Thanks for the link to the energy density chart.

A couple of conclusions:

1) We should be burning poly bags in our cars.
2) Li-ion batteries are going nowhere.

My first computer experience (1972) was at 110 baud, banging away
on an ASR-33 Teletype connected via leased line to a DEC PDP-8 running Dartmouth Basic.

I'd get up and run a lap around the building for fresh air while printing
a program listing. Data rate in/out was 10 CPS (Characters Per Second).

I recall proudly showing my dad the program listing at home, unrolled on the living room floor at about 10 or 12 feet long...

Reliance on tools of this nature will reduce the quality and clarity of the source code. The programmer will have little motivation to use descriptive variable names or constant definitions.

This is evident in the video. You can see the use of integer literals everywhere instead of symbolic constants.

Unlike the commenters to your post, I'm impressed. What do you do
to back up your data? I think both your music and Linux .iso collection is worth preserving and passing on to your heirs, if you have any.

How about writing up a tutorial on how to correctly declare
c/c++ numeric variables. When I went to school many moons
ago, int and long were it.

http://www.cplusplus.com/doc/tutorial/variables/

has a tutorial on declaring variables, and a table listing sizes.
They state the sizes of char, short int, int, long, etc.

If this is not the correct way to do it, please help enlighten us!
Thank you.

This behavior is a consequence of Chinese culture, namely the overriding importance of "saving face".

Two simple questions. What's the fastest SDHC card on the market, and how fast is it? Don't know? OK, what is the brand and model number of the fastest SDHC you own?

32GB in less than 2 minutes?
pure BS
32GB = 32*1024*1024*1024
                  = 34,359,738,368 bytes
lets round down to 30,000,000,000 for simplicity
30,000,000,000bytes / 120seconds = 250,000,000 bytes/second
So, tell us which USB or Firewire card reader can read at better than 250MB per second, and which brands and models of SD cards support reading at that speed?

Try sitting around in an ER for a week; you'll change your mind about helmets before the week is out!

Hey, I still have my HP-45 bought in '74 I think,
and it still works!

If the turned-off LED power supplies were still consuming power, that power would have to be dissipated in a load of some sort, and a heat sink would be required to get rid of the heat generated.

Unless the LED lamp contains a ballast resistor as a load dumping device, this is very unlikely, unless the LED lamp is of especially crude design.

The 120 VAC LED lamps I have certainly don't have this problem.

I was way, way behind in 10th grade math, so my Dad hired a local college professor to tutor me. This was in 1972. The professor set me up with an account on the college's time-sharing hookup to Long Island University's DEC PDP-8. I spent many a night over at the college sitting at the ASR-33 teletype working on programs I dreamed up in Dartmouth BASIC. When I wanted to make a long program listing, I'd get it started, then run around the outside of the building a couple of times while it chugged away at 10 CPS. When I got home I'd unroll the listing onto the living room floor and lie down and debug/improve the program by making notes in the margins.
Thanks Dad, and thanks Dr. Melter.

I am in the USA. Here the freight trains are Diesel-electric, and often over a mile (1.6KM) long.

I've read that railway transport is the cheapest and most efficient,
mostly due to low rolling resistance and aerodynamic drag (low frontal
area of first engine unit compared to the overall mass of the train).

It's worth taking the time to watch the video.
The individual cowering in the corner of the room
with fingers in ears gives you a good idea of how
loud it is.