skysight-inc/HackerNews huggingface dataset:
Trucking is one area where the per-mile costs are really important, unlike most passenger cars. The cost of electricity is generally much much less than the cost of fuel, so there's definitely the potential for a compelling offer for hauling, even if its only a subset of all uses of semi trucks.

Electric drive trains are excellent at heavy loads; many huge haul trucks, trains, etc. use diesel electric where the diesel is just a fuel source to generate electricity for the real workhorse, the electric motor.

So it's really just the battery that's the hard part here.

Most EVs get ~3.3 mi/kWh. If the increased air resistance means only a third of that efficiency, a 450 kWh battery would be sufficient for 500 mile range. That's about 3 tons of weight, which is a lot, and take up about 2 feet of space behind the cab, perhaps. But since a diesel engine itself is going to weigh about 1 ton more than the electric motors and inverters, it's not a completely outrageous amount of overage.

Of course, the battery alone for this would be about $100,000k, as much typical tractor cabs these days. So clearly there would be some sort of swap program, and battery usage would be charged.

This all becomes a ton easier if designed for just, say, 250 miles before swapping batteries. But napkin math suggests that 500 miles isn't completely implausible, if you can get over the up front capital costs, and the slightly lower hauling capacity.
I'll look at the article at some point, Jawbone had multiple best selling products -- bluetooth speakers being one -- no idea how that covered investment. Hell, A16Z gave all of Skype one of the speakers 6 years ago as a thank you. They did some nice hardware.

What I do know, per your point, investment in and around hardware startups is not publicized. I wonder how some of the networking hardware startups that started the carriers of those I know (and benefited me) would be taken now.

Cisco / Nokia / etc. hardware acquisitions apparently aren't HN sexy.
I've commented on (and ranted against) the content you posted, not you specifically. I make similarly strong statements against any content posted to HN that I find to be harmfully wrong.

I haven't made any comments about you personally, as I don't know you. It's not personal, and I follow the "new" section, rather than any user(s) in particular.

When you expressed suicidal thoughts, I encouraged you to seek help. Again, not a comment about you as a person.
Tesla batteries can be swaped. They have a video showing it, and a single station doing it, but there is no need for it atm. Ive been driving my Model S for 2+ years now, and the charging options are plenty. Link to video of battery swap https://youtu.be/HlaQuKk9bFg
Only because they don't need it. Most people are comfortable with a ~300 mile range, knowing they can refill in 5 minutes. So most cars are built with 10-to-15 gallon tanks.

Build a car with a 30 gallon tank and you could easily be in the neighborhood of 1000 miles range.
Every nuclear power plant in the US has an NRC mandated Safety Parameter Display System. These were retrofitted after the TMI-2 meltdown. The SPDS is supposed to provide a concise view of critical parameters to avoid the sort of confusion that led to the TMI-2 incident.

In 2003 Davis-Besse had its SPDS disabled by SQL Slammer, a worm that congested the network on the site. So in answer to your question, yes these 1970s plants do indeed have devices interconnected in the contemporary manner, and compromises of these networks have already produced reportable events.

The core components of our power reactors are not at the mercy of software; operators have authority over reactor protection systems that are deliberately independent of complex digital controls. Nevertheless, a clever attacker could probably engineer enough confusion or interfere with ancillary systems badly enough to produce a notable incident such as a SCRAM. That would certainly make headlines and lead to a prolonged investigation.

Is it possible that greater damage could be done? Anything is possible. If so I'd imagine it might involve cooling pools, their circulation and alarms... who knows. Given enough time, knowledge and planning it might be possible to cause a serious problem.
You can certainly qualify unlimited service for reasonable use.

There was some UK court case where the ruling agrees with what you said. However, both then and now I disagree with it.

The reason is it is absolutely wrong in terms of language:

unlimited - without limits
reasonable use - use limited to a reasonable amount

The other problem is that reasonable is not a number. Everybody has a different reasonable. This is the same as saying a service has a secret limit which you won't be told about.

Why not just say there is a 5GB limit? That would be clear, fair and not at all misleading.
I don't think I would call JEE and Spring a failure.

They mark the turning point I stopped worrying about UNIX deployments.

An application server has all the features I care about from a container, including fine grain control over which apis are accessible to the hosted applications.

It doesn't matter if the application server is running on the OS, an hypervisor, container or even bare metal.

Back in 2011 we were already using AWS Beanstalk for production deployments.

Also OS/400 is like that, user space is bytecode based. For writing kernel space native code, or privileged binaries you need the appropriately called Metal C compiler.
Supposing I would be willing to fund a state; what happens when my neighbor doesn't, while still receiving all the benefits of law & order?

Basically, this is just setting up a giant tragedy-of-the-commons situation.
I wouldn't recommend this at all. Sure if you have a tiny site with very limited functionality or you're learning react, you don't need redux.

But if you're using components they way they're intended, (not cramming everything into a few overloaded components), you're quickly going to be passing down props down through layers and layers. It will quickly become a maintenance nightmare.

Just imagine that you have a button component that is 5 or layers down from you're stateful component. It's getting props to control it's state passed down through all 5 levels, and it's getting functions to change the stateful component's state passed down through all 5 levels. Now what happens when you want to move the button from your side bar to your footer?

Redux solves a very real problem, there are other solutions to this same problem, but eventually any non-trivial app is going to need something for state management beyond a single top level stateful component.
Creating json from the front end is easy now – diver.js
Most modern Intel and AMD CPUs have a truly random number generator, generated in a non-digital way.
To be fair, Jawbone predates all these companies and raised a good chunk of money in the process. Consumer hardware is hard. I had jawbone stuff many years ago - all the best to Hosain. The Jawbone story has been long, and his perseverance is unparalleled.
Cite? I know quite a few people that have Nissan Leafs and have had literally zero maintenance.
Html-Comments
One workaround is that I hope that it can climb up and down slopes that lead to the raised beds.

Does it detect cliffs or edges and avoid falling down?
Systemd compat for doas
Also don't forget the battery charging time. If your battery takes two days to charge, it will be show stopper to even start with.
> Most EVs get ~3.3 mi/kWh

Not if they're hauling around 40,000 - 50,000 lbs of freight.
And unless it's changed, the battery was soldered directly on so it's basically not replaceable unless you really know what you're doing.
I don't really understand what he's talking about. Most farm equipment nowadays has thousands in dollars of GNSS equipment and a multitude of other sensors.
Scaling by “delegation” isn't good enough
The author is wrong in saying that the testes are not protected, though. They're quite well-protected, with a leg on each side. Simple proof of this is that it's clear when these are damaged due to the pain, but most men will only experience this pain a couple of times in their life.

The testes are even more protected in quadrupeds, far away from any frontal fighting or sparring. And if you're a quadruped that is being chased by something that can damage your testes from behind, you have far bigger problems than damage to your testes.
Maybe the person meant: "increase the price more than the inflation rate". At least, that's how I'd read such a comment.
I've been looking for one of these, thank you.
I'd argue that the incumbents wouldn't have thought it possible to build a smartwatch or fitness tracker if it wasn't for these start-ups, though. They're just really good at acquiring and copying.

When the iPhone first came out, the way you measured your heart rate was by putting your finger over the camera on the back of the phone.
Show HN: Blur photo background automatically
Well I did say: "So clearly there would be some sort of swap program"

Though my intent was mostly so that the capital cost could be amortized over many uses by independent truckers, rather than them having to take out an upfront loan for the massive cost of the battery. But it also makes the timeliness of charging a non-issue.
>Gas is actually a loss leader...all profit came from in-store sales

That and the increasing prevalence of electric cars, Uber, and other shifts are why the gas-delivery model will likely be unsuccessful over any reasonable duration.

The idea seems to be moving in the opposite direction as the rest of the world.
They have to show up or summary judgement is issued.
Depends on the municipal government. Some municipal governments are truly corrupt and inefficient, so there might be rent seeking and increases in all sorts of costs.

Because it doesn't happen where you live doesn't mean it doesn't happen where he lives.
Seattle's $15 Minimum Wage Might Be Backfiring
Unfortunately no word on durability and maintenance guarantees. What happens after a few years when batteries lose most of their capacity? Who is going to take care of recycling? I'm honestly curious about details because as opposed to lead-acid batteries industry, there is no profitable or existing li-ion recycling market.
Analog (or analogue) computers have their uses, however, in my experience, with analogue electronic computers, they have many problems:

- limited dynamic range of perhaps 30dB (1000)

- it is easy to saturate a signal (there is no overflow bit)

- oscillations are easy to induce, but once again hard to detect, especially in a circuit in the middle of a calculation chain

- noise gets amplified across the system
AR won't be worthwhile until:

1) It has a window to the AR larger than a wallet

2) It doesn't hog one of my hands for holding said window into the AR

3) Actually takes into consideration the the environment it's supposed to augment

Decent AR technology will probably be branched from current VR technologies, rather than mobile phones.
Another use case is invasive species control in parks and large public lands. As an example, Portland has a large park that stretches along a ridge-line for about ten miles, and it's getting overgrown by English ivy, which kills the trees. It's a big enough area that pulling it all by hand would be very expensive. Ivy-pulling robots would be pretty awesome, but it's a hard problem. Vegetation is thick and the terrain is everything but flat. You'd probably need some giant hexapods or something just to move around, and maybe some kind of Ivy-grabbing appendage.

Just mapping out the ivy infestation with drones and image recognition software would be impressive. There's enough room for a quad-rotor to move around in theory, but it would have to have some pretty sophisticated obstacle avoidance algorithms.
Wow, I didn't know that. And that's a lot faster than I would have guessed.

From Tesla: "a Supercharger provides up to 170 miles of range in as little as 30 minutes".

Yes, there is certainly a need for swapping batteries if you drive 500 miles a day, and are being paid to deliver on a tight schedule - you don't want to spend an extra hour and a half charging. But if you're spending 6 minutes swapping those batteries out (2 minutes per change), it's a lot more viable (especially if an EV can go up hills faster).

People don't drive a Tesla 500 miles a day, and even if they do they don't mind a few 30 minute breaks. Trucks are a bit different.
> Baloney, everyone knows you can't actually get a million dollars of storage for $5/month

That's actually just nonsense. Well, of course you can't get a million dollars worth of anything for 5 dollars. But the question is not how many dollars worth of whatever you can get per dollar (that's one dollar, duh), but how much of whatever you can get. And how do you find out how much that is? You look at market prices. You look at what offers there are in the market. Now, if the offers in the market only specify a price, but not what you get for it, you can't actually find out what a unit of whatever is worth.

> just like the people at buffets know you can't just scrape $1K of food into the trash without the buffet getting shut down. There's always reasonable use limits on "unlimited" that any customer is aware of.

That's a bullshit comparison. Buffets don't offer unlimited food, they offer as much as you can eat, which is very well constrained by basic human physiology and metabolism. "Storage for your data" has no such inherent limit, but completely depends on what you happen to use it for. "Unlimited" is not the same thing as "limit not specified as an explicit number".
If you see an estimation of human brain computation power, it's probably best to assume it's nonsense. There are wildly different estimates, and as computers have gotten faster, the estimates seem to have risen, which suggests ego is involved.
I just did a greenfield deployment of Windows Server 2012 R2 for a big virtualization environment, and ReFS was supposed to be ideal for that kind of application. Everyone I talked to about it told me it was a bad idea, mostly because the supposed gains in certain virtualization operations wasn't worth risking being the first sucker to find a corner case in refs.sys. Also, no data recovery tools support it outside of experiments.

Does anyone actually use ReFS in production?
Hi,

There is nothing about `rename`, RocketMQ has different storage architecture than Kafka. see https://rocketmq.incubator.apache.org/rocketmq/how-to-suppor...
Google releases Blocks to simplify VR content creation
Why would they? A sale is a sale.
Small correction, ARKit works on as little as iPhone 6s with reasonable accuracy.
And in the next sentence I completely spitball that it may be a third of that.

That's based on the drag, which is most of the energy spent on hauling.

Though another benefit of electric is that the kinetic energy of accelerating 50,000 lbs to 55mph can be regenerated, instead of lost entirely. And it's not an insignificant amount of potential energy, at really close to 2kWh.
How Infographics Play an Important Role in SEO Strategy
Perhaps my memory fails me but weren't Jawbone one of the pioneers in bluetooth?
user:	mabbo
created:	1527 days ago
karma:	6074

Active, long-standing account. If you're a sockpuppet you're a damned good one. :)

Out of curiosity, how significant is 50K to this guy?
That's hardly going to comfortable to keep your eyes focused on short distance for a long period of time. That's the problem with "holding the phone up to your face".
2003 is the year of Linux desktop!
Since we're here anyway: if we would just change web browsers to connect to a default port number obtained via DNS instead of always using 80/443 by default, then we could offer web servers through NAT gateways (by hosting up to 65535 web servers on a single IPv4 address). We'd need some way to tell the NAT we want to expose a port (some variant of uPnP or some less-dumb protocol), but other than that, it would be easy. And then we'd have effectively 65535x as many IPv4 addresses, which would be enough for everyone, permanently, and IPv6 wouldn't be needed.
How the brain recognizes what the eye sees
Right, the hung nodes issue is probably least related to kops (though it'd be great if in the future, kops could leverage something like node-problem-detector to mitigate similar issues). Of the other issues, the incorrectly applied cluster config (kops decided to update certs for all nodes and messed them up in the process, then proceeded to mess up the Route53 records for the cluster) is the most serious one, and also not likely easy to reproduce. Apart from that, kops has been an excellent tool and we've been very pleased with it.
This Classic Car Rally Might Be the Best Way to Explore the Baltic States
It makes sense to me, but we say "left the barn door open." I think the most natural translation is "gaping holes."
Thanks for propagating the HN Gestalt.
Lunacy and Style Come Together in This BMW G650 Cafe Racer
Yes, it's our roadmap, and we will support MQTT soon.
Exactly. If you can throw 2 battery packs into the semi, it can be charged twice as fast as a Tesla car without doing anything else. The actual equation (miles/minute) has a few variables (mileage of semi, weight, charge curves), but the conclusion seems to be that it would charge really fast. I don't think they're going to bother with swapping.
Over populated? By what metric? Looking at a list of country by population density, Japan barely cracks the top 40:

https://simple.wikipedia.org/wiki/List_of_countries_by_popul...
You're missing the obvious point, which is that anything to do with federal legislation is likely already a newsworthy topic, moreso because of pending legislation to address it. Finding NYT stories preceding legislation passing is almost a perfect example of correlation not equalling causation. Even a consistent pattern of (NYT story, legislation passes) demonstrates nothing about whether the NYT story is a planted bit of propaganda to ease passage of the bill.
Kafka is usually used in log collection and big data processing, which care less about latency.
RocketMQ is quite friendly for latency-sensitive applications.
And also with retry and track mechanism， it is used by finance or trading systems, such as Alibaba and other bank systems.
Honest question: why is "honest question" used here to ask what is a blatantly rhetorical question? Isn't the whole point of "honest question" to cancel the implication that one is asking a rhetorical question?
How does using Redux solve the tons of props through layers problem?
the old devices were based on heart (cardiac) pacemakers which were designed to turn off w/ a magnet. A bit of a dark side to the old chestnut about it not being a bug, it's a feature...

The newer ones use bluetooth so hopefully less susceptible. But yeah, have had case reports of refridgerator doors, mall security, TSA agents overzealous w/ their wands, and one instance w/ a Prius, etc. There is a gizmo they get that they can put up to their device and turn it back on; that being said, a lot of ppl have lost theirs, or have let the AAA batteries in them run out...
There's this thing called return oriented programming that this is a hard counter to. Return oriented programming replaced shell code a while back when stacks became non executable across the board.
Echoes of Wall Street in Silicon Valley’s Grip on Money and Power
Ferrari 488 GTB Tears the Streets in Joyride
The NYT was one of the chief cheerleaders for the Iraq War, both through Judith Miller being an outright mouthpiece for Bush administration propaganda, and more generally through being a friendly media outlet of "balanced" thinkpieces that set the stage for popular support for a non-declaration-of-war (the AUMF) that allowed Bush to invade Iraq based on some nebulous threat of a WMD attack in the U.S. that was never real.
Revisiting the Glory of the Land Rover Camel Trophy
Yeah will do that in upcoming versions.
As an anarcho-capitalist, I'd be really keen on a "HumbleBundle" type government funding model. E.g. you don't get to pick if you pay taxes, but you do get to pick which parts of the state get what proportion of your taxes. E.g. 30% welfare, 0% military, 70% infrastructure development.

You could even argue that such an arrangement is voluntary in a narrow definition of a term. Definitely not one to satisfy most libertarians/anarcho-capitalists, but good enough for us to say we're not living in a state where we have absolutely no power over the state's spending.
I think you missed the sarcasm.
Explore every GitHub PR between 2012 and 2017
Sounded cool, so searched for it. Page 41:

http://www.americanradiohistory.com/Archive-Elementary-Elect...
You just described how reverse proxies work, just by using ports instead of the host-header to choose the correct backend.
It's too bad MONIAC couldn't model the Stagflation of the 70's or it might be a useful model.
I remember at 19 having a summer job picking orders for a school book supplier. Order comes in, you pick it, then you laze around until the next order comes in. Now, I like to laze around a lot, but it still blew my mind the level to which some people would avoid work - they would spend more physical and mental energy 'not being around' when the pick came in, hiding somewhere in the stacks and keeping their 'radar' out for incoming picks... than just doing the pick and then lazing out relaxedly. There seemed to be additional value in specifically not doing work.
Marxism and socialism are often clumped together in these sorts of discussions. They both happen to be examples of pretty-bad and un-free systems of government.
You know, waste management is not so trivial in some cases.

Some items are classified as hazardous materials, and it's hard to get rid of them. You need to do a dump run, but many platforms do not allow you to do business involving hazardous materials (e.g: Craigslist).

I hope they have an answer to that. e.g: Getting rid of batteries and such.
Because you can use the React-Redux `connect()` function to wrap any component in your tree with a "container component" that automatically subscribes to the Redux store, extracts the data you want for that component, and passes it straight in. That way, the upper components in your application don't need to know that a leaf component happens to need a specific value and pass it down through N levels of components - that one component just grabs the data it needs from the store. A good example of this would be a list or a treeview, where every list item or treeview node is itself connected to the store.

I talked about some of the benefits of using Redux in a React application in a post I co-wrote: https://www.fullstackreact.com/articles/redux-with-mark-erik...