tjohns

56 ms·

691.
by tjohns 9y ago
$30/month? Even with Disney's entire lineup, no way it's worth that much. Given that online movie rentals are ~$2, that's watching a full length movie every other day. There's a limit to how much TV you can watch. (
692.
by tjohns 9y ago
WiFi Aware is an OS-level feature that's being added in the upcoming Android O release. It also requires new hardware support, which means most phones don't support it yet. Nearby isn't using WiFi Aware. We want it to work on
693.
by tjohns 9y ago
And yet, when the Asiana accident happened the complaint was that the pilots were relying on automation too much and didn't know how to properly hand-fly the airplane anymore. Not all runways are equipped for ILS landings. Sometimes th
694.
by tjohns 9y ago
Are you sure you're not thinking of TCAS? (ACARS is used for delivering clearances and other routine operational/maintenance messages. Basically text messaging for airplanes.)
695.
by tjohns 9y ago
Well, sure, there's workarounds. But most people aren't going to be running a VPN. And the documentation for in-flight WiFi explicitly instructs you not to take voice calls, out of consideration for other passengers. You wouldn&#x
696.
by tjohns 9y ago
It's actually a well known effect. Astronauts have reported seeing flashes of light when they close their eyes in space. It's believed to be caused by Cherenkov radiation from cosmic rays traveling through the vitreous humour of t
697.
by tjohns 9y ago
Totally agree. I'd really love to see Japan's ETWS system rolled out on the US west coast. I was in Japan earlier this year, and happened to be watching TV when the earthquake warning system cut in. It gave about 5-10 seconds of a
698.
by tjohns 9y ago
Some airlines (e.g. Lufthansa) also install GSM microcells in their planes. They allow you to completely disable flight mode, once you're at cruising altitude -- and therefore out of range of the terrestrial cell network. (Whether your
699.
by tjohns 9y ago
Most inflight WiFi services block VoIP and video chat, both to conserve bandwidth and to preserve sanity in the cabin.
700.
by tjohns 9y ago
Kerberos absolutely works through NAT. I used it to connect to campus servers back in college, through my home NAT. There is an optional field in the Kerberos ticket that can contain your client address, as an additional point of validation
701.
by tjohns 9y ago
Kerberos assumes there's a out-of-band mechanism for bootstrapping and establishing trust with every participating server. More specifically: Every server needs to have a unique secret (symmetric) key, which needs to be known by the KD
702.
by tjohns 9y ago
Worth noting for completeness... In Kotlin you can take that a step further: mButton.setOnClickListener { /* do something here */ } (In addition to SAM conversions, both the parenthesis and input variable are optional.)
703.
by tjohns 9y ago
It's not supposed to be a kill switch. (Even though it works as one.) The domain check is there to detect whether the infection is running in a sandbox environment. If the domain check succeeds, it assumes it's being analyzed and
704.
by tjohns 9y ago
Two red lights... which are also square (other lights are still round). It's actually a pretty good design.
705.
Someone hacked every tornado siren in Dallas. It was loud.(washingtonpost.com)
7 points by tjohns 10y ago|1 comments
706.
by tjohns 10y ago
You can do spectroscopy on the light emitted from stars and see what elements it's made of. This, combined with our understanding of physics, both offer overwhelming support for the notion that stars are powered by nuclear fusion.
707.
by tjohns 10y ago
Looks really nice. Maybe I'll finally get around to reading SICP, given how often it seems to come up in discussions here. :) That said, it seems that the font in this version is insanely large. I know large fonts are trendy right now,
708.
by tjohns 10y ago
As someone who grew up in the mountains, I can tell you that the plows (and tire chains) do a fantastic job of stripping all the road markings away.
709.
by tjohns 10y ago
Misleading title. The way this is phrased, it sounds like a reactor meltdown occurred (!) and is now under scrutiny. In reality, it's just an energy startup's exaggerated performance claims that "melted down" (were prove
710.
by tjohns 10y ago
Out of curiosity, what would you do instead? From person experience with a family member who had a severe case of alcoholism (and eventually died from it)... there's very little you can do to help somebody if they don't want to qu
711.
by tjohns 10y ago
Not to sound harsh, but have you dealt with someone who has a serious drug problem before? When things get very bad, you try anything in the hope it gets though to them. (It often doesn't, but you try anyway.) Keep in mind that major d
712.
by tjohns 10y ago
They don't need to be on different channels, but it's recommended for performance (due to co-channel interference). Think of it this way: Each channel provides a fixed amount of bandwidth, and neighboring APs need to overlap sli
713.
by tjohns 10y ago
It's worth noting that newer Ubiquity APs no longer support Zero Handoff. Part of the problem was that all the APs needed to be on the same channel, which caused co-channel interference under heavy usage; there was a significant perfor
714.
by tjohns 10y ago
> Like how it is generally illegal to record phone calls without notifying everyone that a recording will be made. You may hear with your ears the content of the phone call but that doesn't mean you should be able to record it secre
715.
by tjohns 10y ago
CBP can't deny entry to a US citizen. They could temporarily inconvenience you, or confiscate your belongings (or arrest you if you actually break the law)... but they would not legally be able to detain you indefinitely. A lawyer wo
716.
by tjohns 10y ago
The real CA Senate vote happened during the June primaries, which decided the candidates that would appear on the November general ballot. It's actually not a terrible system. A lot of folks are typically reluctant to vote for a third-
717.
by tjohns 10y ago
Modern Android/iOS devices have hardware-backed certificate storage, which (if used by an app) would prevent an attacker from getting access to private keys.
718.
by tjohns 10y ago
You could just put a GPG subkey on it. That way it's revokable if lost, without destroying your entire PGP key.
719.
by tjohns 10y ago
Unlike a cert file, a hacker can't steal the keys in a Yubikey if the machine is compromised. Same reason why many enterprises prefer using TPMs for storing machine certs. The advantage of a Yubikey over a TPM in this case is that the
720.
by tjohns 10y ago
I have one that's permanently installed too, and the green LED isn't ever lit unless an app is asking for touch. Perhaps it depends on what mode you have it it? (I'm using mine in U2F + PGP Card mode.)

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