Why Has This Lintel Cracked?

Picked video by video from Skill Builder (mixed channel): title plainly names a teaching subject. Channel transcript sample: All three samples lack transcripts, so no content could be verified; defaulting to the prior title-sample verdict of pick.

A 6-minute video from Skill Builder: “Why Has This Lintel Cracked?”.

Video by Skill Builder, played through YouTube's embedded player.