no internet :-(
I have AVG ant-virus on some of my Win10 computers, and when AVG does an update, it locks me out of internet access, for some reason. Eventually, it crashes my connection to the router/modem. I have given up trying to find the problem, and simply disconnect power to the router/modem, and let them re-establish the network. My 'house' phone is an internet phone, so when I've got no dial tone, I know there's a problem with the network. Maybe I should just switch all my computers to Avast anti-virus, as they don't seem to give me any problems.
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Big bang expansion (split from Time is a bubble)
No. That balloon is a two dimensional representation of our universe, for ease of visualization. Our universe is, in effect, the SURFACE of that balloon ( reduced to just 2 dimensions ). And since the curvature of the universe is intrinsic, there is NO inside, and NO outside.
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To abstract or not to abstract
This is a forum where we engage in discussion for entertainment, and to expand our knowledge ( about science ). You have faith ? That's fine; no-one is trying to 'convert' you. But you have to understand that this is science, and this is how it works; it is based on evidence, repeatable experiments and observations, not faith. We don't tell you how to practice your faith; don't tell us how science is conducted. Why do you think it is OK to 'wrestle' with us, and to try and 'convert' us ?
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New model of the Universe.
I'm extremely confused by all this. Maybe a language issue ? You talk about the Big Bang, and movements of continental plates as if they are comparable time scales, and at the same time. I could see if you were talking about solar system formation as this might relate to the Earth's make up, but the Big Bang event was about 9 billion years earlier. We have theoretical grounds to believe light does not require a medium, and ( assuming no interactions ) unlimited lifetime. Unlike you, however, we have plenty of experimental and observational evidence to support our theories.
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The nature of light and the size of the Universe.
There are certain measurements and observations we can make, such as measuring the speed of light. To account for this speed, any medium must be extremely 'stiff', yet at the same time must allow motion through it with no resistance whatsoever, such that the M-M experiment yields aligned fringes. These are two contradicting requirements for the 'aether', and current theories work just fine ( as a matter of fact, excellent ) without it. Hence, it is of no use, and has been long discarded. What reason do you have to re-introduce it ?