The Theremin

AV
by Angel Valladares3 views·Updated Apr 22, 2022
Create your own

Chapters

Audio TranscriptAuto-generated

  1. the book class.
  2. Hello Professor,
  3. my name is Angel Valorous
  4. and I will be presenting
  5. what is the thurman
  6. and how does that work.
  7. So before we get into deductive what it is,
  8. I would like to explain a little history of the theremin.
  9. So the Thurman was the first ever electronic instrument invented in 1919.
  10. It was invented by a 23 year old Russian scientist
  11. named Leon Thurman.
  12. And
  13. and he was working on the gas meter and not on instrument creations when he made it.
  14. So the first song I ever played on the Therm was the swan
  15. and Too many Clara robert is the Godmother of the thurman.
  16. Actually created a note system for the thurman
  17. and much more music
  18. And many of the books that she made from 80 years ago,
  19. people still used them to this day
  20. for thurman the 19 thirties was the golden age,
  21. as composers were writing music just for thurman.
  22. And there were electronic concerts at famous
  23. places like Carnegie Hall featuring the thurman
  24. and one last factory state
  25. is that too many?
  26. It is the hardest instrument to learn
  27. and the hardest instruments to master.
  28. And so now what is the thurman though?
  29. So
  30. the way you use it is you use the vertical antenna
  31. to control the pitch while you use the horizontal intended to control the volume
  32. and use both hands. And as you might, you might have seen you not physically touched
  33. the instrument to create some,
  34. which is quite fascinating.
  35. Common use of the thurman
  36. is in constant music and in the rock genre
  37. and before
  38. and to demonstrate a quick little video
  39. of how it is used.
  40. Yeah,
  41. quite a fascinating instrument.
  42. And so now
  43. the physics behind it,
  44. How does it
  45. actually work?
  46. So behind it? It's just as crazy as the instrument.
  47. So you know where the guitar, the strings that will make the noise
  48. with electronic instruments?
  49. It is a current.
  50. The cost is a speaker in the thurman. To to virus.
  51. So with the thurman only part of the
  52. capacitor is installed which is the vertical antenna.
  53. So what about the other part of the capacity?
  54. Since since there's two parts of the capacitor,
  55. the other part is your hand
  56. as the human body can also generate electricity.
  57. This means you can control that
  58. oscillations.
  59. So what does this mean? It means that as you move the hand closer to the intended
  60. the capacitors are closer together.
  61. So more charges story
  62. and the oscillations little
  63. as you move your hand farther away, there's less charge and oscillation is higher.
  64. So but a problem like that of course is that the current
  65. which transmits it,
  66. It's around 200 killer hearts
  67. And humans can only hear from 20 to 20 kHz.
  68. So
  69. that's a problem.
  70. But
  71. but to avoid the problem, the thurman
  72. does hetero dining
  73. Which is where you mixed two currents to change their frequencies.
  74. So the way it works is that the thurman has a secret current inside of the instrument
  75. which is apart from all the like the main system
  76. and this alters the one being made by the human hand and transforms
  77. the current to human friendly sound
  78. so the current is amplified
  79. sent to the speaker,
  80. vibrates area needed here
  81. and create sound
  82. which is pleasant to the ear.
  83. And to conclude
  84. You can create your own thurman for $30
  85. using a bread bird and capacitors and analogs.
  86. Or you could buy one which go up to $1,500,
  87. which is a little too expensive.
  88. And this is the data used for presentation.
  89. I hope you all enjoyed.