Jump to content

BPHgravity

Senior Members
  • Posts

    142
  • Joined

  • Last visited

Everything posted by BPHgravity

  1. I dont know anything about "fluorescent microscopi", but I can tell you everything and anything you need to know about Fluorescent Lighting. A fluorescent lamp is actually an electronic device and functions through conduction in gas. The lamps are coated on the inside with a fluorescent chemical, usually of phosphates or magnesiums. The lamps are filled with argon gas, a small drop of mercury, and sealed with electrodes at each end. These electrodes act as cathodes or emitters of electrons within the lamp. The lamps start with a high voltage ballast or starter that first heats the electrodes to begin vaporization of the mercury. Once the electrodes heat up enough (nearly instantly), the circuit is broken and a high voltage arc is created in the mercury-vapor gas that is stabilized by the argon gas. This mercury-vapor arc produces a large amount of ultraviolet-light radiation, which casues the fluorescent chemicals coated on the tube to glow very bright. This is the basic nature of a fluorescent lighting. Is this what you are looking for?
  2. Abandon Hope, All Ye Who Enters Here (black hole)! DANTE :uhh:
  3. Yes, but at least we have a forum that has a dancing banana on it! How many other galaxies can make that claim, Go Team Banana!
  4. Here are a few good ones: http://hubble.stsci.edu/ http://www.stsci.edu/resources/ http://www.discovery.com/
  5. Lets pretend a 200 pound man is carrying two 10 pound sacks. He comes to a bridge that has a 210 pound maximum limit. Assumming the bridge will fail with his 220 pound load, the man attempts to cross the bridge by tossing one sack into the air and at the point of catching the sack, he throws the second sack up. He repeats the process until he is across. Essentially, the man is never actually carrying more than one sack at a time by what I guess could be described as juggling. Would the gross weight of this load be that of his own weight plus that of the one sack he is carrying, or does the effect of tossing the sack in the air act as a downward force and as far as the bridge is concerned, real weight?
  6. If space has capacitance, does it have leading time, and when space has inductance, does it have lagging time? Sorry, bad electrical engineering joke! :lame:
  7. Anyone see the show last night? It was pretty interesting. They seemed to imply that there is no longer a "missing link". Is this the case? I was also suprised to learn that there were more than one species of huminoid like creatures throughout history. Some made it, others didn't. When it was all said and done, we (humans-Homo-Sapiens) were the only ones left. Except for you Big-Foot believeres perhaps. CHUPACABRA!
  8. I have completed 58 Units with just over 5,000 hrs of total CPU time. I only run it as a screen saver.
  9. Doesn't help you with what? I haven't heard any great theories come from you yet, so dont be so critical when someone gives you their comments or opinions. :bs:
  10. The Philidelphia Experiment?
  11. I have a question about the perception of color and have a small thought experiment on it. Lets imagine that we take a group of 4 children that have not yet learned colors. We teach 2 of them that everything they see that we normally call "black" is actually "white". And all that is "white" is "black". The other two, we teach normally. Wouldn't the first two children never really know in noone ever told them that what they see is not what everyone else supposively sees? So, what my real question is, isn't this how everyone learns how to distinguish colors. Someone tells us at any early age that a particular color is say "red", and now for the rest of our lives, anything that looks like that is "red". How do we really know that everyones spectrum is the same?
  12. My girlfreind also says that size isn't relevant. Thank GOD! :toilet: Does it take light a planck time to travel a planck length, or are these separate ideas?
  13. Dr. Einstein, in my opinion, has everyone beat hands down in the smarts department. I would then place Newton at a far second with Bhor smewhere in the bottom of the starting line-up. Its all relative though!
  14. Is it possible that the human biological clock has been set by a couple million years of human life on a 365-day solar cycle? If human life were to move to Mars which has a solar period at roughly twice that of Earth's, after another couple million years would it be possible that life would essentially be twice as long as the biological clock slows down, or would I just have to celebrate two birthdays a year?
  15. This is a more detailed link to the same press release. It gives more explanation to the experiment itself and also privdes some of the mathematical properties of the findings. http://www.engr.ucr.edu/~wistrom/
  16. THE PLACE LOOKS GREAT! GREAT JOB! :D :D
  17. :bs: You have lost the last bit of your dwindling credibility that I have for you with these last statements. It is obvious that you need need to have your medication increased significantly. Please have your mommy contact your doctor immediately. One day, a long, long time from now, when you mature a bit; you will look back on these things you say and the way you say them and realize how dumb you sound and wish you could take it all back. It will be too late then and no one will respect you at all. I appolgize for my lashing out, but ALL of your recent posts annoy me greatly! It is not my nature to say such things, but I see you're heading down a road with other travelers you dont want to be assoicated with. Trust me. :toilet:
  18. Every word you have written and every sentence you have constructed on this thread was learned from an educational system and most likely a public school. The public school system is based on providing the most amount of information for the most amount of students possible in a school career. It is up to the parents and the students themselves to apply the basic information and the general knowledge to higher level subjects and not that of the school system. The system doesnt need to be fixed, people do. :toilet:
  19. A Black Hole must emit particles or they would violate the Second Law of Thermodynamics? I dont believe the particles are actually coming from within the black hole, but from the space aboutt he event horizon. When the M31 galaxy runs into us in a few billion years, there is a possibilty that we will get caught up in its massive black hole or thrown into our own in the center of our galaxy. Chances are, humans wont be around to find out! Black Holes dont last forever and wont outlast the universe either. They "evaporate" just like anything else that goes without a source of energy for awhile. It may be the end of our galaxy, but not the end of the universe by any means.
  20. It was more than just the building of the strutures. It was also developing a calender all at the same time. Star charts, relgious practices, etc.... The point was that the use of the pyramids appeared to be for the same purpose for all the civilizations that built them, though none of them knew of each other. Unless there is a missing peice of the puzzle like early transatlantic travel as mentioned by Blike. Its just interesting that all humanity found value in time and existence at about the same time in history without learning it from each other directly.
  21. This thread reminds me of a great show I watched on Discovery Channel a few months back on Pyramids. A few thousand years ago, every known civilization on the planet started building pyramids all over the place with no knowledge of the other societies doing the same thing. It appears that all the separate cultures at nearly the same time became aware of time, space, religion, and incredible construction techniques. From what I remember, there is a pyramid on every continent but Antartica, and all of these communites had great centers of religion and very accurate time calenders. For whatever reason, at nearly all the same time, all humanity forgot how this was all done and most of these societies came to an end. Pretty neat stuff!
  22. I really enjoy observing the Pleiades Cluster, but if I has to pick just one star to view: Maybe Sirus, Rigel, or Capella....they are all cool!
  23. The below link is information and a picture of Earth from Mars. This is the first time this has ever been done. http://news.nationalgeographic.com/news/2003/05/0522_030522_earthmars.html
  24. http://www.albert-einstein.org/ This seems to be a better link.
×
×
  • 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.