(NEW) Concept 03 - Evil twin | Table tennis education

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  • Опубліковано 11 гру 2024

КОМЕНТАРІ • 9

  • @mnguyenxiv
    @mnguyenxiv 2 роки тому +2

    It took me a while to figure out how to apply this concept practically in a stroke. I couldn't grasp how to effectly apply this concept to a stroke for the longest time. Now, my forehand shots are 3x more powerful and spinny due to this concept. I can just throw my whole arm at the ball, and the amount of safety, spin, and power generated on the ball is enormous!
    Does this stroke concept apply to the backhand though? Backhand doesn't have the luxury of elbow/forearm flexion to generate spin.

    • @DESANGGG
      @DESANGGG  2 роки тому

      Exactly, we are glad it helped you. For backhand, you can use the same concept but execution is different and technique need edjustment. You will find it! You are on the right track :)

    • @mnguyenxiv
      @mnguyenxiv 2 роки тому

      @@DESANGGG what would the Y (up) component of the backhand stroke be (wrist perhaps?), and what would the x (forward) component be? It feels like my backhand stroke is like like the first method mentioned in this video, where I apply force and spin in the same linear direction..

  • @pnachtwey
    @pnachtwey 2 роки тому +1

    I do not like the video. It shows forwards and upwards forces but if that isn't what is happening at all. Since the paddle is closed, there is a normal force the paddle places on the ball and that is downwards. There is a tangential force that that is up but at an angle. The tangential force must be large enough so the sum of the two forces, actually impulses, it high enough to get the ball over the net.
    I have NO idea what you are talking about when you mention CHINA vs EUROPE. Physics is physics. The advantage that tacky rubbers have is that the paddle can brush the ball more "thinly". This is because if the paddle is closed a lot, the normal force may not cause enough frictional force to grip the ball so that the tangential force can be applied. Tacky rubbers will grip the ball better and allow for more eccentric brush strokes. The down side of tacky rubbers is that they get dirty and the ball loses some speed breaking away from the tacky grip.

    • @DESANGGG
      @DESANGGG  2 роки тому +1

      Yes, we know what you are describing in the first part of your comment. We are focusing more at feeling for players and try to draw phenomena that causes to ball not land on the table if forces are applied in a wrong way. Actually what you are describing is effect on the ball (with closed bat) when force is applied in horizontal direction or slightly inclined, right? Point was not to exactly describe (in physics terms what is happening). Just to show difference in approaches and how the composition is advantageous. We hope it make more sense now. Thank you for your input :)

    • @void0350
      @void0350 2 роки тому

      Tacky Rubbers are used differently than ESN/Jap rubbers. His video shows perfectly how you play with tacky rubbers which is applying force forwards with Racket Angle of about 80-90° acecelarating through the ball and following it while brushing.
      You can use this approach for ESN/Jap Rubbers as well but not as good because there is no tackiness to help. Either way, without perfect body mechancis like shown in the last parts of this video, this approach is hard to learn.

    • @pnachtwey
      @pnachtwey 2 роки тому +2

      ​@@void0350 "pplying force forwards with Racket Angle of about 80-90° acecelarating through the ball and following it while brushing. "
      Hitting through the ball and brushing are two different things. Do you know what you are talking about? Brushing is not hitting through the ball but off center to make a torque for spin. Who ever gave you the heart doesn't know anything either.

    • @pnachtwey
      @pnachtwey 2 роки тому +2

      @@DESANGGG It is still wrong. Brushing the ball is using tangential friction to make the ball trajectory to go over the net. This is why the Chinese call a loop a "pull ball" la qiu.

    • @DESANGGG
      @DESANGGG  2 роки тому +2

      @@pnachtwey Ok, try to IMAGINE it this reversed way. Leave exact physics description behind :) obviously you know some things. Suppose that there is a hole in the paddle. Whichever angle you are approaching the ball, when the ball is ABLE to go trough the hole, this will be case 1 (Going trough). For that there can be 2 more situations. A) Ball is going PERPENDICULAR to the paddle/(hole) surface - isnt imagination beautifull :D ? B) Ball/paddle is approaching at some relevant angle.
      When the angle is critical, this means diameter of the ball is equal or very slightly less than vertical projection of the hole (the ball can not go trough).
      Now, lets make the paddle solid again. When you hit in situation (A), then you hit also through center of the ball. When you hit in situation (B), contact point will be on the hemisphere (facing the paddle).
      This means that even when in case 1 (going trough), when the paddle is inclined there is torgue generated due change of contact point on the hemisphere (logically, except for that one perpendicular case).
      When we mention brushing, we are more reffering to case 2. This means ball is contacted on point that lies actually on axis perperdicular to the case 1 (Top or Bottom part of the ball - depending on the angle of paddle).
      This should set a framework and explain things is less physical terms so that average player can see difference if use imagination.
      It is much better to explain thing to people in terms like ( make the distance 3x height of your paddle, than cca. 50cm.). This way they can imagine.