Edward Lye

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since Jun 06, 2019
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Recent posts by Edward Lye

Here is a single sentence that describes me:

"Hello, I am the inventor of the left-handed chopsticks."

    Wait.     What?

A fellow polymath will understand and appreciate immediately
the power of this sentence.

It is like striking a gong and the various echoes tell you
what the surrounding is like besides announcing your arrival
and telling everyone where you are.

It explains me in a nutshell and by your response reveals
a lot about yourself as well. Are you a fellow polymath
or just a plain vanilla NPC(Non Playable Character)?

One of the things it reveals is just how open my mind is.

One of the books I picked up at a jumble sale was
a book about a cat - Varjak Paw -
a pure-bred Mesopotamian Blue. And it explained
seven skills of which the first is Open Mind.

[open mind, awareness, hunting, slow-time, moving circles,
shadow-walking, trust yourself - the full list]

[First picture]

Next item. Another way to describe myself is this
photo of my EDC bag. I don't like advertisements but
here I am advertising myself through my bag. I have
long since retired. So long that my file at the
Income Tax Board is closed - I no longer file any returns.

My bag says that I am open to an offer of employment
if the right manager recognises my past and my potential
through my bag.

When ordinary people enquire what I carry inside, I fob
them off by telling them it is a Doraemon pouch. Then
I pull out all sorts of items to distract and convince
them - a red laser pointer, a short pair of ice tongs,
plastic straws, pens, coconut oil, ear plugs, sunglasses,
Leatherman PST, etc.

But the intended audience should examine the bag itself.

Instead of the strap along the opening, I have
sewn the straps across using a number 12 needle.
Together with an old tie, I have created a second
generation sling bag. The bag was on sale. I always
walked past them . . . until . . . the light bulb
moment. It took two flashes of inspiration.
One - use the bag inside out because I dislike logos.
Two - re-sew the straps and turn this into a sling bag.
It is very rare to find a plain sling bag and I was
always watching out for any on sale.

The original bag was unwieldy to carry and occupied
one hand and it was as awkward on the shoulder.

This sling bag frees both hands. The knots I used
show my knowledge and appreciation of knots. From
multiple overhand ones to the bowline and now the
double dragon. Yes, there is a length of cordage
in the bag for practice . . . and who knows when
I need to restrain a shoplifter with a woodland
zip tie.

A normal sling bag has a problem. If you put a large
box in, the handle at both ends press on the corners
of the box and will crush a delicate box. My second
generation version does not place such stresses on
the box.

I am reminded of this guy.

[Second picture]

And that is my dream job.    

What single sentence/picture describes you?

You should have one prepared for the job interview.
It also works to evaluate the interviewer.

I had no idea but I used this for my job interview:

I built an AM radio using the ZN414 chip and sealed
everything in a block of cotton wool and candle wax.
Almost waterproof. A single AA cell powered the chip
and single transistor amplifier.
The only adjustment was the frequency. The earphones
served as the on-off switch and there was
NO volume control ! Instead

[Third picture]

1 day ago
20  minutes and ready to eat.

Zero prep. Impossible
to get wrong but I am open to surprises.

Hot. Tasty. Succulent.

4 fresh chicken wings. Air-fried for 13minutes at 195C/383F.

I cut the chicken wings at the joint with the sturdiest SK5
scissors I have. I rinse them twice in the mess tin.
I hold them to drain for 1 minute.

Then a drizzle of soy sauce and cooking oil - I am not oil
adverse. A bit of massage.

I have the oven door type air-fryer but the other type will do.

Shove the mess tin in, set the numbers, start and walk away.

Then come back when it is done. It is so good that I am too
lazy to experiment with other seasonings and marinades
or other cuts.

2 days ago

ray Bunbury wrote:zombies want to eat cauliflower because looking like brain



And that is exactly in the South Korean comedy

Watch the trailer here.

Zombie For Sale

But if you buy into the Train To Busan mythology,
since the first zombie is a deer, you can extend that to birds and rats
........ so ............ the army checkpoint at the end of the movie is
ineffective for such vectors. We are so doomed.


6 days ago
In my thread

rwwaaslpslcahsdtda

I harvest more beans from 7 entangled bean plants daily than I can eat
that the rest are pickled or await turning into leather britches.

They are planted in a repurposed rain gutter. A brick at each end holds everthing in.
Water exiting one end waters the papaya.


leather britches

I am restarting a food garden . . . slowly.

Here is my inspiration:









1 week ago
I have her.

Works every time.

The potency never degrades.

1 week ago
I got offered a job immediately after college.

I asked for two weeks to unwind so I showed up for work
in the middle of the month 16May1983.

It was my first job . . . and only job until I early-retired
exactly 30 years later. It was for three reasons:
01 I was the first person in the company to have a heart attack.
02 The job and stress and the environment was getting toxic
    and I reckon I would have died on the job within a year.
03 The country just increased the retirement age to 60
    so the trap was closing. Get out now before the company
    followed suit.

What was my job?

I repaired computer equipment - a wide range so I got
to see what worked and what lasted and the various
troubleshooting techniques.

I invented a method for adjusting a duty cycle that used
a multimeter instead of an oscilloscope. The takeaway from
this is I dared to implement this despite only majoring
in physics and mathematics while my colleagues held
electrical or electronic engineering degrees.  Basically I
applied what I knew from Class D amplifiers. I guess they
did too but why did nobody try it before I came along?
This was for those tape drives you see in the movies
with the two spinning spools.

I also invented a tool that could power on a string of
mainframe disk drives and UN-INVENTED
that when in a stroke of genius, I cupped that connector
and poured a handful
of coins to short out all the contacts in that 24V circuit.

DON'T breath  a word of this to my employer.

Getting back on topic, I had the skills to do a diverse
amount of repairs. Our mainframes were water cooled
and the electricity cable took 150 Amperes which we wired
into the junction box. Inside, the DC travelled through
metal bars instead of cables. It was like the wild west and
nobody called in a qualified electrician. We did everything.

Let me recount two stories:

A  We needed more electrical outlets for the house so we hired
   an electrician.
   Two showed up and completed the job. Guess what? I plugged
     in my OKI tester and discovered that live and neutral were
    reversed. They didn't  check their work. I got them to correct
   that before paying them.
B I was supposed to install a server and rack. The customer hired
  their own electrician. Claims he had a Masters in Electrical
  Engineering. I checked and told the customer no way I was going
  to power on the server. It turns out he followed the colour code
  and also didn't check his work - did live go to live, ground to ground
  and neutral to neutral? While he might not know the exact wiring
  inside the power distribution unit, both ends should match.

Both were too confident and too lazy to check their work.
NO due diligence. Sad but true. It also happened within my
company but that is another story.

When I buy a trailing socket or other electrical plug or adapter,
I always open them up to check how they did things. Some
brands I would trust, some never despite the sticker from our own
standards body. Bad crimps, bad joins. I recently saw a YouTube video
on how to check the electrical flex. Strip some insulation and fan
out the wires.  Apply a lighter flame to the ends. copper will glow.
Copper covered aluminum will shrivel. Good to know.

Plumbing beats me. We got a plumber to change out the water tank.
The smaller stuff like faucets I can handle although the washers are
now superseded by ceramic cartridges.

I fixed one obstinate blockage.

The tap at the rear of the house reduced to a trickle. I couldn't
figure it out. it was attached to the rear toilet which was fed from
the front  bathroom which then went to the tank under the roof.

I had a hunch. The house is 53 years old.

I connected the tap to the kitchen sink tap which
was fed from the mains. then I opened the faucet in
the front  bathroom.

What I ended up doing  was reverse flush the pipes in between.
It worked. Now I get a decent flow at the rear tap. Not great.
Not good enough to shower with but enough to do the dishes.

Air conditioner, washing machine, table fan, dripping faucets,
roof tiles, gutters, refrigerator, computer equipment,
fluorescent lights, sewage pipes.

I've had a go at all of them. Unlike the professionals who
do not have to live with the consequences, I have to answer
to my customer which is me.

Oh I almost forgot my car. I do all the belt, hose filter and oil
changes. I can strip the distributor down to the individual
ball bearing ball. I even patched a leaking vacuum advance
diaphragm. I doubt you can find a mechanic who is willing
to go this far especially when parts are no longer available.

There are exceptions like this guy but even he depends on
available parts.



I am not as thorough as this guy.

Here are the reasons I choose myself to do the repair.

I don't lie or fake it.

I guarantee the repair. No extra charge to fix it again if I botched the repair.

I use the best quality parts available.  

I go above and beyond. My wife's car had corrosion on the gearshift
shaft at the seal and gear oil was leaking. The mechanic handed me the shaft.
I cleaned that out, filled in with steel laden epoxy and sanded the blob until
that was level. It never leaked again until the day the car was scrapped.
1 week ago

johny ortan wrote:Fair points, Edward — the body-shell condenser is a good catch, I shouldn't have assumed dusty coils without asking
the model first. Main thing is you're cooling again. And a man who kept cash registers, ATMs and mainframes alive has nothing to prove to a fridge — enjoy the second-hand unit.



There were other threads or portions of threads in Permies dealing with poor air
conditioning and refrigeration. I thought I would deliver an all encompassing
account that would help others as well as myself when it happens again,.

Especially about the 8 hour cooling period before defrost. I wish I had
known about that sooner. I must have seen over 20 YouTube videos
before anyone mentioned that.

Not wanting to guess and buy part after part to test, I found the same
model - obviously second-hand - but that was sold off months ago.
So swapping parts to isolate the failure was not possible.
My last shot and that door was closed.

Any idea why the defrost cycles appear so frequently?
A failing timing capacitor?

The increase in current draw may be due to the reduction in supply
voltage when all the street lights come on or something. I have
noticed that. I only record the current - not both so the view
may be distorted.  I don't have any device that can sample continuously.
 
I have a Raspberry Pi 2B but there are are far more urgent matters
to attend to.

Time was running out so we went for a second-hand unit.

It is still running to this day.

1 week ago

J. Syme wrote:While trouble shooting refrigerators or suspect power grids I will place a penny or stone on top of ice cube in IceCube tray in the freezer. If the unit fails long enough to thaw the ice so the rock sinks I know the food is suspected of going bad.



My trick is to place some ice cubes in a transparent plastic cup. It evaporates so I
occasionally top up.
2 weeks ago

johny ortan wrote:Edward, your log is better than most service calls I get, and I think your conclusion is close. In order, I would suspect:

1. Power and heat rejection first. That dead, daisy-chained socket, the heat wave, and a dusty condenser or tired condenser fan can all starve or overheat the compressor before anything exotic fails.
2. Defrost running too often. Defrosts crowding together in early May point to the board or a drifting sensor, even with a board replaced once before.
3. Airflow. Temperatures only reached your target marks after you removed the fridge control flap, so a stuck damper or weak evaporator fan was strangling cold-air flow.
4. Sealed system last. The current creep from 489 to 512 mA, with poor pull-down, fits a tired run capacitor, a weak compressor, or low refrigerant.

Simple checks first: unplug it, confirm full voltage at a known-good outlet, clean the coils, verify both fans spin freely, and test or swap the run capacitor, after discharging it safely.

Call a pro for anything sealed-system: refrigerant, brazing, or a compressor swap on a fridge this old is rarely economical, especially once food safety is at stake.



01 We used a different socket - same weak refrigeration.
     This is Japanese. The heat exchanger is the body of the refrigerator so no dusty condenser or fan.
02 It could be the sensor but the readings trend down. It doesn't go all over the place.
03 The airflow is not strangled.
    There is only one fan and I can feel it.
04 Ha ha ha. The pro is not interested. We couldn't wait any further and got a second-hand unit
     without those bells and whistles and internet connectivity. This unit is a bit smart - the fan stops when
     the door is open and the lights are LED so no need for my stash of replacement bulbs.

I used to repair supermarket type cash registers, Automated Teller Machines all the way up to machines
the customer needed a US Government Licence for. If you know you know. With the latest mainframes
you could power down that processor and swap it while the rest of the mainframe continues
running. My skill set is no longer needed.
2 weeks ago
This how I eat out as well as in.

The cutlery is spotless so it is a quick lather and rinse.

Less oil, less detergent, less environmental impact.

Bones are collected back for bonechar.

Excess is for leftovers - I carry a spare sauce shaker.
This is for milk since they usually substitute evaporated/condenser
for the cheaper creamer varieties.

2 weeks ago