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  • Attachment image

    Simple circuit help?

    I want to build simple wire conductivity tester.

    When the wire is conductive LED should be lit.

    If the conductivity is broken light from LED should go out.

    You maybe thinking; This is to easy. Powersource, Resistor and LED. What is the big idea, but there is an Oddity.

    The Oddity is; If the conductivity is restored LED needs to remain off, until reset button is pressed.

    Any help will be appreciated.

    Please no Arduino.

    I build something using NOT GATE and Transistor but it does what I want in reverse.

    4 AnswersEngineering1 year ago
  • How to measure TOTAL Amps?

    When charging battery(for example Li-io) I am interested how much amps/milliamps went inside battery in total,

    and how match came out while it is discharging.

    Regular Amp meter measures how much Amp/hours is going through wire, but i am interested meter that is counting Amps up, similar to cars odometer, 

    12 AnswersEngineering1 year ago
  • telephone line to ethernet adapter?

    I am looking fo device which will convert signal from telephone line to ethernet signals which could be handled by networking switch. Also looking for device which will do vice versa.

    What am i trying to accomplish:

    I have two switches one in my room 2nd in living room, as you expect they are connected with ethernet cable .

    phone line is located in my room however i need that phone line in living room for fax.

    I am planing to do this

    [phone line]<--RJ11-->[phone line to ethernet, device]<--RJ45-->[switch]<--RJ45-->[switch]<--RJ45-->[ethernet to phone line device]<--RJ11-->[FAX}

    5 AnswersComputer Networking4 years ago
  • U.S. CUSTOMS AND BORDER PROTECTION. CUSTOMS DECLARATION FROM.?

    http://www.nacacnet.org/events/2013/travel/Publish...

    I am interested what will happen if I answer "YES" to any of sub questions of question 11, 12, and 14?

    1 AnswerImmigration6 years ago
  • how to have most terrifying dream?

    It was long time since I had any bad dreams

    Most of my dreams are about romance, being in total peace, or intellectually arguing with people.

    I want to spice up my dreams wit horror or being simple chased. Does someone has any advice?

    2 AnswersDream Interpretation6 years ago
  • Databases?

    Correct me if i am wrong I know there different databases mysql, oracle and etc.

    I know there different softwares to manage them. what are some of them?

    I attained A.A.S degree in Networking Technology. I didn't took any database classes, and now I want to make it up by my self.

    Right now I am learning Libreoffice base which uses HSQLDB as it's database.

    so my question are

    1st what are the softwares which are used by net and database administrators for database management ?

    2nd and if I can manage different types of databases with Libreoffice base than why to choose this or that database?

    3rd am I doing right thing to learn Libreoffice base with it's HSQLDB at least as 1st step?

    if no then what do you recommend

    if yes then what should be my next step

    2 AnswersProgramming & Design6 years ago
  • extra virgin olive oil?

    what is the difference between extra virgin olive oil and olive oil?

    4 AnswersOther - Food & Drink6 years ago
  • Innocent until proven guilty?

    In the USA as far as I know we are innocent until proven guilty(correct me if i am wrong please).

    However in the court the first question the defendant is asked is, is he innocent or not?

    Why is this?

    what will happen if you refuse to answer this question?

    Is there other way to answer this question(except of "Innocent your Honorable" or "Guilty your Honorable" ).

    Because of if you are guilty it is not in your interest to answer this question, because the plaintiff might not sufficient evidence to prove that you are Guilty, and if they do and your answer was Innocent you have lied to court which is another crime(and likely this will reflect how much you will be fined or added to time that you have to spent in prison).

    5 AnswersLaw & Ethics7 years ago
  • Tupolev Tu-95?

    Should this plane be part of the modern AIR FORCE?

    5 AnswersMilitary7 years ago
  • REG ADD command ERROR : invalid syntax.?

    REG ADD "HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\"User Shell Folders"" /V bb /T d:\ /F

    This is small test project(before the big one). basically with this command I am trying to create new string under "HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\"User Shell Folders"" with name "bb" value data "d:\" .

    it is giving me "REG ADD command ERROR : invalid syntax."

    please tell me what am i doing wrong

    1 AnswerSoftware7 years ago
  • muscle cramp in hand.?

    Primarily thumb in both of my hands.

    This happens when am using pen, screwdriver, or similar tools.

    The way I handle it is I have to use another hand to manual force muscle to release.

    This effects my job and hobby.

    1 AnswerPain & Pain Management7 years ago
  • Does reading flash memory degrades it over time?

    Please only answer if you truly understand how does Flash memory truly work.

    Do not answer if you do not understand the NAND and NOR logic gates.

    lets say I wrote file on the flash memory (size of flesh=2GB, size of file 1.5GB) and I read(open and close) that file over 1,000,000,000 times would reading this many times degrade the flesh memory or not?

    If yes than why, and does NAND based or NOR based Flash memory has any effect?

    3 AnswersAdd-ons7 years ago
  • AUDIO ONLINE STORE?

    Does any online stores actually sell high quality audio file?

    I could download from YouTube but am looking for high quality but i want it to be downloadable.

    1 AnswerOther - Computers7 years ago
  • circuit simulator with ought ground?

    Hello I have been using EveryCircuit on Android for few yrs, but for me it has one problem it does not work if I do not connect circuit to the ground.

    lets Take LED and 3V battery if I connect Anode from LED to positive, and Cathode to negative, why do I have to use Ground? It should work with ought any problem at least in a real life it does.

    So am looking for circuit simulator were ground is optional

    2 AnswersEngineering7 years ago
  • Identity the following two Jewish leaders: David and Solomon?

    Before I type anything further, I am NOT asking someone to do homework for me!

    My world religion Prof gave us this assignment "Identity the following two Jewish leaders: David and Solomon?" in 75 words

    I do not understand what he means by "identify"?

    2 AnswersHomework Help7 years ago
  • DO I NEED A PERMIT TO OWN A BOW IN NY?

    Hello, I live in New York Brooklyn, and was wondering, do I need a permit to own a BOW?

    My question is not related to hunting, and explosive arrows .

    1 AnswerOther - Outdoor Recreation7 years ago
  • Attachment image

    what fruit is this? and what is the name of tree?

    This thing grows on trees

    back in rep. of Georgia i used to eat this loved its sweet guew taste.

    recently i noticed tree with this fruits growing in New York it had same exact taste.

    i am interested the name so i can go and look for its nutritional values

    Botany7 years ago