Dr. Yisrael Ziderman

Dr. Ziderman discusses recent scientific discoveries on Techeiles.

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    Smaller Clips

    Lecture Divided in Three Parts

    Opening Remarks on Science and Halacha

    Identification of the Chilazon

    Identification of Tekhelet

    Disagreeing with different tying methods

    Ongoing Research


    Even Smaller Clips

    Issues with the Techeiles Dyeing Process Compared to Antiquity



    Any Other Murex Snails Making Blue

    How we know the blue now was violet or blue in antiquity

    Lo Titgodedu like with Tefillin

    Related Speakers:

    • Dr. Israel Irving Ziderman

      Topic: Modern Scientific Discoveries Regarding Tekhelet

      Rabbi Chaim Twerski

      Topic: Halachic Issues Regarding Bal Tosif with Techeiles

      Rabbi Yehoshua Yankelewitz

      Topic: The Yerushalmi as a Potential Source to Identify Techeiles

      Rabbi Bentzion Halberstam

      Topic: Halachic Issues Regarding Techeiles Today

      Rabbi Dr. Abraham Twerski ZT”L

      Dvar Bracha on Techeiles


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