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Question 1:

Write a program that describes the number of SS's in "Slow Mississippi bass". Then multiply the result by hex number A & 2.

Question 2:

Do you think your peers will haze you week 1 of the evaluation period? [Yes|No]

There are a million reasons to exclude people, and most HR people will filter anything odd or extraordinary.

https://www.youtube.com/watch?v=TRZAJY23xio&t=1765s

Hardly a new issue, =3


There are only a few use-cases where global variables make sense:

1. Thread container registry with mutex lock for garbage collection and inter-process communication (children know their thread ID)

2. volatile system register and memory DMA use in low level cpu/mcu (the compiler and or linker could pooch the hardware memory layout)

3. Performance optimized pre-cached shared-memory state-machines with non-blocking magic

4. OS Unikernels

Not sure I have seen many other valid use-cases that splatter language scopes with bad/naive designs. YMMV =3


There are hobby metal printers that may eventually be applicable to regular consumer markets.

The reason "open public development" stalled was people were tired of subsidizing cloner companies with engineering projects, and disillusioned by the complete lack of community loyalty to the original authors. i.e. people proved they also didn't want to help pay the original sunk cost just like cloners, and would still get pissy when asking the hapless for support.

This is why some have our own metal printers... and the public gets 20 year old glue dispensers on a flimsy CNC platform.

Try building your own, it is actually not as hard as people assume. lol =3


Most of the current metal printers have a wacky vendor-specific supply chain, for feedstock and also post-processing. It's not really worth it for me to buy the equipment when I need an ongoing contract for it, and it will severely drop in value / usefulness once the vendor stops supporting it.

If I build my own it's probably gonna look like a mig stinger gaffer taped to a second hand kuka ;)

I have a CNC taig and a manual mill and lathe. Like most home shops I'm stuck at 90's tech level or below.

A lot of innovation has happened in the CNC space since the 90s but not much of it seems to have trickled down :/


In general, fully automated systems do not require persistent human labor, and thus only the cost of the machine/consumables/space/power constrain fabrication capacity.

Generally these systems are likely slower than mature subtractive CNC Mills.

"Is the resulting material close to isotropic"

Some processes hit above 98% density, but for hobby level machines it is rarely above 90% (3 cubic inches of 316L a day on a 120v 1kW max outlet.) The oxide inclusions may be an issue in some materials, but it depends on your use-case and process.

Best of luck =3


Well if the machine is slow enough it may not make enough products throughout its lifetime to pay back for its investment cost.

A key difference with additive manufacturing is it allows internal geometry/manifolds that are difficult or impossible using traditional fabrication methods.

Metal is always expensive, but hollow parts are not as weak as one would expect. =3


In general, the better sensor fusion algorithms incorporate kalman filtering.

https://www.olliw.eu/2013/imu-data-fusing/#chapter23

Best of luck =3


Yeah something else I need to do. lazy question, if I have an IMU that is swaying around as I try to move in a linear direction (e.g. Forward) is that something this kind of filtering would be used for? Regarding displacement estimation.

Edit: I get fusion is regarding multiple sensors


Normally, there are several types of sensors available, but most use 9DOF packages (3-axis gyroscope, accelerometer, and magnetometer)

gyroscope: fast over-sampled low-pass filter, but slowly drifts compounding heading errors

accelerometer: relatively stable, but dead-reckoning errors compound quickly

magnetometer: best stability, but low-sample rate and vulnerable to metal/magnets fooling/blinding the sensors

The fusion algorithms usually weights which data is consistent with the motion path, and attenuates the estimated pose errors.

Notably, not all sensors are equal quality, but there are probably better options now. =3


Keep in mind any centralized authority is subject to disclosure laws like the patriot act.

i.e. people can jack your phone/sms line for around $23, or access any email server on US soil for free.

https://www.youtube.com/watch?v=wVyu7NB7W6Y

This is why 2FA is actually more dangerous in some situations.


We're planning on enabling passkeys! Agreed that phone 2FA is not ideal, just the current setup.

Unless people are using a public key system like Kyber hardened gpg public keys its mostly security theater.

i.e. people may feel safe in the complexity, but are open to the same shenanigans of any unregulated exchange.

Children in Japan figured out magazine faces worked on cigarette machines too.

Have a nice day =)


Crypto is a dollar backed fiat currency substitute, or outright scrip.

https://en.wikipedia.org/wiki/Scrip

Precious metals like gold are also a terrible investment, but do offer liquidity when currencies fail. For a single person, no more than 1.7% of your portfolio should contain such leaky holdings.

In terms of investment, wait till the market crashes and buy freehold residential real-estate in larger growth cities with cash. This is the safest investment for amateurs. =3


>Precious metals like gold are also a terrible investment

Both gold and silver have appreciated more in value than the S&P 500 since the start of this millennium.


Typically, it tracks around inflation... but some people have cultural traditions around bullionism.

Keep in mind I heavily invested in ubiquiti at $12/share after their early legal trouble, so am probably not the type of investor you'd want to study. lol =)


Uh. Gold and silver were near 20 year lows at the start of the millennium.

Yes, this is an example of different asset classes performing differently over different periods. The S&P 500 performed extremely well in the 1990s, and while the S&P 500 has performed very well since, it has not kept up the same level of returns as were seen in the 1990s, nor did it usually perform as well before the 1990s. I similarly didn't say that gold and silver always outperformed the S&P 500, nor that the performance of gold and silver vs the S&P 500 over the last 25 years is predictive of future periods. All that I referenced was that over the mentioned stretch of the last 25 years, gold and silver have been a sound investment. The story is obviously a little different since the start of post-GFC quantitative easing.

Most index funds tend to have relatively stable growth... it is kind of the point.

Personally not bullish on bullion, but good luck =3


Indeed, met a few bears from the silver futures market over the years too.

I would lol... but some people lost everything, and that's never funny =3


"To help the poor, make it easy for them to climb the economic ladder"

There is no "the poor"... rather its just people that do not have any other options. Primarily, higher education or certified skilled trades are the only effective way out of minimal income survivor economics.

In my opinion, people working at fast food chains making the minimum legally allowable wage work harder than any CEO or academic I've met over the years.

I would recommend this book as it quantifies how income disparity impacts young Americans development:

"Outliers: The Story of Success Paperback" (Malcolm Gladwell, 2011)

https://www.amazon.ca/Outliers-Story-Success-Malcolm-Gladwel...

Notably, naively explaining passive income from assets to minimum wage workers is not usually a productive conversation. Rather, folks are just projecting their own perspective on people in a different situation. =3


Quaternions have niche use-cases that greatly simplify some problems that otherwise create ambiguities using naive approaches.

Many first encountered them in sensor fusion for IMU sensors, or 3D graphics. =3


Like many engineering problems, filter design rarely has a universal solution. Many MLCC exhibit resonant piezoelectric and or electrostrictive effects. Thus offer marginal noise floor performance in VHF/UHF LNA, and sometimes introduce more problems than they solve.

The main reason MLCC are so popular... is the price. =3


It's also probably dependent on who made them, and the engineering of the materials they used. After all even if every cap meets the spec but there are several paths to get to the spec.

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