Rachel and Jun
日本の家作り（据え付け作業）Japan builds house in 1 day
About this video
Rachel and Jun film Toyota Home Aichi installing a prefabricated house unit in Japan, with the assembly and roof waterproofing completed in about half a day.
Keep your curiosity going.
A few more ideas from the same corner of the archive.
Around The Corner - How Differential Steering Works (1937)
US Auto Industry
How Self-Driving Cars will Destroy Cities (and what to do about it)
Not Just Bikes
Detergent packs are kinda wishy-washy (Dishwashers Explained)
Technology Connections
Mechanical Computer (All Parts) - Basic Mechanisms In Fire Control Computers
Excelsior10000