603 for maglevs, 574.8 for steel rail, set in France in 2007 by a hotted up, modified TGV.
China holds the record for a stock train at 487, set in 2010.
(all per Wikipedia)
It looks like the article might be implying that they will be the fastest trains operating in revenue service when they enter service, but that surely needs to be demonstrated with a production train in revenue service.
There's still a lot of flights through Russian territory.
Korean 007 could have been intentional (I believe the pilot involved still claims it was a military plane) but Hanlon's razor still applies here. They're firing a lot of SAMs at many targets without good controls.
The US is barely better; they shot down one (nearly two) of their own fighters about a week ago and then there's the Vincennes incident.
(1) Subject to subsection (2), a legal requirement for a signature other than a witness’ signature is met by means of an electronic signature if the electronic signature—
(a) adequately identifies the signatory and adequately indicates the signatory’s approval of the information to which the signature relates; and
(b) is as reliable as is appropriate given the purpose for which, and the circumstances in which, the signature is required.
(2) A legal requirement for a signature that relates to information legally required to be given to a person is met by means of an electronic signature only if that person consents to receiving the electronic signature.
Most of these are in a metal box, which blocks signal. Adding careful routing to get an antenna in an unshrouded position where it's still physically protected is a pain. Also, in the middle of an apartment building can give you pretty terrible reception in the first place.
GPS doesn't provide time zones or daylight savings info. The appliance would know where you are and what UTC time it is, but not which time zone you're in. The manufacturer could pre-program shape files in (yay, more memory) but they become obsolete the next time a politician decides to move time zones or change daylight savings. If this happens to you, your device will keep repeatedly changing to be an hour fast/slow no matter how often you reset it. You could have the GPS satellites continually broadcast shape files for the time zone but this would be a big change, use up a lot of the limited bandwidth, and it would take your clock half an hour to set itself.
it's like an extra $5-10 in parts and unlike a WiFi module, the manufacturer can't make any big data or ad revenue from it.
On underground lines, the PSDs are mostly for air-sealing. It allows you to air-condition the platforms without trying to cool the tunnels, and it helps the piston effect of moving trains pull air through the tunnels, rather than just swirl air around each platform.
Depends on the size of the plane. For bigger jets, yes, but for smaller planes the width of runway you need to do a u-turn is about the same as the width you need to safely land of a gust pushes the plane a bit sideways.
The Elizabeth line is already built with platform screen doors, although I believe they're only on underground sections. I don't know enough about this station to say whether it had them; I expect not.
Platform screen doors tend to be used underground mainly for airflow management. They are not primarily for safety.
They work less well outside. No overhead structure to anchor to, weather has a larger impact (particularly snow/ice), and they can become something to climb rather than an obstacle.
Exactly. The military isn't obligated to look at every single picture and tell you that it's not a drone. But if they don't do that, they can't say "we have looked at every single picture and confirmed there are no suspicious drones".
The military is rightly refusing to prove a negative.
I mean, its trivial to prove something isn’t Bigfoot on the grounds that Bigfoot Isn’t Real. That’s just Hitchens’s Razor. The burden of proof is on the person presenting the claim, not the one refuting it.
Shifting the burden of proof doesn't disprove the claim. You can look at a picture and call someone an idiot for believing it's bigfoot/a drone, but still not be able to swear that there is no way it could possibly be a drone.
It's like trying to disprove Bigfoot. Someone comes to you with a shaky, out of focus video with no audio, time, date, or precise location.
I can't prove it's not bigfoot. That doesn't mean I think it is Bigfoot, or that you should think so.
If you have good video and know where it was shot from and can cross-reference that with aircraft trackers? Then maybe they can do a good investigation. There's been a few of those where it turns out to pretty obviously be a helicopter, a V-22, or just a 737.
Especially since it's rather hard to judge scale on airborne things some distance away.
Sorry, could have been clearer. I was talking about random dumb civilians.
Quadcopters have been buzzing military bases for years, basically since they became available to the public.
With all this PR about drones and people sometimes blaming the military, the number of dumb civilians thinking about 'spying' on military bases will be on the rise.
Oh, I've had the name for a lot longer than that.