Diode in opposite direction? The 2019 Stack Overflow Developer Survey Results Are In Announcing the arrival of Valued Associate #679: Cesar Manara Planned maintenance scheduled April 17/18, 2019 at 00:00UTC (8:00pm US/Eastern)Trying to understand flyback diodes and general diode orientationDiode parallel to resistor on H-Bridge MOSFETs gatesQuestion about fly-back diodeWhy is this diode here?Unknown diode identification (27 XD or XD 27 markings)Diode pin labels swapped in this circuit?Why do diode rings multiply?How to solve this diode circuit?NPN driving PNP, Diode from NPN Base to PNP Collector?confused about diode polarity vs circuit polarity

Can withdrawing asylum be illegal?

What to do when moving next to a bird sanctuary with a loosely-domesticated cat?

Circular reasoning in L'Hopital's rule

Single author papers against my advisor's will?

"is" operation returns false even though two objects have same id

Does Parliament hold absolute power in the UK?

Can the DM override racial traits?

Why can't wing-mounted spoilers be used to steepen approaches?

Homework question about an engine pulling a train

How to support a colleague who finds meetings extremely tiring?

Accepted by European university, rejected by all American ones I applied to? Possible reasons?

Do working physicists consider Newtonian mechanics to be "falsified"?

What can I do if neighbor is blocking my solar panels intentionally?

Mortgage adviser recommends a longer term than necessary combined with overpayments

Why are PDP-7-style microprogrammed instructions out of vogue?

different output for groups and groups USERNAME after adding a username to a group

Are spiders unable to hurt humans, especially very small spiders?

What do I do when my TA workload is more than expected?

One-dimensional Japanese puzzle

Am I ethically obligated to go into work on an off day if the reason is sudden?

How do you keep chess fun when your opponent constantly beats you?

What information about me do stores get via my credit card?

Example of compact Riemannian manifold with only one geodesic.

Does Parliament need to approve the new Brexit delay to 31 October 2019?



Diode in opposite direction?



The 2019 Stack Overflow Developer Survey Results Are In
Announcing the arrival of Valued Associate #679: Cesar Manara
Planned maintenance scheduled April 17/18, 2019 at 00:00UTC (8:00pm US/Eastern)Trying to understand flyback diodes and general diode orientationDiode parallel to resistor on H-Bridge MOSFETs gatesQuestion about fly-back diodeWhy is this diode here?Unknown diode identification (27 XD or XD 27 markings)Diode pin labels swapped in this circuit?Why do diode rings multiply?How to solve this diode circuit?NPN driving PNP, Diode from NPN Base to PNP Collector?confused about diode polarity vs circuit polarity



.everyoneloves__top-leaderboard:empty,.everyoneloves__mid-leaderboard:empty,.everyoneloves__bot-mid-leaderboard:empty margin-bottom:0;








5












$begingroup$


Its really bothering me that the diode is shown in the opposite direction here and i don't understand why its been put like that? the input voltage will come from the left side of the circuit then why is the diode's cathode connected to the output of the op amp? does the polarity even matter here?



AM radio receiver circuit diagram










share|improve this question









$endgroup$


















    5












    $begingroup$


    Its really bothering me that the diode is shown in the opposite direction here and i don't understand why its been put like that? the input voltage will come from the left side of the circuit then why is the diode's cathode connected to the output of the op amp? does the polarity even matter here?



    AM radio receiver circuit diagram










    share|improve this question









    $endgroup$














      5












      5








      5


      1



      $begingroup$


      Its really bothering me that the diode is shown in the opposite direction here and i don't understand why its been put like that? the input voltage will come from the left side of the circuit then why is the diode's cathode connected to the output of the op amp? does the polarity even matter here?



      AM radio receiver circuit diagram










      share|improve this question









      $endgroup$




      Its really bothering me that the diode is shown in the opposite direction here and i don't understand why its been put like that? the input voltage will come from the left side of the circuit then why is the diode's cathode connected to the output of the op amp? does the polarity even matter here?



      AM radio receiver circuit diagram







      diodes radio receiver






      share|improve this question













      share|improve this question











      share|improve this question




      share|improve this question










      asked Mar 24 at 15:36









      HaidyEHaidyE

      304




      304




















          3 Answers
          3






          active

          oldest

          votes


















          7












          $begingroup$

          In this particular circuit application, the demodulation of amplitude modulated RF, no, the polarity of the diode does not matter. If you reverse the diode, you simply track the positive part of the envelope rather than the negative part. Either will give you the demodulated signal.






          share|improve this answer









          $endgroup$












          • $begingroup$
            will the gain not make a difference then? we use three op amps.
            $endgroup$
            – HaidyE
            Mar 24 at 15:43










          • $begingroup$
            @HaidyE no, I don't understand your comment. Neither gain nor number of opamps used makes a difference to the fact that inverting the polarity of the diode will not have a significant effect on the audio recovered from the RF signal, except that is, the polarity of the recovered signal.
            $endgroup$
            – Neil_UK
            Mar 24 at 15:53










          • $begingroup$
            @HaidyE Your RF "Amp" (between L1C2 and Diode) is an op-amp? A large portion of available opamps haven't much gain available for radio-frequency signals. Audio signals after the detector stage are considered low-frequency, and op-amps have lots of useful gain. That first amplifier really needs a large GBW product (gain x bandwidth)...if you use an op-amp, select carefully for this spec.
            $endgroup$
            – glen_geek
            Mar 24 at 16:01






          • 2




            $begingroup$
            The RF amp may have a open collector output, so the diode would have to have its cathode facing the IC.
            $endgroup$
            – Sparky256
            Mar 24 at 16:01










          • $begingroup$
            i have used 3 op amps with a gain of 5 as i have mentioned before
            $endgroup$
            – HaidyE
            Mar 24 at 16:07


















          10












          $begingroup$

          At the point just before the first amp, the radio waves have been filtered to a particular frequency by L1, C1 & C2. That first amplifier is not an op-amp, it is an RF gain amplifier. It amplifies the incoming signal by a number of dB. The signal before and after will be an AC signal, equally biased around ground.



          The diode or detector gets rid of one half of the signal (either the positive half or the negative half, depending on which way the diode is). Description of AM Detector.



          The next stage filters off the carrier signal with a low-pass filter.



          As the next amp, an op-amp has a bipolar power supply so it can handle either the positive or negative signal. It amplifies the sound waveform for the speaker.






          share|improve this answer











          $endgroup$




















            0












            $begingroup$

            The signal into the diode is a (presumably) AM (amplitude modulated) signal. The variations in amplitude are what is of interest to the listener and are what the amplifier chain is seeking to recover.



            As shown the diode rectifies negative going halves of the signal.

            If reversed it would rectify positive going half cycles.
            Either way, Cd provides a filter that smooths out (and so removes) the RF variations and results in a voltage that varies with the amplitude of the incoming signal. As shown you get negative variations which are smoothed. Reverse the diode and you would get positive going variations. The two are the same except inverted.



            In either case the resultant "envelope" is AC coupled by Cb, and is DC ground referenced by Rb. So EITHER way "Amplifier" "sees" an AC signal centred around ground. This is amplified and, again, AC coupled vi C3 to the headphones.



            So, either way the result is much the same to the end user.






            share|improve this answer









            $endgroup$













              Your Answer






              StackExchange.ifUsing("editor", function ()
              return StackExchange.using("schematics", function ()
              StackExchange.schematics.init();
              );
              , "cicuitlab");

              StackExchange.ready(function()
              var channelOptions =
              tags: "".split(" "),
              id: "135"
              ;
              initTagRenderer("".split(" "), "".split(" "), channelOptions);

              StackExchange.using("externalEditor", function()
              // Have to fire editor after snippets, if snippets enabled
              if (StackExchange.settings.snippets.snippetsEnabled)
              StackExchange.using("snippets", function()
              createEditor();
              );

              else
              createEditor();

              );

              function createEditor()
              StackExchange.prepareEditor(
              heartbeatType: 'answer',
              autoActivateHeartbeat: false,
              convertImagesToLinks: false,
              noModals: true,
              showLowRepImageUploadWarning: true,
              reputationToPostImages: null,
              bindNavPrevention: true,
              postfix: "",
              imageUploader:
              brandingHtml: "Powered by u003ca class="icon-imgur-white" href="https://imgur.com/"u003eu003c/au003e",
              contentPolicyHtml: "User contributions licensed under u003ca href="https://creativecommons.org/licenses/by-sa/3.0/"u003ecc by-sa 3.0 with attribution requiredu003c/au003e u003ca href="https://stackoverflow.com/legal/content-policy"u003e(content policy)u003c/au003e",
              allowUrls: true
              ,
              onDemand: true,
              discardSelector: ".discard-answer"
              ,immediatelyShowMarkdownHelp:true
              );



              );













              draft saved

              draft discarded


















              StackExchange.ready(
              function ()
              StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2felectronics.stackexchange.com%2fquestions%2f428844%2fdiode-in-opposite-direction%23new-answer', 'question_page');

              );

              Post as a guest















              Required, but never shown

























              3 Answers
              3






              active

              oldest

              votes








              3 Answers
              3






              active

              oldest

              votes









              active

              oldest

              votes






              active

              oldest

              votes









              7












              $begingroup$

              In this particular circuit application, the demodulation of amplitude modulated RF, no, the polarity of the diode does not matter. If you reverse the diode, you simply track the positive part of the envelope rather than the negative part. Either will give you the demodulated signal.






              share|improve this answer









              $endgroup$












              • $begingroup$
                will the gain not make a difference then? we use three op amps.
                $endgroup$
                – HaidyE
                Mar 24 at 15:43










              • $begingroup$
                @HaidyE no, I don't understand your comment. Neither gain nor number of opamps used makes a difference to the fact that inverting the polarity of the diode will not have a significant effect on the audio recovered from the RF signal, except that is, the polarity of the recovered signal.
                $endgroup$
                – Neil_UK
                Mar 24 at 15:53










              • $begingroup$
                @HaidyE Your RF "Amp" (between L1C2 and Diode) is an op-amp? A large portion of available opamps haven't much gain available for radio-frequency signals. Audio signals after the detector stage are considered low-frequency, and op-amps have lots of useful gain. That first amplifier really needs a large GBW product (gain x bandwidth)...if you use an op-amp, select carefully for this spec.
                $endgroup$
                – glen_geek
                Mar 24 at 16:01






              • 2




                $begingroup$
                The RF amp may have a open collector output, so the diode would have to have its cathode facing the IC.
                $endgroup$
                – Sparky256
                Mar 24 at 16:01










              • $begingroup$
                i have used 3 op amps with a gain of 5 as i have mentioned before
                $endgroup$
                – HaidyE
                Mar 24 at 16:07















              7












              $begingroup$

              In this particular circuit application, the demodulation of amplitude modulated RF, no, the polarity of the diode does not matter. If you reverse the diode, you simply track the positive part of the envelope rather than the negative part. Either will give you the demodulated signal.






              share|improve this answer









              $endgroup$












              • $begingroup$
                will the gain not make a difference then? we use three op amps.
                $endgroup$
                – HaidyE
                Mar 24 at 15:43










              • $begingroup$
                @HaidyE no, I don't understand your comment. Neither gain nor number of opamps used makes a difference to the fact that inverting the polarity of the diode will not have a significant effect on the audio recovered from the RF signal, except that is, the polarity of the recovered signal.
                $endgroup$
                – Neil_UK
                Mar 24 at 15:53










              • $begingroup$
                @HaidyE Your RF "Amp" (between L1C2 and Diode) is an op-amp? A large portion of available opamps haven't much gain available for radio-frequency signals. Audio signals after the detector stage are considered low-frequency, and op-amps have lots of useful gain. That first amplifier really needs a large GBW product (gain x bandwidth)...if you use an op-amp, select carefully for this spec.
                $endgroup$
                – glen_geek
                Mar 24 at 16:01






              • 2




                $begingroup$
                The RF amp may have a open collector output, so the diode would have to have its cathode facing the IC.
                $endgroup$
                – Sparky256
                Mar 24 at 16:01










              • $begingroup$
                i have used 3 op amps with a gain of 5 as i have mentioned before
                $endgroup$
                – HaidyE
                Mar 24 at 16:07













              7












              7








              7





              $begingroup$

              In this particular circuit application, the demodulation of amplitude modulated RF, no, the polarity of the diode does not matter. If you reverse the diode, you simply track the positive part of the envelope rather than the negative part. Either will give you the demodulated signal.






              share|improve this answer









              $endgroup$



              In this particular circuit application, the demodulation of amplitude modulated RF, no, the polarity of the diode does not matter. If you reverse the diode, you simply track the positive part of the envelope rather than the negative part. Either will give you the demodulated signal.







              share|improve this answer












              share|improve this answer



              share|improve this answer










              answered Mar 24 at 15:42









              Neil_UKNeil_UK

              79k285182




              79k285182











              • $begingroup$
                will the gain not make a difference then? we use three op amps.
                $endgroup$
                – HaidyE
                Mar 24 at 15:43










              • $begingroup$
                @HaidyE no, I don't understand your comment. Neither gain nor number of opamps used makes a difference to the fact that inverting the polarity of the diode will not have a significant effect on the audio recovered from the RF signal, except that is, the polarity of the recovered signal.
                $endgroup$
                – Neil_UK
                Mar 24 at 15:53










              • $begingroup$
                @HaidyE Your RF "Amp" (between L1C2 and Diode) is an op-amp? A large portion of available opamps haven't much gain available for radio-frequency signals. Audio signals after the detector stage are considered low-frequency, and op-amps have lots of useful gain. That first amplifier really needs a large GBW product (gain x bandwidth)...if you use an op-amp, select carefully for this spec.
                $endgroup$
                – glen_geek
                Mar 24 at 16:01






              • 2




                $begingroup$
                The RF amp may have a open collector output, so the diode would have to have its cathode facing the IC.
                $endgroup$
                – Sparky256
                Mar 24 at 16:01










              • $begingroup$
                i have used 3 op amps with a gain of 5 as i have mentioned before
                $endgroup$
                – HaidyE
                Mar 24 at 16:07
















              • $begingroup$
                will the gain not make a difference then? we use three op amps.
                $endgroup$
                – HaidyE
                Mar 24 at 15:43










              • $begingroup$
                @HaidyE no, I don't understand your comment. Neither gain nor number of opamps used makes a difference to the fact that inverting the polarity of the diode will not have a significant effect on the audio recovered from the RF signal, except that is, the polarity of the recovered signal.
                $endgroup$
                – Neil_UK
                Mar 24 at 15:53










              • $begingroup$
                @HaidyE Your RF "Amp" (between L1C2 and Diode) is an op-amp? A large portion of available opamps haven't much gain available for radio-frequency signals. Audio signals after the detector stage are considered low-frequency, and op-amps have lots of useful gain. That first amplifier really needs a large GBW product (gain x bandwidth)...if you use an op-amp, select carefully for this spec.
                $endgroup$
                – glen_geek
                Mar 24 at 16:01






              • 2




                $begingroup$
                The RF amp may have a open collector output, so the diode would have to have its cathode facing the IC.
                $endgroup$
                – Sparky256
                Mar 24 at 16:01










              • $begingroup$
                i have used 3 op amps with a gain of 5 as i have mentioned before
                $endgroup$
                – HaidyE
                Mar 24 at 16:07















              $begingroup$
              will the gain not make a difference then? we use three op amps.
              $endgroup$
              – HaidyE
              Mar 24 at 15:43




              $begingroup$
              will the gain not make a difference then? we use three op amps.
              $endgroup$
              – HaidyE
              Mar 24 at 15:43












              $begingroup$
              @HaidyE no, I don't understand your comment. Neither gain nor number of opamps used makes a difference to the fact that inverting the polarity of the diode will not have a significant effect on the audio recovered from the RF signal, except that is, the polarity of the recovered signal.
              $endgroup$
              – Neil_UK
              Mar 24 at 15:53




              $begingroup$
              @HaidyE no, I don't understand your comment. Neither gain nor number of opamps used makes a difference to the fact that inverting the polarity of the diode will not have a significant effect on the audio recovered from the RF signal, except that is, the polarity of the recovered signal.
              $endgroup$
              – Neil_UK
              Mar 24 at 15:53












              $begingroup$
              @HaidyE Your RF "Amp" (between L1C2 and Diode) is an op-amp? A large portion of available opamps haven't much gain available for radio-frequency signals. Audio signals after the detector stage are considered low-frequency, and op-amps have lots of useful gain. That first amplifier really needs a large GBW product (gain x bandwidth)...if you use an op-amp, select carefully for this spec.
              $endgroup$
              – glen_geek
              Mar 24 at 16:01




              $begingroup$
              @HaidyE Your RF "Amp" (between L1C2 and Diode) is an op-amp? A large portion of available opamps haven't much gain available for radio-frequency signals. Audio signals after the detector stage are considered low-frequency, and op-amps have lots of useful gain. That first amplifier really needs a large GBW product (gain x bandwidth)...if you use an op-amp, select carefully for this spec.
              $endgroup$
              – glen_geek
              Mar 24 at 16:01




              2




              2




              $begingroup$
              The RF amp may have a open collector output, so the diode would have to have its cathode facing the IC.
              $endgroup$
              – Sparky256
              Mar 24 at 16:01




              $begingroup$
              The RF amp may have a open collector output, so the diode would have to have its cathode facing the IC.
              $endgroup$
              – Sparky256
              Mar 24 at 16:01












              $begingroup$
              i have used 3 op amps with a gain of 5 as i have mentioned before
              $endgroup$
              – HaidyE
              Mar 24 at 16:07




              $begingroup$
              i have used 3 op amps with a gain of 5 as i have mentioned before
              $endgroup$
              – HaidyE
              Mar 24 at 16:07













              10












              $begingroup$

              At the point just before the first amp, the radio waves have been filtered to a particular frequency by L1, C1 & C2. That first amplifier is not an op-amp, it is an RF gain amplifier. It amplifies the incoming signal by a number of dB. The signal before and after will be an AC signal, equally biased around ground.



              The diode or detector gets rid of one half of the signal (either the positive half or the negative half, depending on which way the diode is). Description of AM Detector.



              The next stage filters off the carrier signal with a low-pass filter.



              As the next amp, an op-amp has a bipolar power supply so it can handle either the positive or negative signal. It amplifies the sound waveform for the speaker.






              share|improve this answer











              $endgroup$

















                10












                $begingroup$

                At the point just before the first amp, the radio waves have been filtered to a particular frequency by L1, C1 & C2. That first amplifier is not an op-amp, it is an RF gain amplifier. It amplifies the incoming signal by a number of dB. The signal before and after will be an AC signal, equally biased around ground.



                The diode or detector gets rid of one half of the signal (either the positive half or the negative half, depending on which way the diode is). Description of AM Detector.



                The next stage filters off the carrier signal with a low-pass filter.



                As the next amp, an op-amp has a bipolar power supply so it can handle either the positive or negative signal. It amplifies the sound waveform for the speaker.






                share|improve this answer











                $endgroup$















                  10












                  10








                  10





                  $begingroup$

                  At the point just before the first amp, the radio waves have been filtered to a particular frequency by L1, C1 & C2. That first amplifier is not an op-amp, it is an RF gain amplifier. It amplifies the incoming signal by a number of dB. The signal before and after will be an AC signal, equally biased around ground.



                  The diode or detector gets rid of one half of the signal (either the positive half or the negative half, depending on which way the diode is). Description of AM Detector.



                  The next stage filters off the carrier signal with a low-pass filter.



                  As the next amp, an op-amp has a bipolar power supply so it can handle either the positive or negative signal. It amplifies the sound waveform for the speaker.






                  share|improve this answer











                  $endgroup$



                  At the point just before the first amp, the radio waves have been filtered to a particular frequency by L1, C1 & C2. That first amplifier is not an op-amp, it is an RF gain amplifier. It amplifies the incoming signal by a number of dB. The signal before and after will be an AC signal, equally biased around ground.



                  The diode or detector gets rid of one half of the signal (either the positive half or the negative half, depending on which way the diode is). Description of AM Detector.



                  The next stage filters off the carrier signal with a low-pass filter.



                  As the next amp, an op-amp has a bipolar power supply so it can handle either the positive or negative signal. It amplifies the sound waveform for the speaker.







                  share|improve this answer














                  share|improve this answer



                  share|improve this answer








                  edited Mar 24 at 20:41









                  SamGibson

                  11.7k41739




                  11.7k41739










                  answered Mar 24 at 17:17









                  TpKnetTpKnet

                  1015




                  1015





















                      0












                      $begingroup$

                      The signal into the diode is a (presumably) AM (amplitude modulated) signal. The variations in amplitude are what is of interest to the listener and are what the amplifier chain is seeking to recover.



                      As shown the diode rectifies negative going halves of the signal.

                      If reversed it would rectify positive going half cycles.
                      Either way, Cd provides a filter that smooths out (and so removes) the RF variations and results in a voltage that varies with the amplitude of the incoming signal. As shown you get negative variations which are smoothed. Reverse the diode and you would get positive going variations. The two are the same except inverted.



                      In either case the resultant "envelope" is AC coupled by Cb, and is DC ground referenced by Rb. So EITHER way "Amplifier" "sees" an AC signal centred around ground. This is amplified and, again, AC coupled vi C3 to the headphones.



                      So, either way the result is much the same to the end user.






                      share|improve this answer









                      $endgroup$

















                        0












                        $begingroup$

                        The signal into the diode is a (presumably) AM (amplitude modulated) signal. The variations in amplitude are what is of interest to the listener and are what the amplifier chain is seeking to recover.



                        As shown the diode rectifies negative going halves of the signal.

                        If reversed it would rectify positive going half cycles.
                        Either way, Cd provides a filter that smooths out (and so removes) the RF variations and results in a voltage that varies with the amplitude of the incoming signal. As shown you get negative variations which are smoothed. Reverse the diode and you would get positive going variations. The two are the same except inverted.



                        In either case the resultant "envelope" is AC coupled by Cb, and is DC ground referenced by Rb. So EITHER way "Amplifier" "sees" an AC signal centred around ground. This is amplified and, again, AC coupled vi C3 to the headphones.



                        So, either way the result is much the same to the end user.






                        share|improve this answer









                        $endgroup$















                          0












                          0








                          0





                          $begingroup$

                          The signal into the diode is a (presumably) AM (amplitude modulated) signal. The variations in amplitude are what is of interest to the listener and are what the amplifier chain is seeking to recover.



                          As shown the diode rectifies negative going halves of the signal.

                          If reversed it would rectify positive going half cycles.
                          Either way, Cd provides a filter that smooths out (and so removes) the RF variations and results in a voltage that varies with the amplitude of the incoming signal. As shown you get negative variations which are smoothed. Reverse the diode and you would get positive going variations. The two are the same except inverted.



                          In either case the resultant "envelope" is AC coupled by Cb, and is DC ground referenced by Rb. So EITHER way "Amplifier" "sees" an AC signal centred around ground. This is amplified and, again, AC coupled vi C3 to the headphones.



                          So, either way the result is much the same to the end user.






                          share|improve this answer









                          $endgroup$



                          The signal into the diode is a (presumably) AM (amplitude modulated) signal. The variations in amplitude are what is of interest to the listener and are what the amplifier chain is seeking to recover.



                          As shown the diode rectifies negative going halves of the signal.

                          If reversed it would rectify positive going half cycles.
                          Either way, Cd provides a filter that smooths out (and so removes) the RF variations and results in a voltage that varies with the amplitude of the incoming signal. As shown you get negative variations which are smoothed. Reverse the diode and you would get positive going variations. The two are the same except inverted.



                          In either case the resultant "envelope" is AC coupled by Cb, and is DC ground referenced by Rb. So EITHER way "Amplifier" "sees" an AC signal centred around ground. This is amplified and, again, AC coupled vi C3 to the headphones.



                          So, either way the result is much the same to the end user.







                          share|improve this answer












                          share|improve this answer



                          share|improve this answer










                          answered Mar 25 at 5:54









                          Russell McMahonRussell McMahon

                          118k9165297




                          118k9165297



























                              draft saved

                              draft discarded
















































                              Thanks for contributing an answer to Electrical Engineering Stack Exchange!


                              • Please be sure to answer the question. Provide details and share your research!

                              But avoid


                              • Asking for help, clarification, or responding to other answers.

                              • Making statements based on opinion; back them up with references or personal experience.

                              Use MathJax to format equations. MathJax reference.


                              To learn more, see our tips on writing great answers.




                              draft saved


                              draft discarded














                              StackExchange.ready(
                              function ()
                              StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2felectronics.stackexchange.com%2fquestions%2f428844%2fdiode-in-opposite-direction%23new-answer', 'question_page');

                              );

                              Post as a guest















                              Required, but never shown





















































                              Required, but never shown














                              Required, but never shown












                              Required, but never shown







                              Required, but never shown

































                              Required, but never shown














                              Required, but never shown












                              Required, but never shown







                              Required, but never shown







                              Popular posts from this blog

                              Solar Wings Breeze Design and development Specifications (Breeze) References Navigation menu1368-485X"Hang glider: Breeze (Solar Wings)"e

                              Kathakali Contents Etymology and nomenclature History Repertoire Songs and musical instruments Traditional plays Styles: Sampradayam Training centers and awards Relationship to other dance forms See also Notes References External links Navigation menueThe Illustrated Encyclopedia of Hinduism: A-MSouth Asian Folklore: An EncyclopediaRoutledge International Encyclopedia of Women: Global Women's Issues and KnowledgeKathakali Dance-drama: Where Gods and Demons Come to PlayKathakali Dance-drama: Where Gods and Demons Come to PlayKathakali Dance-drama: Where Gods and Demons Come to Play10.1353/atj.2005.0004The Illustrated Encyclopedia of Hinduism: A-MEncyclopedia of HinduismKathakali Dance-drama: Where Gods and Demons Come to PlaySonic Liturgy: Ritual and Music in Hindu Tradition"The Mirror of Gesture"Kathakali Dance-drama: Where Gods and Demons Come to Play"Kathakali"Indian Theatre: Traditions of PerformanceIndian Theatre: Traditions of PerformanceIndian Theatre: Traditions of PerformanceIndian Theatre: Traditions of PerformanceMedieval Indian Literature: An AnthologyThe Oxford Companion to Indian TheatreSouth Asian Folklore: An Encyclopedia : Afghanistan, Bangladesh, India, Nepal, Pakistan, Sri LankaThe Rise of Performance Studies: Rethinking Richard Schechner's Broad SpectrumIndian Theatre: Traditions of PerformanceModern Asian Theatre and Performance 1900-2000Critical Theory and PerformanceBetween Theater and AnthropologyKathakali603847011Indian Theatre: Traditions of PerformanceIndian Theatre: Traditions of PerformanceIndian Theatre: Traditions of PerformanceBetween Theater and AnthropologyBetween Theater and AnthropologyNambeesan Smaraka AwardsArchivedThe Cambridge Guide to TheatreRoutledge International Encyclopedia of Women: Global Women's Issues and KnowledgeThe Garland Encyclopedia of World Music: South Asia : the Indian subcontinentThe Ethos of Noh: Actors and Their Art10.2307/1145740By Means of Performance: Intercultural Studies of Theatre and Ritual10.1017/s204912550000100xReconceiving the Renaissance: A Critical ReaderPerformance TheoryListening to Theatre: The Aural Dimension of Beijing Opera10.2307/1146013Kathakali: The Art of the Non-WorldlyOn KathakaliKathakali, the dance theatreThe Kathakali Complex: Performance & StructureKathakali Dance-Drama: Where Gods and Demons Come to Play10.1093/obo/9780195399318-0071Drama and Ritual of Early Hinduism"In the Shadow of Hollywood Orientalism: Authentic East Indian Dancing"10.1080/08949460490274013Sanskrit Play Production in Ancient IndiaIndian Music: History and StructureBharata, the Nāṭyaśāstra233639306Table of Contents2238067286469807Dance In Indian Painting10.2307/32047833204783Kathakali Dance-Theatre: A Visual Narrative of Sacred Indian MimeIndian Classical Dance: The Renaissance and BeyondKathakali: an indigenous art-form of Keralaeee

                              Method to test if a number is a perfect power? Announcing the arrival of Valued Associate #679: Cesar Manara Planned maintenance scheduled April 23, 2019 at 00:00UTC (8:00pm US/Eastern)Detecting perfect squares faster than by extracting square rooteffective way to get the integer sequence A181392 from oeisA rarely mentioned fact about perfect powersHow many numbers such $n$ are there that $n<100,lfloorsqrtn rfloor mid n$Check perfect squareness by modulo division against multiple basesFor what pair of integers $(a,b)$ is $3^a + 7^b$ a perfect square.Do there exist any positive integers $n$ such that $lfloore^nrfloor$ is a perfect power? What is the probability that one exists?finding perfect power factors of an integerProve that the sequence contains a perfect square for any natural number $m $ in the domain of $f$ .Counting Perfect Powers