Jump to content

Externet

Senior Members
  • Posts

    2409
  • Joined

  • Last visited

  • Days Won

    1

Posts posted by Externet

  1. Hi.  Please no not merge to a similar thread.

    A laser beam travels trough air, enters glass, then a rhodamine+ dye, changing its green wavelength to yellow :

    undefined

     

    If the dye is a thin layer, should the green beam pass trough it as yellow ?   Or, if the dye is 'sandwiched' between glass 'slides' , would it exit the second glass as yellow ?  Will it be coherent and monochromatic ?

  2. Hi all.

    One of those things partially in retina, unable to remember ...

    Once in a documentary of perhaps 30 years ago, heard the term Canadians use or used to refer to a U.S. dwelling, -read 'American'-  style of houses, or type of construction, or some building process, or particular shape, or characteristic...  Never heard that word before nor after.  Cannot remember 🤔 

    Any clues please ?  It is not necesarily a despective or favorable word, and not a common used word either but seemed genuine.   Like replacing the word 'American' in the phrase "American house" from Canadian slang -or not slang- !  term.

  3. Hi.

    I have NO router, no WiFi at home.  My 'smart' phone does have that feature which is not enabled now, I never use or need it...    Once I enabled such and printed a document from my phone direct to my WiFi printer.   What is the correct term for that connection ?  Words like peer-to-peer ; ad-hoc ?  something else ?

    Stores sell a WiFi door-bell camera with intercom that can use a 'smart' phone to see who is at the door and even dialog with.   What should I look for in the specifications/instructions terminology wording to know if its WiFi connection is direct door-bell-to-phone or needs a router at home ?

  4. Hi.  Am the flag bearer of computer idiots.  Can hardly find how to explain what I want :

    A device with a RS485 connection is plugged to an USB port on my Linux laptop using an adapter :

    -------------------------------------------------------------------------------------------------------------------------------------

    image.thumb.png.b793ce0c06d9e42a0ba8d8008448fb68.png

    -----------------------------------------------------------------------------------------------------------------------------------------------

    Is there a standard generic set of instructions for RS485 communication that I need to have/load in the laptop to ask/command/get/interact/obtain reports ?

    I do not know how to interrogate the device to obtain its data.  Is a 'special' set of commands needed ? Typed on some sort of 'terminal mode' console at the laptop ?    The device is supposed to report Volts, Watts, Amperes, temperature, time,...

    This has nothing to do with internet, WiFi, servers...  it is wired RS485 port to USB port, period.     

    Yes, am that dumb, and need it guided/explained accordingly.

     

     

  5. A century old collection of termites in San Francisco, Ripoffornia sells for $2 Million perhaps with a garage and a yard to have one tomato plant if lucky, for whoever has dormant $200K for initial payment and a loan of $1.8M meaning $11K monthly mortgage for every month of the next 30 years of your life...

    plus $2000 monthly property taxes to feed a herd of dolittle seat warmers keyboard massagers,

    plus monthly $200 maintenance if lucky,

    plus $100 monthly insurance (to benefit the lender)

    plus $100 monthly water

    plus $200 monthly electricity

    plus whatever am forgetting just to have a roof over your family. Similar for other major cities, also Europe...  What salary allows such abuse ?  What is left for fuel, car payments, food, medical, kids... ?

    How a plain person deals with this ?  Any magicians here ?   How do you do it ?  Members of this forum with much higher knowledge, education, activity status than the general public.

    image.png.01f6a57fe29abb3730f6d3ab64b4f134.png

     

    image.thumb.png.60232ec414cc84513ee06463b2ef41be.png

     

    image.png.80c5aff70ee54cda34f768d852c0e395.png

  6. Hello all.

    While sleeping; is there any other functions in a human that also go to 'sleep' ?  Or is it only portions of the brain ?

    The production of cells, the healing processes that may be happening, the digestion, the growth, the decay, the activity of dozen of organs seem in permanent action...     I would say vision, and to a certain level, smelling, tact, hearing are not alert/active.  Tossing and turning in bed is not muscular sleep, is it ?   Do those dozen of organs have their 'rest / vacation' time ?  🤔

  7. 2 hours ago, StringJunky said:

    That particular picture could be efflorescence and not fading; leaching of consitituents to the surface.. Those are masonry pantiles on that roof.

    Thanks. That particular picture is a metal roof, imitation of tiles or disguised :

    image.png.c8db60c6604e819f59a6238685b7cc9c.png

    Am not after painting; but will buy new roof building a house and wanted to decide for a more lasting color... not for the looks but for durability.

  8. Hello all.

    Noticed red vehicles and items fading their color coatings and rust surfacing earlier than in other colored coatings.

    Which metal roofing color should last longer from showing corrosion -for equal paints composition- ?

    Faded Metal Roof Lost Its Color, is in Bad Condition and ...

    -Image borrowed from web-

×
×
  • 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.