360 Degrees is Not a Full Turn: A Ribbon, a Doll and the Mysterious, Wondrous Spinors and Quaternions
<p><em>Part 1: Spinors came to mathematical physics as quite a shock, and revived interest in Hamilton's four dimensional numbers, Quaternions, a century after the latter's discovery. To really understand their mystery and beauty, all you need is a doll and a ribbon. Amber the Doll and her twirling ribbon are Part 1 of this amazing story ….</em></p>
<p>Here’s our main protagonist for today, Amber the Matryoshka Doll. Isn’t she adorable? She’s going to teach us about the famous quaternions and spinors.</p>
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