Jump to content

insane_alien

Senior Members
  • Posts

    10040
  • Joined

  • Last visited

Everything posted by insane_alien

  1. i think the point of the reactor is that the plutonium is used pretty much as soon as it is generated, resulting in a ver low plutonium content for the reactor at any one time.
  2. by pass through it was meant that the material was transparent to it, ie, the laser goes through leaving the material unchanged.
  3. hydrinos don't exist. this is fact. seeing as you start off with a faulty assumption(that hydrinos exist), the rest is meaningless.
  4. yes, AC but also in DC systems when a switch is thrown or the voltage changes. well, there are two things that will determine how the EM radiation will affect you. 1/ Wavelength, basically the type of radiation(microwave, blue, red, Gamma, etc.) this determines how the radiation will affect you because how well your body absorbs the radiation depends on wavelengths. The amount of energy carried in a photon of the radiation isalso wavelength dependant. if the wavelength is small enough it can cause molecules to break appart if it hits them. This gets very serious if it impacts DNA. its this action that causes cancers, when the DNA becomes fragmented and broken due to absorption of a photon. most long wavelength bands of EM radiation however just pass us by with no effect whatsoever. A specific microwave band that is absorbed by water can be dangerous due to the fact that it can heat us from the inside(like the food in your microwave). 2/ Intensity; intensity is the number of photons hitting you at one time. if the intensity is very low its not really going to do much to you no matter what it is, if the intensity is high then it will either cause heating(for the longer wavelengths) or it will cause intracellular damage(for the shorter more penetrating wavelengths). If the radiation passes by you with little to no effect then intensity doesn't matter, its not going to do anyhting to you either way. if your body can absorb the radiation then intensity determines how quickly it will cause damage. Lets take light as an example. i have a 10W bulb, a 100W bulb, a welding torch , a spot light and a nuclear blast. the 10W bulb is low intensity, its not going to do anything to you and you can look at it without hurting your eyes. a 100W bulb is more intense and it'll hurt your eyes to stare at it for a bit. a welding torch is even more intense, looking at this can make you go blind and standing near it can cause burns if unprotected. The spotlight will instantly blind you if you look directly in it and you will experience burns if you stand close to it for a while. the nuclear blast is the most intense(in my samples) and can vapourise you just with EM radiation from many kilometers away.
  5. electronic devices do emit radiowaves. this is simply because the changing currents in the wires inside act like antennas. usually these radiowaves don't make it out of the casing but some do. this can cause interference with recievers(like on your telly). powerlines also emit radio waves in massive quantities(at 50 or 60Hz depending on your location) as they also act like massive antennas. EMF at levels produced by consumer electronics are generally not harmful(unless you jerry rig your microwave open while it reamins on, then you'll be cooked from the inside) and won't cause cancer. sunbeds are the one exception to this as they emit UV which is capable of causing skin cancer with prolonged exposure(just like if you stood around on sunny days all day every day with no protection). everything above UV has the potential to cause cancer with prolonged exposure. this happens only rarely and is why X-Ray machine operators have to wear the lead aprons and get behind the big screens because they get exposed fairly often. pretty much everything below that is safe as long as the radiation isn't intense enough and in a wavelength where your body can absorb it. if it is it will cause heat damamge(burns, hyperthermia). however, 99% of the spectrum just passes straight through you
  6. well this is a debate forum, we like debate. why would you want to remove debate?
  7. we of course they've done experiments its just there are a variety of different crystal structures in the metals that can vary in the amount present which can alter the density so two different samples of the same element can have different densities. with osmium and iridium there is a fair bit of overlap. osmium can have a slightly greater density than iridium but it is in the range of milligrams per centemeter cubed.
  8. insane_alien

    Dexedrine

    this thread is 2and a half years old, let it die.
  9. someone attempted to rob my garage, the lock stopped them. your point?
  10. lead isn't the densest, iridium and osmium are(its debatable which is denser as they are so close. and it is ever so slightly variable). lasers and infrared can't go through a block of steel or aluminum either so i don't know why you are suggesting its a property of density. i also don't recall any ships being made of lead, even russian ones.
  11. well there are hypothetical particles called tachyons which wouldn't be able to move slower than light. but the main point is that in either case it would take infinite energy to accelerate to the speed of light as the closer you get the more energy you need to put in to go 1m/s faster.
  12. you would lose energy in transmission because of 1/absorption by dust and gas in space and the atmospheres 2/you won't have a perfectly focused beam so a lot of the energy will simply miss the reciever 3/even if you did have a perfectly focused beam, half the time it would be missing the reciever due to imperfect aim and the time it takes for corrections to have any effect. 4/ no such thing as a perfect transmitter or a perfect reciever. 5/ ground based transmission losses as seen in current electrical distribution networks.
  13. nope, the work done by expansion is already considered. its in the enthalpy of the phase change. thermodynamics considers volume changes as well as temperature changes.
  14. big brother may be wathing but i'm not convinced he understands what he's seeing.
  15. well it definitely comes under chemical engineering if it is applied to microreactors. i can't really comment on using it to power nano machines as i know nothing of those. and yeah i know micro reactors do funny things for mixing i did a bit on them in my reactor design class last year. vibration is another method the use, they just vibrate the whole reactor assembly.
  16. this was my first thought as well but, if you read it you'll see it only applies at the very small scale. it could be used in microreactors but not big industrial monolithic reactors.
  17. agreed, unless your packing the would with raw chicken then you can indulge in all the chicken cravings you want. if the wound stays clean, do whatever you want.
  18. yeah, he'll post some of his crap, disappear for a few weeks and then return spouting the same old rubbish. i'm surprised he hasn't been given his marching orders already.
  19. your wasting your time, elas doesn't really consider reality to matter all hat much and just goes away on his own little path. its best just to ignore him.
  20. fixed that for you.
  21. well relatively safely, what you end up with is a kevlar bag full of hot graphite powder.
  22. yes, people would know what you meant although most people i know reffer to it by 'september 11th' rather than 9/11 or 11/9
  23. Yeah, took us ages to get him off injecting liquid solder into his veins. i've done a fair bit of soldering too. although, i don't have a proper soldering iron, just used a screwdriver and a butane torch. worked well enough.
  24. So what if she hasn't returned yet? forums can be slow methods of communication if they aren't that busy. there are some forums i post on where i'll post something and return a fortnight later to get replies. its not that uncommon. you said yourself that we know nothing about her and yet there you are making all sorts of inferences and judgements. chill out, bugger off and let the thread progress on its own. we'll often have our own discussion about the subject long after the OP has disappeared into the depths of the internet.
  25. It doesn't matter how old she is or what her level of expertise is. as long as she gets permission from the FAA then its all fine. heck the post even sounds like its a hypothetical thing anyway. how about you try and encourage people rather than just going 'you can't do that! its too inaccessible!' i say bollocks to that. I have dablled inmodel rocketry a fair bit (not 30km altitude scale right enough but i know some people who have built sounding rockets that'll reach there) and getting a payload to 30km isn't particularly difficult. so even the inaccessible part doesn't apply, you just need the money.
×
×
  • Create New...

Important Information

We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue.