The touch lamp; a neat idea, and older than you'd think!
29:08
How the gas mantle made lamps 10X brighter
20:39
The correcting feature of typewriters is not what I thought
37:16
Why it's not possible to synchronize turn signals (but also absolutely is)
23:21
The Numitron: An obvious idea that wasn't very bright
21:15
Brown; color is weird
17:41
The decorative lamp that's built wrong on purpose
30:03
A troubling trend in lighting?
50:09