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Everything posted by insane_alien

  1. find an empty can, put some grinding media in it an rotate by hand would be the cheapest way.
  2. but linux computers tend to be jucier targets for hacking. servers and such while windows tends to be low value targets such as home computers.
  3. It seems like TYT is objecting more to the hypocrisy of being pro-vietnam when it was going on but not actually doing anything about it than the fact he dodged the draft. There are plenty of legitimate reasons why people would dodge the draft that don't make them bad people. But his reasons are a bit weak. He's saying 'Oh I wanted to go, but my hands were tied' Basically, he's lying about what he really thought about the war. I think if he'd just said 'yeah, i didn't want to go to war' then TYT wouldn't have attacked him on it because it's the truth. Of course, that would be political suic
  4. it doesn't look like the background is moving. it looks to me like we have a small, rounded high altitude cloud (hence the brightness) with some low altitude fast moving clouds much much closer to the camera. It also looks like there is hefty zoom going on. UFO? no. cloud? yes.
  5. the sensation is the patterns of signals from the tastebuds. If it is the first time then there won't be any memory associated but a memory will be created. just a simple association 'when i eat this fruit, this is the sensation i get' which would be reinforced by further tasting.
  6. basically, when you smell an orange, somechemical receptors in your nose activate and start sending electrical signals to your brain. your brain interprets the signature of the impulses as that of the smell of oranges (or rather it interprets it as a sensation which has memory links to the smell of an orange). if you sent the same signals directly into the olfactory nerves then you would smell orange without there being any orange present. all sensory organs work the same way. some receptors either activate or deactivate and the pattern of activation is interpreted by the brain to prod
  7. The only way we can make a wise decision about anything is if it is an INFORMED decision. That means we need to understand what actually happens in the universe and the relationships involved. With the advent of petascale super computing I think we'll see a lot of advancement on the relationship side of things. Forecast simulations of the effects of introducing a new law etc. that will lead to more informed decisions.
  8. nope. a molecule has no memory, so as long as the atoms are in the right configuration it is impossible to tell whether the molecule came from a biological or synthetic source. of course, if we are considering bought chemical then it IS often possible to tell. The biological origin stuff tends to have a lot more contamination than the synthetic stuff. Please note, contaminant in this case means 'anything other than the desired substance', not necessarily harmful'
  9. its probably just that below the waterline (baseline? ) the sodium hydroxide had ate through enough of the aluminium that it could no longer support its own weight.
  10. woo the wild number of hypotheses about the universe has been drastically reduced. still loads of them left. now we can concentrate on finding out the properties of this particle and the consequences it has for theory.
  11. This is a common misconception. It will only get hotter if it is constantly moved to a greater state of compression. if you stop the compression, say by the core material being as squashed as possible by the mass above it, then there is no more energy going into the system to make it hotter. if the system is not thermally isolated (the core of the earth isn't) then the thermal energy will dissipate away.
  12. It depends on exactly how close you want the earth to get to equilibrium. and if effects such as proton decay exist. well, the longest known halflife is Tellurium-128 with 2.2septillion years (2.2*1024 years) so to get rid of all of it your looking at something like 70 septillion years before all heat sources disappear although proton decay is estimated to be ~1030 years and could keep the earth at around 1K you could be looking at something truely massive like ~1035 because with proton decay, you'll get beta decays of the excess neutrons. the earth would just evaporate away in a cloud
  13. Only for the surface, but I think it'd take a whole lot longer than that. Temperatures would plunge fastest over continents with freezing conditions in only a few days temps at the coast would be fairly stable until the oceans froze over. This could take a month or so but once a thin layer of ice has formed, the process will accelerate again as the oceans heat reservoir is cut off. As the earth cools down and all water and CO2 precipitates out of the atmosphere, the rate of cooling will again slow down. Not only because the radiative losses depend on T4 but because the major source of
  14. no it wouldn't. Anyway, the H4O2+ ion is less stable than the H3O+ ion. you could concievably get it to form but it would require an abundance of H3O+ ions likely, nothing but. but to keep the thing electrically neutral you'll need negative ions. basically, it'll decompose to a whole lot of water first.
  15. That's called 'gimbaling' There is also the option of having fins in your rocket exhaust, sure you lose some of the the power but it allows controllable flight in vaccum and atmosphere (atmosphere only while rocket is firing) without RCS rockets.
  16. do you have any evidence to back up that assertion? without evidence it gets cut off by occams razor.
  17. the link you gave was for 17 previously undiscovered pyramids. as this was the first survey, lets be generous and say there are 30 more for 47 undiscovered pyramids. the number of pyramids examined (not counting the above mentioned) = 138 ( http://en.wikipedia.org/wiki/Egyptian_pyramids ) so of a total (est.) 185 pyramids, we have sampled 138. 74.6% sampling is plenty good enough and definitely not a small percentage. Even if there were 1000 pyramids undiscovered, 138 is a decent sample size. we have a broad range in our sample too. covering upper and lower kingdoms and millenia of
  18. actually we do. All the early pyramids observed are of poorer build quality and much simpler in design than later pyramids. they also tend to be smaller. we also see mistakes in the construction of early pyramids (such as making them large with too steep an angle) that are not repeated in later constructions. The point is we see a progression in pyramid architecture from simple piles of rock up to the great pyramid's that are icons for ancient egypt even to this day. EXACTLY the kind of thing you would expect to see humans do on working up to great achievements like the great pyramid. case
  19. inkscape is a FOSS vector image maker. you can get .dxf plugins for that. I use it at work for a similar purpose.
  20. buildings get torn down in mumbai as well you know.
  21. it doesn't have more mass (it has less as the source star sheds a lot of matter in creating a blackhole.) The big difference is a blackhole is incredibly small compared to the source star. for instance, to turn the sun into a blackhole you'd need to squash it into a sphere only 6km in diameter. http://en.wikipedia.org/wiki/Schwarzschild_radius
  22. just to point out, i said compounds such as hydrogen and carbon, i should have said elements such as hydrogen and carbon. gotta admit when you're wrong. otherwise you'll never learn anything new that is also true.
  23. The gamma ray burst will hit ALL of them if it is observable from earth. the only problem is it will also hit all the space in between them as well.
  24. ahem. magnetite is Fe3O4 hematite Fe2O3 Other ores also contain oxygen but also other compounds like carbon and hydrogen. carry on.
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