HNHacker News
TopNewBestAskShowJobs

DEinspanjer

870 karma · joined May 28, 2008

[ my public key: https://keybase.io/deinspanjer; my proof: https://keybase.io/deinspanjer/sigs/E7lCu0RL_BV1bHA5XGOK7L2IhfQlE6TkXoKdsT8pxtA ]
submissionscomments
DEinspanjer··on Witness Accounts Show the Power of False Memory
I believe it is very hard to judge the officer that put him down too harshly. Here are my reasons for feeling this way:

1. The circumstances of the attack. The assailant was in a crowded public place and suddenly went berserk and attacking police officers with a deadly weapon and apparent intent to kill. Does not seem to be in a frame of mind to comply with an arrest in any way. The police were looking for him because of three previous attacks against pedestrians. He was believed to be mentally unstable.

2. He saw his partner struck in the head with a hammer, and I don't believe he had cause for confidence she could support him in a physical takedown.

3. If the officer closed to take him down by hand, and the assailant struck the officer with the hammer, he could be put out of commission and then the assailant would potentially have a pistol to use in a crowded street. Police rarely approach a person still armed or still having the intent to attack. They need control of the situation before doing so.

4. The officer did not continue firing after the assailant went down. The man lived.

DEinspanjer··on Lily – Drone camera
There was a touch of sarcasm, but I didn't read it as being directed to you.

Thank you very much for pointing the clause in the terms out.

I sent an e-mail to the contact us link with the same questions I listed above, and the developers replied with this information and the note that the user can hit the center button on the wearable tag to put the UAV into hover mode to prevent collision.

DEinspanjer··on Lily – Drone camera
Awesome, but my experience with current-gen pseudo-autonomous UAVs, these questions immediately come to mind:

Can it follow you around the corner of a building without clipping it?

Can it avoid bumping into a tree?

Will it climb above the trees to follow you through a wooded area?

Can it avoid getting tangled in an overhead utility line?

DEinspanjer··on Can a Smartwatch Help Prevent a Heart Attack?
A recruiter for mc10inc.com reached out to me and told me about their business which is exploring something here. Small wearable electronic stickers that are flexible and waterproof. I suspect that type of tech would even allow the all important 12 point ECG monitoring without the typical discomfort and immobility associated with the current method.
DEinspanjer··on Touch Pianist – Tap in Rhythm and Perform Your Favourite Music
I started by trying it out on Firefox (nightly), but after a few minutes, my laptop's fan started ramping up as the CPU usage climbed and then the sound became all distorted until it was unplayable. :/ I was playing the first Rachmaninov piece when it happened.
DEinspanjer··on Hacker Implants NFC Chip in His Hand to Bypass Security Scans and Exploit Android
Yeah. Even a QR code could be much easier to deal with. Maybe as a follow-up they'll demonstrate using a tattoo of a QR code. ;)
DEinspanjer··on Hacker Implants NFC Chip in His Hand to Bypass Security Scans and Exploit Android
I recorded a video that shows my hand a week or so after my installation: https://www.youtube.com/watch?v=WeIqDlaatp0

This was an xNT NFC tag: https://dangerousthings.com/shop/xnt-ntag216-2x12mm-glass-ta...

Turns out it wasn't installed too shallow, I just have thin and pale skin which makes it very visible. :) The scar did disappear completely. Still use it on my door locks and with a couple of apps on my phone.

Not sure if the antenna coil on this person's NFC chip is larger or better orientated than mine, but one thing I'll say is that it isn't that easy to get a random phone to pick it up. It took me several tries to figure out where I had to put my hand, and a few weeks before I could quickly and reliably get it to scan on the first try.

If I scan it with someone else's phone, it still takes several tries. The antenna on most phones isn't very large, and the antenna on the NFC chips are miniscule, so getting the right orientation and position isn't as easy as swiping an RFID or NFC badge.

DEinspanjer··on Project Fi by Google
When I bought my Nexus 6 from T-Mobile, one of the things the CSRs told me was that it would soon be supporting Wifi calling similar to how the other carrier branded phones did. They were just waiting on an update to Android.

Now this comes out, and I wonder if the update is still happening or if Google's answer will be to switch to Fi instead.

DEinspanjer··on Is This Justice? Charging an Eighth Grader with a Felony for “Hacking”
In one of the articles, it calls out that the child and his mother both specifically gave permission for their names to be used by the press.
DEinspanjer··on The button: social experiment driving Reddit crazy
What I'd probably do would be to have the JS in the button capture some user driven events such as mouse positions and click characteristics. If they had great foresight, they could have already been doing this for the previous 700k clicks.

With a reasonably sized observation pool, they could compare subsequent clicks and detect outliers.

I think it would be hard to circumvent since people attempting to reverse engineer wouldn't have the observation pool to know what signals Reddit admins were modeling. The biggest downside I can think of is that there would be some delay before calling out a cheater depending on the reliability of the model.

The client side JS could detect the lack of an event capture payload and warn legitimate users after they unlock but before they click so they wouldn't be flagged due to browser incompatibility or JS restrictions from a security policy or privacy extension.

DEinspanjer··on Pi, PINs and Permutations
Just a random question that popped into my head while reading (thank you for the article!)... What would be the longest repetitions of digits within various orders of magnitude of Pi?

In other words, the first 10 characters (again looking at only the fractional portion:

1415926535

The longest repetition is a length of one and the digit is 1.

Playing with regexes, I found:

In 100 digits, you get a repetition of the digits 592

In 1000 digits, the first longest repetition is 23846

In 10000 digits, I found a six digit repetition, 120190 but at that point, the quadradic nature of the regex made searching for 7 impossible so I would probably write a program that used something like suffix trees to get further.

DEinspanjer··on New Jersey legalizes direct Tesla sales
I can understand why they would have needed to limit this bill to only the exclusive manufacturers of ZEV just to get it through legislation, but I'm curious whether it would allow the other manufacturers to spin off the ZEV portions of their businesses into subsidiaries and then be eligible to sell directly as well.

It is a very contentious subject, but some people argue that part of the reason the existing big manufactures don't put enough effort into making and offering ZEV is because they can't rely on the dealers to actually sell them. Reasons given for this is that the ZEV compete directly with the hybrid and gas vehicles on which the dealers have far greater inventory and profit margins, so they have little to no incentive to sell the ZEV.

If ZEV subsidiaries of the manufacturers could be guaranteed a chance to sell them then that might be cause for them to spend more effort on making them work.

DEinspanjer··on Emoji Dick;
I noticed this title with passing interest a few days back, but upon discovering that the only preview I could find goes no further than the TOC and hence shows no actual sample of the usage of emoji to tell the story, I really couldn't see the value in spending $40 on it.

At this point, I am still not entirely clear whether the editor intended this as an actual work of art he wants to sell or just a farce. If it was a farce, I'd at least recommend selling fractions of the book for $1 each. I imagine he'd at least get a chunk of curious visitors to take a peek.

DEinspanjer··on FAA says monetized videos shot from drones are subject to commercial regulations
FAA spokesperson Les Dorr was quoted in the article as saying that it was possible the reason the FAA decided to send the warning letter was because several of his videos involve flying near and overhead of non-participants.

Depending on the UAV, that could present a significant danger to them, especially if he lost control of it. The FAA letter makes reference to this at the bottom of page one.

Flying in that manner is against the regulations of the AMA.

I suspect that the reason the FAA letter even mentions the word "commercial" is because there are basically three ways to fly UAV that the FAA considers legal:

1. Government -- I don't know much about this one.

2. Commercial -- requires the appropriate licenses and permits from the FAA with strict guidelines on the restrictions for any given flight.

3. Hobby -- The FAA Modernization and Reform Act of 2012 has a few specific requirements to be eligible to fly as a Hobbyist. The first is that the flight does not result in any revenue (with a few very small and fuzzy exemptions) and the second is "the aircraft is operated in accordance with a community-based set of safety guidelines and within the programming of a nationwide community-based organization"

Since he was flying in a way that would not be in accordance to the AMA's regulations, and he isn't flying as an authorized government agent, the FAA is likely putting him in the only remaining category, commercial.

All that said, I despise the way the FAA is treating UAV operators. Everything from their absurd interpretations of the FAA Modernization and Reform Act of 2012 to their glacial pace at actually making commercial flights a reasonable possibility.

DEinspanjer··on Leonard Nimoy, Spock of ‘Star Trek,’ Dies at 83
If this was Reddit, you would have all my gold. I remember this video and it was as awesome as I remember. Thanks for the link.
DEinspanjer··on Impossible Escape?
Or it could just be assumed that both you and your friend read Hacker News. :)
DEinspanjer··on U.S. judges propose updating warrants for Tor, remote searches: p338 (2014)
FBI seeks flexibility for venue of warrants against users of VPN and Tor (p. 338)

seems like a reasonable improvement.

DEinspanjer··on Cat Litter Boxes and DRM
Yeah, our CatGenie used to service two cats, with the second one only occasionally using it as he vastly preferred being an indoor/outdoor cat and doing his business outside. That ended last Christmas day when he tried to race a car across a snowy street to get to the "next door's garden".

That solution might not work out well for everyone.

DEinspanjer··on Cat Litter Boxes and DRM
This and the other things I mentioned in my response to that article ( https://medium.com/@deinspanjer/the-catgenie-doesnt-eliminat... ) could certainly turn some people off of the idea of using the machine entirely. That said, it all depends on your situation and how much you enjoy having cats and how much you hate regularly cleaning out the liter tray.
DEinspanjer··on One device, 1TB of personal cloud storage
Yeesh, I missed the monthly charge. What legitimate reasons other than pure profit would they need to charge a non-trivial monthly charge? Unless they are completely failing to sell enough devices to accommodate the distributed storage, they aren't having to store the data themselves. At most it seems they just have to have servers to facilitate the distributed coordination.
DEinspanjer··on Two Simple Steps Helped Me Learn Vim
I first saw Vim in use back in 2000. I was working at NuMega (Compuware lab at the time) and I was a Windows only user that was just starting to get very comfortable with the DOS prompt and I used Notepad for any editing that wasn't done in Visual Studio.

I had some huge file in which I had to do a bunch of refactoring. Some search and replace, and some reorganization.

I had been plodding away, copying, pasting, and repetitively hitting the arrow keys and typing a few characters in each place for about 5 minutes when a friend came over and saw what I was doing. He was an absolute *nix expert. After a few moments, he told me that he could finish all those changes in just a minute. I had seen him code in Vim before, and was impressed, but it seemed like magic at the time. I saved the file and went over to his desk and asked him to walk me through exactly what he was going to do. He loaded the file up in Vim and started with a quick regex that knocked out 80% of the work. He then recorded a macro that yanked the current counter number into a buffer, searched for the next edit position, pasted in the counter number, incremented it, then shifted position to the next code block and updated that reference as well. He then asked me about how many sections there were. I said about a hundred, so he typed 99@q and poof! There were a few more, so he did a :g/<some keyword>/p to see how many lines there were and then did that many more macro invocations and the file was done.

I was hooked at that point. He set me up with gVim and some tutorials and taught me the most basic fundamentals and told me that it didn't matter if I couldn't make vimgolf par for the first year or so. If I used it and every once in a while picked up a new motion or command, after a few years, it would change my coding life.

He was right.

DEinspanjer··on Why Is Object-Oriented Programming Useful? With a Role-Playing Game Example
The highest priority rule is the in-line which specifies white-space: nowrap; which doesn't preserve multiple whitespace. Firefox and Safari does what he says. I'm not quite sure why Chrome is displaying it differently..
DEinspanjer··on The Saddest Thing I Know about the Integers
Wow.. the article and the comments here are fascinating. I don't have much to add, but I think what you guys are calling overtones are something some of my friends and I used to do as kids. One person would sing or yell a single loud note and another would sing or yell a sliding scale of notes listening for the overtone where a "spooky third voice" would chime in. We made up stories about it being a ghost summoning ritual and such. :)
DEinspanjer··on About the OS X Yosemite v10.10.1 Update
I just updated all the way from Lion (10.8). It seems that every display has its own menu bar which I don't know if I like yet, but more disturbing to me is that one of my external monitors is flickering off for a second or two every minute or so after this upgrade. Not sure what the source of the issue is, but it was working fine before the upgrade. :/

I used to use a Matrox DualHead2Go DP Edition so I could use my two 19" monitors in addition to my main laptop screen. Earlier this year I bought a LandingZone docking bar which let me run one monitor via miniDV and the other via HDMI. This solution has worked pretty well so far, so I hope the flickering either magically fixes itself or that I'm able to find some cause and resolution. :)

I need my three monitors. I've never liked the whole idea of virtual desktops, etc. and I like being able to see mail, calendar, shell, and browser just by glancing instead of requiring any sort of gesture or keystroke.

DEinspanjer··on Amazon Echo
I understand this, and I don't happen to agree with the people who feel this type of technology should not be embraced, but, to be fair, the chip is controlled by software that is constantly connected to the cloud and updating over the air. It would take very little to update the software to disable the on-chip keyword detection and just record everything. That update could easily be done without your knowledge and in a way that would be almost undetectable since the software stack doesn't appear to be open and the server-stack is in the cloud and out of your control.
DEinspanjer··on Making a brain for my model plane
You might want to take a look at AnkiDrive and track their progress on their API and such. That would be a very fun platform to start working with limited AI that would be readily visible in the real world.
DEinspanjer··on Making a brain for my model plane
Yes, most hobby grade planes and almost every multi-rotor out there now comes with an IMU on board for stabilization. Many of the more expensive multi-rotors will also come with a GPS and auto-pilot which will enable loitering (i.e. stay in this place in 3D space unless I tell you to move) and RTL (return to launchpoint).
DEinspanjer··on 2015 Tesla Model S P85D First Test
Yeah, but I would never provide that as an argument for equability. Charging from a 110 volt outlet typically provides as little as 3 miles of range per hour of charge, and I have personally experienced the FUD factor from various business owners when I have tried to make charging arrangements on a long trip, including one RV park owner who insisted that plugging my car in to one of his RV outlets would likely cause an explosion or at least set fire to it. :/
DEinspanjer··on 2015 Tesla Model S P85D First Test
While I don't agree with the tone or much of what the grandparent poster said, the "limp mode" is arguably true. Several people who have taken their P85 or P85+ to a track and run it hard have quickly hit slow-downs due to overheating. You can do some searching on teslamotorsclub.com for details if you are interested.

Having previously taken our S85 into the White Mountains for vacation, I can agree that it would be tough to get even 200 miles out of a single charge. The elevation changes, steep grades at highway speed, and especially the occasional strong winds will sap away the battery much faster than you'd want. We were able to get by just fine with a small amount of foresight and planning, but that is something many people don't want to deal with.

Granted, those factors would all hit an ICE just the same, but people are comfortable with the ability to pull over into even a tiny backroad town and find a gas station somewhere. That is a valid complaint.

DEinspanjer··on 11:57 – A short virtual reality horror film made for Oculus Rift
I keep thinking I should be able to set up my FPV goggles that have head tracking to connect to my computer to use as rift type goggles.. Every time I start poking around to see what it would take though, it seems all the similar projects are overseas which makes acquiring some of the components a huge hassle for me.
← PreviousPage 2 of 12Next →