James Bjorken, 90, Dies; Physicist Who Helped Prove That Quarks Exist

Murray Gell-Mann on some of Bjorken&#x27;s contributions.<p><a href="https:&#x2F;&#x2F;www.youtube.com&#x2F;watch?v=Mlk5OlaUtuQ" rel="nofollow">https:&#x2F;&#x2F;www.youtube.com&#x2F;watch?v=Mlk5OlaUtuQ</a><p><a href="https:&#x2F;&#x2F;www.youtube.com&#x2F;watch?v=bw9lytHrW-Q" rel="nofollow">https:&#x2F;&#x2F;www.youtube.com&#x2F;watch?v=bw9lytHrW-Q</a><p><a href="https:&#x2F;&#x2F;www.youtube.com&#x2F;watch?v=5PH4H29g_wQ" rel="nofollow">https:&#x2F;&#x2F;www.youtube.com&#x2F;watch?v=5PH4H29g_wQ</a>

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