Красота золотого сечения

Picked video by video from Wild Mathing (mixed channel): title plainly names a teaching subject. Channel transcript sample: All three sampled videos lack transcripts, so no content could be verified despite the channel's title-sample verdict of 'whole'.

A 15-minute video from Wild Mathing: “Красота золотого сечения”.

Video by Wild Mathing, played through YouTube's embedded player.