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Spyman

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Everything posted by Spyman

  1. In addition to swansont's answer to the first question, straight lines are curved by gravity in accordance with Einstein's theory of Relativity, so light rays bends near massive bodies.
  2. This short Disney movie may be appropriate here:
  3. It would have to be a very remarkable accident if several individual systems goes off but the plane remains able to change course and continue to fly for more than seven hours. As I understand it those maneuvers was made by skilled pilots and if there was a problem but the plane could still be steered, then the pilots should opt to make an emergency landing where search and rescue would be swift and practical. It's certainly possible with a failed hijack, but even so, why choose and continue to fly in that direction? Regarding murderous intent, the 9/11 event clearly showed that hundreds of people can be killed just like that.
  4. Malaysian prime minister: Missing flight MH370 ended in Indian Ocean and no one on board survived /snip/ Mr Najib explained that new satellite data showed the Malaysian Airlines plane had flown through the southern corridor in the Indian Ocean, where its journey ended. /snip/ It is still unclear whether any wreckage has actually been recovered although searches are still ongoing... http://metro.co.uk/2014/03/24/malaysian-prime-minister-missing-flight-mh370-ended-in-indian-ocean-and-no-one-on-board-survived-4676844/ So, it's likely that the plane got hijacked, turned around and flied straight out over open water with nowhere to land for several hours until it ran out of fuel and then crashed into the ocean. Why would anyone do this? - If all they wanted was to crash the plane and kill the passengers, then why continue flying for several hours? - If it was an act of terrorism then why have they not released any political statements? - If it was a criminal attempt then why has there not been any demand for ransom? The only logical explanation I can think of is that they, for some still unknown reason, wanted the plane to disappear mysteriously without any trace but the satellite pings gave away their last location and ruined the scheme. Hopefully the black box will be found and contain enough data to provide a thorough explanation.
  5. The images show temperature with the color scheme exaggerated and centered around an average temperature. (Redshifted light have increased wavelength which is equivalent to lower energy.) The following image just shows the reduced map (i.e., both the dipole and Galactic emission subtracted). The cosmic microwave background fluctuations are extremely faint, only one part in 100,000 compared to the 2.73 degree Kelvin average temperature of the radiation field. http://lambda.gsfc.nasa.gov/product/cobe/dmr_image.cfm
  6. So "tO" is the current age of the Universe and "t" is the age when the light was emitted from the object we are observing?
  7. The age at the current moment of observation is thought to be the same as the current age of the Universe.
  8. Ok, so they are both spherical, lots of things are that. The human ovum measures approximately 0.12 mm in diameter. http://en.wikipedia.org/wiki/Egg_cell The Sun ... has a diameter of about 1,392,684 km http://en.wikipedia.org/wiki/Sun So the egg is magnified 1 392 684 000 / 0.00012 = 11 605 700 000 000 times. the smallest atom is helium with a radius of 32 pm http://en.wikipedia.org/wiki/Atom#Shape_and_size A helium atom would then have a diameter of 11 605 700 000 000 x 64/1 000 000 000 000 = 742.7648 meters. Your picture of the Sun has 574x580 pixels so 10 000 x 10 000 of such magnified atoms would take up 3x3 pixels in that image. That is roughly one million atoms in only one single pixel. So besides from being very dark, (without a light source shining on it), I don't think we would be able to view individual atoms. On top of that, this is speaking about the electron cloud which is mostly empty anyhow, with a tiny nucleus in the center: An illustration of the helium atom, depicting the nucleus (pink) and the electron cloud distribution (black). The nucleus (upper right) in helium-4 is in reality spherically symmetric and closely resembles the electron cloud, although for more complicated nuclei this is not always the case. The black bar is one angstrom (10−10 m or 100 pm). http://en.wikipedia.org/wiki/Atom
  9. AFAIK LaTeX is a feature that is built into the forum, there is no need to download anything, all you have to do is learn how to use it. There is a turtorial in the maths section, here is a link: http://www.scienceforums.net/topic/3751-quick-latex-tutorial/ For instance the equation in post #4 could look like this: [math](\frac{log(t_O-t)}{log(t_O)})^2+(\frac{f}{f_O})^2=1[/math] But I don't understand what "the age of the observer" has to do with observed expansion?
  10. In the news on the radio they said that satellites have found two large pieces of wreckage that could be from the airplane, somewhere in the Indian Ocean. Ships are said to currently be on their way there to investigate but they had a long way to travel so it will take several hours before they can confirm it. [EDIT] Found this article in Daily News: Supposed objects from missing Malaysia Airlines Flight MH370 being investigated John Young, manager of Australian Maritime Safety Authoritys emergency response division, said two objects one being almost 80 feet long have been spotted in the Indian Ocean using satellite imagery. Military search planes were dispatched to investigate. http://www.nydailynews.com/news/world/2-objects-missing-malaysia-airlines-jet-australian-pm-article-1.1727548
  11. EdEarl if you put around your links to images they will show up directly and we don't have to click on the link to see it. The software will convert it to look like this before posting: But when you have posted it, we can all see it like this:
  12. But for to completely turn off the ACARS you would need expert knowledge and access to the electronics bay below cockpit. The hijackers didn't likely know about this, so now we have a trace to where they might be, still a big search area though. But to turn off the other part of the ACARS, it would be necessary to go to an electronics bay beneath the cockpit. Thats something a pilot wouldnt normally know how to do, Goglia said, and it wasnt done in the case of the Malaysia plane. Thus, the ACARS transmitter continued to send out blips that were recorded by the Inmarsat satellite once an hour for four to five hours after the transponder was turned off. The blips dont contain any messages or data, but the satellite can tell in a very broad way what region the blips are coming from and adjusts the angle of its antenna to be ready to receive message in case the ACARS sends them. Investigators are now trying to use data from the satellite to identify the region where the plane was when its last blip was sent. http://www.nst.com.my/latest/font-color-red-missing-mh370-font-3-pieces-of-evidence-point-to-jet-s-takeover-1.515830 Possible last known locations of MH370 in red, based on final satellite ping at 08:11 Malaysia time. http://en.wikipedia.org/wiki/Malaysia_Airlines_Flight_370 The only possible location to land slightly secret in the south path seems to be at the small Christmas Island Airport, but if they had I think they should have been revealed by now, so if the plane is still intact then they likely took the north path.
  13. The report of military radar detection has been withdrawn as "inaccurate and incorrect" reported by media: On 11 March, it was reported that military radar indicated the aircraft turned west and continued flying for 70 minutes before disappearing near Pulau Perak; and that it was tracked flying at a lower altitude across Malaysia to the Malacca Strait. This last location is approximately 500 km (311 mi) from its last position in contact with air traffic control. The next day Rodzali Daud denied making the statements as reported in the media, requesting that the misreporting be "amended and corrected to prevent further misinterpretations of what is clearly an inaccurate and incorrect report". http://en.wikipedia.org/wiki/Malaysia_Airlines_Flight_370
  14. Wikipedia has some basic information for those interested: Malaysia Airlines Flight 370 (MH370/MAS370), also marketed as China Southern Airlines flight 748 (CZ748) through a codeshare, was a scheduled passenger flight from Kuala Lumpur, Malaysia, to Beijing, China. On 8 March 2014, the Boeing 777-200ER aircraft operated by Malaysia Airlines disappeared in flight with 227 passengers on board from 15 countries, most of whom were Chinese, and 12 crew members. The aircraft last made contact with air traffic control less than an hour after take-off. http://en.wikipedia.org/wiki/Malaysia_Airlines_Flight_370 I think it's strange that they can't make a clear statement whether or not they have received signals from the onboard maintenance systems after the plane went missing. The airline reported in its eleventh press release that all of its aircraft are fitted with an Aircraft Communications Addressing and Reporting System (ACARS), a system that automatically transmits data about the status of the aircraft, but added "Nevertheless, there were no distress calls and no information was relayed." When Malaysian officials were asked by a Flightglobal reporter if they had any ACARS information or not, the officials declined to comment. ...Follow-up reporting by Reuters suggested that a cessation of engine reports did not necessarily mean there was no evidence of continued flight as the evidence may have taken the form of "pings" sent by the aircraft's maintenance troubleshooting systems that indicated to satellites it was merely ready to communicate as opposed to sending reports. The Wall Street Journal then corrected its story to drop references to Rolls-Royce and say that the belief of continued flight was "based on analysis of signals sent by the Boeing 777's satellite-communication link... the link operated in a kind of standby mode and sought to establish contact with a satellite or satellites. These transmissions did not include data..." Even if it was only "pings" to establish contact with satellites, it means that the airplane was at least partially functioning and above water surface for a duration after the disappearance.
  15. Multiverses are only speculation and if we continue to stack "IFs", then there could be some master rules of nature that dictates how all multiverses behave and develop and it's possible that all outcomes are limited by these rules to a finite amount of alternatives. When there are more examples than there are possible outcomes, then some of them most be repeated, thus with infinite instances all alternatives are very likely to be repeated many times and to be closely resembling many many more times. But we don't know if the Universe is infinite, we don't know if there are other multiverses and we don't know if such hypothetical multiverses would be bounded by the same laws of nature, so there is definitely no "need" for it to be like this. IMHO, I think that if we are unable by any means to confirm that there are multiple Spymans somewhere, typing this or a very similar reply, then the existence of those Spymans are irrelevant to us and could as well be considered nonexistent.
  16. No, if you have any problems with what I said then I suggest you spell it out instead of making insulting insinuations.
  17. The problem is that due to expansion and the age of the universe, we can only see a limited view of the Universe, even if the Universe would be finite like a hypersphere it must be smaller than the observable universe for us get confirmation of this from observation. Currently we don't know how large the Universe is, it could be infinite or so large that our view is only a tiny speck of it. There have been tries to search for duplicate images, which claims a lower bound of a diameter close to the size of the observable universe, but it is disputed: If the universe is finite but unbounded, it is also possible that the universe is smaller than the observable universe. In this case, what we take to be very distant galaxies may actually be duplicate images of nearby galaxies, formed by light that has circumnavigated the universe. It is difficult to test this hypothesis experimentally because different images of a galaxy would show different eras in its history, and consequently might appear quite different. Bielewicz et al. claims to establish a lower bound of 27.9 gigaparsecs (91 billion light-years) on the diameter of the last scattering surface (since this is only a lower bound, the paper leaves open the possibility that the whole universe is much larger, even infinite). This value is based on matching-circle analysis of the WMAP 7 year data. This approach has been disputed. http://en.wikipedia.org/wiki/Observable_universe#The_universe_versus_the_observable_universe
  18. First off, this looks like homework and if so should have been placed in the Homework Help section. Secondly, are you saying that you have two coordinates (4,5) and (1,1) where you want to calculate the distance between them? If you draw this out in a coordinate system you will find that you get a right triangle and can use the Pythagorean theorem. It looks like you have the equation ok but make a mistake somewhere in your calculation. [math]d=\sqrt{(1-4)^{2}+(1-5)^{2}}=\sqrt{(-3)^{2}+(-4)^{2}}=\sqrt{(9)+(16)}=\sqrt{25}=5[/math]
  19. If you have a container with a mechanism to push out air like a cylinder with an airtight piston, what do you think would remain in the cylinder behind the piston when it has moved forward and pushed out all air, if not empty space? Except for the mechanism such as the rod and the piston the cylinder would be an empty hollow container, there would be nothing between the rod and the walls of the cylinder, only empty space. And actually it's much worse than that, even things like air, water, earth and the atoms matter are made of are mostly empty space inside. If you could magnify a volume of air so that you could see individual atoms in the air moving around, then what is between them? The temperature of an ideal monatomic gas is a measure of the average kinetic energy of its atoms. The size of helium atoms relative to their spacing is shown to scale under 1950 atmospheres of pressure. The atoms have a certain, average speed, slowed down here two trillion fold from room temperature. http://en.wikipedia.org/wiki/Kinetic_Theory And if you would zoom in even more such that you could see the nucleus of the atoms, then what is between the electrons around them? An illustration of the helium atom, depicting the nucleus (pink) and the electron cloud distribution (black). The nucleus (upper right) in helium-4 is in reality spherically symmetric and closely resembles the electron cloud, although for more complicated nuclei this is not always the case. The black bar is one angstrom (10−10 m or 100 pm). http://en.wikipedia.org/wiki/Atom
  20. I don't think Aliens will come here to wage war with humans because they want something on the planet Earth or elsewhere in our solar system. We think Earth is a paradise and can be afraid that someone will take away our goodies but in reality the Aliens will not likely think of Earth as a paradise and we don't have any special resources on Earth or inside our system worth fighting for. If they come here then it will either be an exploration mission which accidentally stumbled on us or they already know we are here and their visit is solely because of us humans. In the latter case it could be a peaceful mission for them to learn more about another conscious race, that we might benefit from but it could also be our demise if they want to exterminate potential competition or just get rid of the pestering bugs in their neighbourhood. In all three cases they will be much more advanced than us and if they already know about us then they won't make contact unless they also feel secure that we are harmless to them. If they want us dead then they will strike without varning or care of what happens to Earth. The only Aliens we would be able to fight off would be an unexpecting exploration mission, which as John Cuthber says most likely will be an automated drone. Unarmed and harmless, but stuffed with scientific instruments that would be a goldmine for us if we could get our hands on it. However it could be prepared for such an event and instead of revealing itself, it would remain undetected in the outskirts, spying on us and sending information back home. The masters of the probe can then safely choose if they want contact or avoid us. In short, I don't think there is going to be any invasion and in case of war we will be wiped out swift and without mercy.
  21. No, when the ball is attached to the ceiling it must have the same speed as the box. The difference in speed between the ball and the box when it hits the floor will only depend on the acceleration during the time the ball traverses the distance across the box. If the acceleration is equal in two tests then the ball will strike the floor with equal speed in both tests.
  22. Well, that's your opinion, for myself I don't even think it's "clear" if you are talking about the same "text" as me. It gets more and more evident that you seem to either be trolling or otherwise obfuscating my arguments on purpose. You have been asked to explain yourself several times, WHY are you so unwilling to accommodate this simple request?
  23. And sometimes when you go further you will hit a mine. I don't want to disrupt this thread with a discussion about internet security, but I am simply not desperate enough to read your article to take the chance as it is right now, your bait is far to weak. (Also if medium.com is a good and safe site then they should really fix such issues for their costumers.) If you want a good discussion and not only draw traffic to your article and other stuff, then I think ajb's advise is to be followed. If it's your own work then I don't see any problem with you sharing an interesting part of it here, maybe a short chapter or the introduction. IMHO your current summation is not telling us much at all.
  24. If the supermassive black hole in the center of our galaxy had such an immense and powerful electromagnetic field that it was a big proportion of holding the Sun in orbit, then shouldn't we be able to measure this magnetic field with our instruments? Also I think that the rotation curves of galaxies imply that the missing force can't be from a centralized source, if Sagittarius A* would be the culprit, then stars closer inwards would have to orbit faster than stars more outward and not almost constant as observed. The rotation curve of a disc galaxy (also called a velocity curve) is the rotational velocity of visible stars or gas in that galaxy as a function of their radial distance from that galaxy's center, typically rendered graphically as a scatter plot of the orbital speed (in km/s) of the stars or gas in the galaxy on the ordinate against the distance from the center of the galaxy on the abscissa. A general feature of the galaxy rotation curves that have been measured is that rotational velocity of stars and gas is constant as far from the galactic centre as can be measured (line B in the illustration): stars are observed to revolve around the centre of these galaxies at a constant speed over a large range of distances from the centre of any galaxy. If disc galaxies had mass distributions similar to the observed distribution of stars and gas, the rotation curves velocities should decline at large distances (dotted line A in illustration) in the same way as do other systems with most of their mass in the centre, such as the Solar System or the moons of Jupiter, following the prediction of Kepler's Laws. http://en.wikipedia.org/wiki/Galaxy_rotation_curve
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