Loading [MathJax]/extensions/TeX/AMSmath.js
Jump to content

Externet

Senior Members
  • Posts

    2562
  • Joined

  • Last visited

  • Days Won

    6

Everything posted by Externet

  1. Tune to television news as often as you can. Some channels use personnel chosen by their better-than-typical pronunciation/enunciation.
  2. Hi. The hydraulic fluid from a pump outlet can compress air to easily 2000psi if fed to an air containing vessel. Is there such animal in the industry ? -Yes, it is easier to just use an air compressor method-
  3. Can you speculate if hurricane Matthew turns to south east as some prediction models show, and collides with hurricane 'Nicole' in the same area ? Has such event happened before ? What would happen ?
  4. I think we are all standing on top of a huge one, and its core temperature has been hot for many million years, and still works.
  5. Adding a recently found article to post #95, as deserves being in this old thread : ----> http://www.allaboutvision.com/conditions/spotsfloats.htm Mentions photopsias as being the proper terminology.
  6. The availability of cattle aboriginal to Europe and the corresponding productivity by plowing development and their food, protein, leather yield allowed free time to think instead of hunting/gathering. Thinking instead of gathering all day long developed tools, exploration, trade, industry. The need to save food for winter months also created a need for planning. Other benign tropical areas had it too easy. On the hammock, raising an arm would get a banana all year round with barely a rag for weather protection. No need for firewood either. Having it too easy does not work.
  7. Exactly ! Well made episodes... ----> https://www.youtube.com/playlist?list=PLhzqSO983AmHwWvGwccC46gs0SNObwnZX
  8. I do not care about the method how. Just modify my DNA with some from a shark, to renew teeth when they go bad... And from a crab DNA, to regrow a limb if needed.
  9. On earth, fish may behave as there is no gravity, hovering in midwater without sinking. But they stay belly down (because of their bladder?) Would they orient themselves randomly in microgravity ? This picture is not fully showing if yes or not : ----> http://1.bp.blogspot.com/-O3apFdAqUoA/U44CEJ_4IUI/AAAAAAAAb8I/CaCEIntjiDI/s1600/4_20121107.wmv_snapshot_00.30_.2014.05.14_14.35.27..jpg
  10. Hi all. Any clues on where to find figures for magnetic field attenuation trough seawater ? As at different depths/temperatures/paths, will a compass become less sensitive to earth magnetic field ?
  11. Welcome. The amount of effort, time, sweat, tears and money to do such conversion for a novice can be beaten over 100-to-1 by getting a motor from a wreck car boneyard for a couple of dollars. Starter, window actuator, blower fans,... Feeding 12VDC into the stator from the external + terminal will produce no magnetism as there is built-in diodes preventing current. Study how it works first, then for a learning experience go ahead for a chance of frustration. It was made as alternator; and that is what is supposed to be for.
  12. There was a Nd magnet for years holding a deflecting aluminium foil for stray ambers on my standalone fireplace wall. It dropped as a dead fly a day the temperature was raised considerably. I cannot tell how many degrees, but that data has to be available on the net. So yes, that is one sure way to turn a magnet into a piece of metal.
  13. Thank you !. Now I can find them ! Good clues.
  14. Try to discern if the numbness is due to hands position or neck position. Cervical nerves will produce it, specially if there is some history of trauma. Then, follow other pertinent positioning tactics to avoid it. Lower the seat, raise handlebars, both...?
  15. I forget how are they named... optical something... Is there vendors that you know of, for 'benchtop' size? They work by shining a laser onto some fluid that solidifies when hit by its ultraviolet light. Sort of a loca glue curing layer by layer to form a solid.
  16. The lack of range/performance of an electric vehicle to keep up with cyclists could be fixed with several staged electric vehicles. But exhaust fumes next to competing athletes is criminal.
  17. Yep. Did not detect crap, neither gold, silver... under any circumstances, patiently evaluated for a couple of days I had it at home. As good detector as a turd.
  18. Hi. Is there a reason that nobody (that I know of) has ever attempted to complain or eliminate support and media non-electric automobiles and motorcycles riding next and together with bicycles on competitions; injecting their exhaust fumes to athletes that are exerting intense physical extenuation ?
  19. Has anyone here witnessed events on divining; failed or successful ? Bring your story. Some municipal water companies have their 'expert' along with the electronic equipment operator to search for leaks. What is behind the smoke cloud and mirrors worth evaluating? Once I had in my hands a device (very well made) to 'detect' gold, silver, and... paper money. The 'instrument' was not cheap, with a user manual with a weird explanation of principle of operation using some 'solar rays bounce detection' A scam/ripoff/whatever ? that had its believers. Found some pictures : ----> http://simmonsscientificproducts.com/images/pmr2_power_tube.gif ----> http://simmonsscientificproducts.com/images/uar_one_hand_bearing_handle.jpg ----> http://simmonsscientificproducts.com/images/Professional_complete_course.jpg
  20. Before the next jumps, he has the choice of growing wings or select the coffin of his preference.
  21. As titled; anything relevant lately that you believe ? scirus.com died years ago; ojose.com is complex to navigate; any other you may suggest ?
  22. In a speculative posibility of some certain nuclear spent fuel could provide heat for a dwelling; would it be possible to 'shut it off' in summer and 'hold it' for winter use only ?
  23. Subject visited before, at least once... ----> http://www.scienceforums.net/topic/77559-heat-left-in-nuclear-spent-fuel/?hl=spent
  24. Multiplying fear times ignorance yields the product called god, expressed in imaginary numbers.
  25. Still suspect the magnitude of interest here is impetus. Impetus is defined as being very similar to the suggested momentum. What I do not see clear is the difference between impetus and momentum, being the latter, mass times velocity. Implies a gravity constant. Can someone explain ? ----> https://en.wikipedia.org/wiki/Theory_of_impetus Where one says is weight times velocity. Hitting a plain golf ball with the club; and hitting another containing a lead core should behave different in reach, speed and size of the splash into the pond. I have fallen into this same dilemma repeatedly; as example the size and stiffness on diver fins matching the wearer strenght for optimal propulsion. Also, size of oars. Similar to electronics impedance matching, which I do understand. But never found the same with dynamics. How is it called ?
×
×
  • 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.