MarkSummer
Perhaps a more direct analogy is "literally miming gold hurts the environment (since I highly doubt renewable energy is significantly leveraged in the supply chain)".
> That is, you think that relative to the benefit provided, the use of (harmful) energy to run bitcoin miners doesn't justify its environmental cost.
It makes me wonder if you couldn't somehow tie a renewable energy certificate (1) to a mined coin. I suppose green coin (2) is a similar, albeit indirect concept (i.e. value is from a unit of carbon sequestration).
1.) https://www.epa.gov/greenpower/renewable-energy-tracking-sys...
In fact, that is what they still do. As someone who deals with ABS regularly, it is as weird of a conflict of interest as one would think. ABS, as far as I've seen, is comprised of honest folks who take their jobs seriously (i.e. they don't take it easy on shipbuilders or owners in hopes of retaining business). However, it's an odd dynamic. It's kind of like being sued and having to pay not only your defense lawyer, but also the prosecution's lawyer.
In lieu of a cube, you could use three (R,G,B) dichroic notch reflectors (mirrors) (2) and combine the lasers 'manually', but the cubes are nice because you don't have to build a mount for the I individual mirrors.
You can either scavenge a cube or dichroic mirrors from an old standard projector, or pick them up online for a few bucks. After that, just place the combined beam in the same path at the red laser shown in this example set-up, modulate the three lasers according to an image's RGB intensity values (you can separate an image frame into three RGB frames using openCV), and there you go.
Tangentially, the basic idea of scanning a laser to form an image is what underpins the Virtual Retinal Display (VRD) - a head up display technology developed at the Univ. of Washington and later attempted to be commercialized by Magic Leap (ML) for Augmented Reality eyewear. Even though ML hasn't panned out, I still see the VRD as a very viable path forward for high resolution/field of view AR displays.
On Navy ships you have a slew of EM radiating emitters, not only from your own ship, but also from other ships that may be close by. For that reason, a lot of time and effort is spent EM-hardening equipment and cables from being susceptible to EMI and also ensuring radiating emitters don't exceed spectrum and intensity limits - whether they're intended to radiate (e.g. antennas, radars, range finders, etc.) or not (e.g. generators, motor controllers, etc.).
Mil-std-461 (downloadable here (1)) tells you how to test equipment/environments to ensure EM radiated emissions and equipment susceptibility are within standard/tolerable limits. If problems arise on a ship, there is shipboard testing that can be used to pinpoint the culprit and then you can mitigate (e.g. ferrite beads, shielding, proper grounding per Mil-std-1310, removing cable loops, etc.).
Sounds like these folks could use some good old fashioned EMI testing.
I currently use the "Should I Answer" app, mentioned below, which is about as good as it gets in terms of pissed off people working together to fight the good fight I think.
However, all of this crap is still jist a bandaid for a lack of our governmental ability (at least in the U.S.) to hold phone utilities accountable for the illegal use of phone numbers.(1) Fine the phone companies hard and the problem goes away.
1. https://www.consumerreports.org/consumerist/phone-companies-...
I this this "Pixel" reply is misplaced. I've been using "Should I Answer" for about a year on my Galaxy S6, and it does everything the OP was requesting and then some. I just donated to them yesterday for the first time in fact.
Even if you don't choose to use your contacts as a white list (which I don't because I often have client/prospect calls coming in that aren't in my contacts yet), it still catches about 95% of calls thanks to thepower of the masses fighting back.
If you don't have it, definitely worth a download
I've always wondered why the scalable/reusable shipping box wasn't a thing. To me, this is would be an incremental improvement over current shipping.
The idea was laughed off the screen.
For the latter transition, I got some sideways looks at first from people asking "you realize your taking a step back in your career, right?" My reply was twofold:
A.) I replied "I'm still getting the same pay and benefits, right?" The answer is yes.
and
B.) As an individual contributer I don't have to waste my time (which I could be using to actually work on creative and interesting projects) trying to fix the work/quality of complacent and mediocre engineers.
So, for me, if I get to manage a team of highly competant engineers, then I will gladly take that management role because the team actually extends my ability to accomplish more than if I worked independantly. However, if you want me to manage a group of half-ass engineers who have little-to-no passion for pushing the envelope, then I'd much rather work independantly as an individual contributer.
Life is too short to waste on menial tasks that do little to improve the world.
The kind of thing that kind of makes you second guess the "whacky" conspiracy crackpots.
This is an important perspective. Recommend sharing this insight with the article author to consider appending to their original article.