tjohns

76 ms·

811.
by tjohns 11y ago
I interpreted the press release to indicate that WiFi HaLow will be 900 MHz only, but can coexist with traditional WiFi implementations on 2.4 GHz and 5 GHz. (The Wikipedia page seems to confirm this: https://en.wikipedia.org&#x2
812.
by tjohns 11y ago
Given that it runs at 900 MHz, it will require new hardware. At a minimum, it will require an antenna tuned for the new band, in addition to whatever changes to the WiFi baseband processor are needed to go along with it.
813.
by tjohns 11y ago
The baggage scanners do use x-rays. Much stronger than the body scanners, in fact, since (as you pointed out) the goal is to see through things. So yes, a dosimeter would react to them. I was about to say "hopefully nobody's sti
814.
by tjohns 11y ago
Regarding cancer: All the US scanners use millimeter-wave (radio) now. All of the older backscatter x-ray machines have been sold off. A dosimeter would show zero, because there's no longer any ionizing radiation involved.
815.
by tjohns 11y ago
At least the backscatter x-ray machines are gone, now replaced entirely in the US with millimeter-wave scanners. Personally, I don't care if somebody's looking at my body on a computer monitor. However, I do care if I'm being
816.
by tjohns 11y ago
The point was that a passenger isn't allowed to buy a hamburger for a private pilot as "compensation", even though it only costs ~$10 and doesn't even remotely cover expenses. (In the case of a "$100 hamburger run&
817.
by tjohns 11y ago
> A Google Login isn't as drastic as it used to be. To be fair, it's been possible to create a Google account without Gmail for a long time now. I remember creating one ~7 years ago, back when I ran my own mail server.
818.
by tjohns 11y ago
Given that these are used for peering between different independent networks -- pretty much the definition of the "public internet" -- there shouldn't really be much expectation of privacy. At least not if you're smart a
819.
by tjohns 11y ago
I get a feeling that this is what the Nylas N1 folks are doing with their sync server. They created their own JSON protocol and documented it surprisingly thoroughly, given that their desktop mail client is the only implementer right now:
820.
by tjohns 11y ago
Why do you believe that it's absurd? I live about 5.5 miles of a small (but busy) airport, and even at that distance airplanes are sometimes flying lower than I'd like for comfort. If I turned off the 400' altitude restrictio
821.
by tjohns 11y ago
Rules change. That's why you have organizations like the AMA, who can educate their members. (And you need to be an AMA member to use many of the model aircraft fields, anyway.) And even ignoring that, this topic has been on the nation
822.
by tjohns 11y ago
> It is illegal to fly below 1,000 feet except in an emergency or in controlled airspace. Not if you're flying a helicopter, which does not have a height restriction. Also, if an airplane pilot is flying below 1000' AGL, not on
823.
by tjohns 11y ago
I always wondered why cable networks couldn't have a Channel 1, even though it wasn't allowed on broadcast. After all, there's no other radio traffic in a coax cable to compete with. I suppose it could have posed a problem if
824.
by tjohns 11y ago
With one caveat: Cell towers aren't mandated to stay up in an extended power outage, unlike landlines. They have battery backups, but once those fail, it's a question of whether the phone company can hook up a generator in time. (
825.
by tjohns 11y ago
Sure, but if you're browsing the filesystem directly, it looks much cleaner. Remember that MacOS users spend much more time working directly with the filesystem, because (recent developments with Launchpad aside) there's no analog
826.
by tjohns 11y ago
Yes and no. At a basic level, yes, any CA can issue a certificate which can be used to launch a MITM attack. We trust that the CAs don't do this. If they're caught, the browser industry tends to revoke their CA status -- which is
827.
by tjohns 11y ago
Looking through their API docs, one of the things that I noticed is that they added a transaction log ("delta" field), which IMAP doesn't have: https://www.nylas.com/docs/#deltas Having a server communic
828.
by tjohns 11y ago
The Electron UI is all local. I believe the sync engine translates between IMAP and a custom JSON protocol they've created. I'm not sure what the performance difference is, but looking at the API docs, it looks a lot nicer to work
829.
by tjohns 11y ago
N1 is still in the early stages of development. It's missing email aliases, for example. LDAP + S/MIME are definitely not implemented yet. That said, the platform seems to have potential. I don't see any reason why these coul
830.
by tjohns 11y ago
>> * Barometric sensors >You mean like current air pressure? Are there common devices out there with these? (None of my computing devices have anything like this, for example.) (and what would I want this for?) Most modern phones h
831.
by tjohns 11y ago
Chrome 46 on MacOS. And I think you're right. I just removed the loop attribute from all the <video> tags, and CPU usage quickly dropped back down to normal.
832.
by tjohns 11y ago
For some reason this blog post is using 100% of my CPU while it's sitting idle in the background. Really odd for something that's just static text. Any idea what's going on here? (Ironically, the actual demo site (pokedex.org
833.
by tjohns 11y ago
Instant Run only works from within Android Studio. We still support command line builds (and will continue to do so). However, as I understand it, there wasn't an easy way for us to deploy an incremental build from the command line, as
834.
by tjohns 11y ago
Definitely not the Philips Hue bulbs. Those use a REST API on port 80 for network control, whereas these bulbs are using a proprietary binary protocol on port 5577.
835.
by tjohns 11y ago
Bitcoin is decentralized, but it's definitely not private. Every transaction is recorded publicly in the blockchain. Some folks are very good at backtracking to figure out how funds are flowing through the network. And sometimes it&#x2
836.
by tjohns 11y ago
I'm curious why they don't add SSH support to Visual Studio Team Services then. :) Edit: Apparently they are. But I still think it would've been better to layer two-factor auth on top of SSH keys, since that can be done secur
837.
by tjohns 11y ago
I like the idea of adding second-factor authentication to your Git credentials. But doing this using OAuth to a cloud service just seems like the wrong approach. Use SSH keys, and then either (a) set a good password on your key, or (b) stor
838.
by tjohns 11y ago
Regarding Docker: You can easily run your own Docker container registry. The DockerHub UI isn't open source, but the underlying server and protocol for fetching/uploading images is. See: https://hub.docker.com/_&#x
839.
by tjohns 11y ago
Amdahl's Law definitely came up in my undergrad CE/CS courses at USC. I'm not sure how you could teach a computer architecture or processor design class and not mention it. And for what it's worth, we still covered C&#x2
840.
by tjohns 11y ago
Eddystone has a couple different modes. One of them is to transmit a URL, but beacons can also be configured to transmit a UID. Not all Eddystone beacons will be transmitting a URL. That said, I believe Physical Web does use the Eddystone-U

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