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johnm1019

723 karma · joined February 13, 2014

C++, Embedded, Automotive
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johnm1019··on Kinto by Mozilla – An open-source Parse alternative
Their website says this is a storage service. http://kinto.readthedocs.org/en/latest/

Parse is much more. https://parse.com/docs/android/guide

johnm1019··on The height limit of a siphon
IANA fluid dynamics expert, but it seems to me that for certain designs which move water by creating a lower pressure at some point inside of a pipe you've created a "siphon" in a general sense. If that's true, this could affect certain water pump and plumbing designs, albeit this degassing process may be prohibitively expensive.
johnm1019··on New development could lead to more effective incandescent lightbulbs
Incandescent lightbulbs often are suitable for small form factors unlike spiral incandescents, and don't suffer from the heat dissipation issues which LED lights do. A more efficient version of the technology would be advantageous in areas where those two things are important.
johnm1019··on Zimbabwe's plan to use China's currency
Reading the recent history of Zimbabwe's (soon to be previous) currency makes Bitcoin look tame.
johnm1019··on Background on the Falcon 9 Launch
Fantastic picture! I bet editors in the newsroom took a collective breath when they saw that email from the field.
johnm1019··on Backblaze's B2 Cloud Storage is now in open beta
Great to see competition in the space, especially from a "not super mega corp". Goodluck to you!
johnm1019··on Akatsuki probe successfully enters Venus orbit, returns images
Can anyone comment on why this image from the article has a perfectly straight white line in it? Seems suspicious. It appears to be just a smidge above the belt line.

http://cnet4.cbsistatic.com/hub/i/r/2015/12/09/bccd7491-ac30...

johnm1019··on The American Middle Class Is Losing Ground
In fairness to the authors of the study, their challenge was to create one number for the entire country.
johnm1019··on The American Middle Class Is Losing Ground
this. here's the graph which clearly labels it as aggregate income. http://www.pewsocialtrends.org/files/2015/12/ST_2015-12-09_m...
johnm1019··on Vermont utility says it will be the first to install Tesla powerwalls in the US
I believe the article author confuses the pricing. As presented I'm guessing the price quoted by GMP includes the inverter, while the price given by Tesla does not.

side note: original article appeared on arstechnica.com http://arstechnica.com/business/2015/12/vermont-utility-says...

johnm1019··on German intelligence: Saudi Arabia is playing a destabilizing role in the M.East
If a public government figure comes out and makes a public statement like that - there will be immediate follow-up for proof/concrete evidence.

When the national intelligence agency "independently" makes such a claim, it allows the leadership to defer proof. Additionally, it provides a subtle message of credibility and hints that "they" know something "we" don't.

johnm1019··on Triple-Triple Redundant 777 Primary Flight Computer (1996) [pdf]
This is a great reminder that some things are, in fact, complicated. Furthermore, smart people, good process, and hard work can conquer this.

Lately I've been flying a lot and even now, after hundreds of flights, each time the plane takes off I think about how amazing it is that this whole air-travel system works so reliably and safely. Kudos to Boeing and Airbus engineers.

I've worked in nuclear energy, surgical medical imaging devices, and in the auto industry - and it really gets me in a tizzy when a fresh "agile MBA manager" expects a "quick hack" solution to some of these problems. There just isn't always one when quality/reliability are requirements, not nice-to-haves.

johnm1019··on Why the Public Can't Read the Press
Would be neat to see these outlets offer individuals non-commercial licenses at heavily reduced prices. I wonder if some parts of the geek population would enjoy access to good(better?) information.
johnm1019··on The Most Common Job in Each State 1978-2014
I looked at the graph and saw the statistics, but your short and simple comment gives me pause. If in fact we achieve autonomous trucks it would mean we might potentially displace the most common job in 27-odd states.

We (the USA) as a country should begin thinking about the ramifications of this and how we might need to change to preserve not the economy, but society.

johnm1019··on US film of parachuting beavers found after 65 years
My Dad is a physician and was in/worked for the Air Force in the 60's and he worked in a lab where they were dropping monkeys strapped into seats on vertical rails. It was to test ejection seats and human/animal limits. Pretty gruesome honestly.
johnm1019··on Car and Driver's Review of the 1981 De Lorean (1981)
> The main problem with them is that Delorean Motor Company didn't really follow the concept of "model years," instead changing things as they went along, so restoring one to original condition is practically impossible.

I've heard there is a new car company that does something similar (not having precise model years) and also offers a car with gullwing doors.... I think it starts with a "T".... I wonder if they'll be hard to restore when collectors look back in 20 years.

johnm1019··on Is Radiation Necessary for Life?
Although I can't directly answer your question, I will suggest a similar phenomenon in humans. Many human cells contain functional units which work to repair broken DNA/RNA [0]. Furthermore, these repair mechanisms are enhanced/stimulated by increased levels of background radiation [1]. Thus, if human cells contain DNA repair mechanisms which are stimulated by DNA damage (from radiation or any other source), and we live in a constant background of damage inducing radiation, then we constantly have DNA repair mechanisms working in our cells. If we remove a source of DNA damage, then it is not unreasonable to guess that a lower number of DNA repair mechanisms are present in cells. In something as complex as the human body, I would guess (baselessly), this probably has secondary effects which could include growth/cell reproduction/health.

[0] - https://en.wikipedia.org/wiki/DNA_repair [1] - https://en.wikipedia.org/wiki/DNA_repair#Global_response_to_...

johnm1019··on Pluto ‘Wows’ in Spectacular New Backlit Panorama
> This new view of Pluto’s crescent -- taken by New Horizons’ wide-angle Ralph/Multispectral Visual Imaging Camera (MVIC)

Since this is a multispectral image it might not look like that to the human eye. I like this version better though!

johnm1019··on The Hardest Places in the World to Visit
I know you probably seem special, and many people of all nationalities are searched coming over that border. In fact, most of the parties searched on that border are either American or Canadian. They do very thorough random inspections of _everyone_. Once you are flagged in the system there is no way out. I'm sure in the questioning they dug into your background, and they do this with everyone... "Why did you go to Canada, you are an American?" (as if that actually makes any sense) As a further fun anecdote from US land borders, they asked a German friend of mind when he was crossing from Mexico > US via a land border whether he lived in West or East Germany (this was in the early 2000s). They did this to see if he was actually German or travelling on fake papers. lol. The correct answer of course (which he gave) is, "west and east Germany don't exist anymore"
johnm1019··on Pioneer announces MEMS-based LIDAR for self driving cars [pdf]
Sounds very interesting. After reading the press release though, I can't find any references to MEMS or why/how this is better than existing LIDAR sensors. Any other resources OP?
johnm1019··on Magnetic fields provide a new way to communicate wirelessly
> In their experiments, researchers demonstrated that the magnetic communication link works well on the body, but they did not test the technique’s power consumption.

Isn't total power/bit transmitted the most interesting point? Magnetic path loss in biological tissue is very well understood, see MRI. I don't understand how this is Ph.D. level work.

johnm1019··on McLaren F1 Tech Applied to Other Industries
> “We used to see changeovers as down time,” Glover says. “McLaren sees pit stops as an opportunity to win the race.”

This is a compelling way to change the frame-of-reference. Business X has a factory that makes widgets. By framing the downtime as a "pitstop" instead of a "break", it totally changes the mindset, expectations, and pace of the participants.

johnm1019··on The Teflon Toxin
Can you elaborate on this for me, I found the article confusing in its usage of C8 and Teflon (which seemed interchangeable as written?). What chemicals are used to produce Teflon which are harmful?
johnm1019··on The OnePlus 2 pushes the boundaries of how cheap a flagship phone can be
I'm guessing it was more related to the 'feature' of having replaceable backplates.
johnm1019··on Houndify: Add voice enabled, conversational interface to anything
There is clearly a knowledge graph coupled with this in addition to the speech recognition. Sorry, "meaning" recognition. I feel like there is an opportunity to connect the deep knowledge graph of Wolfram Alpha -- or that maybe Wolfram missed the ball by not connecting their graph in a more usable way.
johnm1019··on Warrantless airport seizure of laptop “cannot be justified,” judge rules
The first paragraph of the article says it was a South Korean businessman connecting to an international flight _from_ the US to go home.
johnm1019··on Amazon details drone delivery plans
Why is the challenge to keep costs low?

If this means I can have something delivered in 45 minutes, or maybe 20 minutes!, they can charge a premium for that. Otherwise I wait for the big truck to bring it by within 2 days and it's free. Right now there is no solution at any cost, in my market, by which I can order almost any product from Amazon and have it within a few hours.

johnm1019··on Preparing for Warfare in Cyberspace
I think you're slightly off the mark. The defense secretary probably has no idea what Ruby-on-Rails or NOP sleds are. He wants to encourage folks who are clearly intelligent and strongly motivated, with a background in software, to come to the DoD and apply their energies and efforts to learn about electronic offense and defense. Surely they don't expect _everyone_ who enrolls in the Army Corps of Engineering to understand the engineering fundamentals of war machines. They teach it to them on top of their diverse backgrounds in other branches of engineering (water/waste, civilian infrastructure, automotive, etc...). Their background is important to learning the new knowledge quickly -- and they have a gap to fill.

Few folks are born with expertise in design patterns, user analytics, and UI design. They develop those skills with education and practice. The DoD wants those same folks to apply their energy and brainpower to learn and develop a new sector of knowledge.

If they could just hire computer security experts right away they wouldn't be targeting app developers.

johnm1019··on Working Remotely From A Tropical Island In Thailand
If you're a US citizen it's not so easy. You are taxed on your worldwide income no matter what. There is a deduction for living abroad on the first $100,800 (2015) of income or you can also take a credit for income taxes paid to another country. You also need to pay into SS and Medicare either in the US or in another country which we have a treaty with. Don't get me wrong, getting the first $101k @ 4% tax sounds pretty good! Just want to make it clear that US citizens will pay taxes to Uncle Sam no matter where you try and hide.
johnm1019··on Apple – OS X – Photos
As the great teacher of my Monte Carlo course taught us, "If something can happen, it will."
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