On 28/12/12 14:01, wrote:
On Friday, December 28, 2012 8:35:16 AM UTC, polygonum wrote:

A bit early, but I'd guess that things didn't change that fast between
1902 and 1921 (and I do not know when he started his 'shop').
Thank you.

In electrical/electronic terms they changed hugely. Radio advanced from coherer sets only capable of thuds to multistage reaction sets receiving speech & music. Radio even developed enough for the first mobile phone in 1922.
http://www.ufunk.net/en/insolite/le-...-date-de-1922/

The spread of electrification, and the spread of electric motors and heating in a fairly wide range of appliances transformed numerous tasks. Industral electrification cut many costs, improving people's standard of living. Trams went from horse pulled, spreading horse**** everywhere they went, to clean reliable electric. The use of electric elevators spread through medium & high rise buildings. Electrical safety standards were transformed over the period from suicidal to risky.

Medical uses of electricity at this time included shock coils, electromagnets for removing metal debris from eyes, the violet ray, and diathermy. There was also the spread of X ray machines through hospitals in this period.

So it was a busy period of fast technological change and rollout.


You forgot to say that windmills were abandoned everywhere...and
replaced with electric mills :-)

NT



--
Ineptocracy

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lead are elected by the least capable of producing, and where the
members of society least likely to sustain themselves or succeed, are
rewarded with goods and services paid for by the confiscated wealth of a
diminishing number of producers.