ghostfish

It's certainly a possible solution to the last mile problem, and one I've considered using myself, but the issue is what do you do with your transport once you arrive at your destination?

If your destination is a home or office, you can just take it inside, but what about a bar or restaurant? Leaving a bicycle outside is an invitation for theft and it's certainly too large to bring inside. Even a longboard isn't exactly simple to tuck under the bar or lean on your table.

This is exactly what several electric "bicycles" do now. They have a road mode which conforms to the federal 750W/20MPH limit, and an offroad mode that allows something like several kilowatts and perhaps 40MPH.

I doubt they're taking a loss, and I'd be surprised if they're not making a decent profit. What are the components? A 1080p cell phone screen, some cabling, custom plastic enclosure and straps, an IR webcam, and the PCB+components. That's not much, cost wise.

Duopoly? A large number of major cities and their suburbs only have 1 true highspeed option (cable) and slow wireless or DSL. FIOS deployment is sadly limited.

Aside from cost, what do you think makes a Tesla impractical for the "vast majority of drivers"?

I also backed the Hexbright. You're remembering that you'd have it by last Christmas because that was the original shipping date. I think the FAQ was changed once the delays were announced. I agree, it looks like we'll be getting a great light, but it took entirely too long, imo. The creator had a video with a functional light during the backing phase, so I assumed it was nearly complete, but sadly it wasn't the actual light we were backing in the video and development took a year longer than expected. The creator has been perfectly upstanding and handled things quite reasonably, it just took far longer than expected to design and manufacture the thing, sadly.

This same gist is on the Fandango website as of now. Some kind of library issue maybe? https://www.fandango.com/

This, a million times this. My understanding also is that the ODB port on many/most vehicles goes straight into the CAN bus controlling everything in the car. It's entirely possible you could gain control over any microcontroller in the car, send false messages, drown the bus, etc. through a device like this. It's a TERRIBLE idea from a security perspective.

I'm not sure what you're seeing, but Linode is right under Heroku on the right side "your web server" list.

My thoughts exactly. This is just complexity for complexity's sake. Useful as an exercise, but the -h flag already does this is an even more readable manner.

First of all, this is something that's always bugged me when using twitter, and I like seeing someone address it, but I have a comment. I agree with the 13" laptop screen examples, but how many people browse the web full screen on monitors over, say, 21"? On my 24" monitors (1920x1200) I usually have browser windows dragged to 2/3rds of the screen at most. Most websites look patently ridiculous at full 1920 width, let alone 27" or 30" monitor resolutions like 2560x1600.

Ah, thanks for the information. I'm familiar with signal processing, so the only way I'm used to seeing convolutions is through the multiplication of FFTs. I wasn't even considering the "regular" way.

As far as I'm aware OpenCL performance, while portable, is still somewhat inferior to that of straight CUDA on NVIDIA GPUs, hence my CUDA suggestion. I didn't actually look at the algorithms used in either so I can't comment, perhaps I'll do that tomorrow. What do you mean by using an FFT "for" a convolution? The algorithm is convolving the (presumably 2D) FFT of the game board with a disk filter?

But you missed the most important part of that quote. >"(in Ready, Stephan's software at the sourceforge link above runs much faster)" So using Ready it took a long time, but the actual code is much faster. I'd imagine you could write something in CUDA that would run this (and only this, not something generalized like Ready) plenty fast to do real time rendering on a new system, especially considering a GTX 680 has almost 5x the horsepower of a GTX 460.

Admittedly not in a web browser though.

Two thoughts here. 1) You're working from an awfully small sample, especially for a component that is supposed to be of such a high reliability. Then again, look at the probabilistic assessment of Shuttle success vs. actual. 2) The Merlin 1C engine is only going to make a few more flights afaik. Starting some time in 2013 they'll be switching to Merlin 1D.

>"Panels designed to relieve pressure within the engine bay were ejected to protect the stage and other engines."

Can anyone that knows something about the Falcon 9 design or rockets in general shed some light on this? That sentence makes it sound like the panels were purposefully jettisoned, which doesn't make sense to me. What do those panels do, what do they look like, and where are they?

The studies referenced in the article you linked refer to the construction industry, not knowledge workers. I would expect anyone producing widgets or physically fabricating things would continue to produce more simply by spending more hours on the job. The question relevant in the original article, and to most of the HN readership, is whether knowledge workers (programmers, engineers, etc.) can get more done by spending more hours at work. I tend to think not, past a certain point, but I'm not entirely where that point is. It certainly depends on what you're doing, culture, work/life balance, hard focus capability and many other factors.

This is so true. My car is the last generation of 3 series that has the classic BMW amber gauges (doesn't kill night vision) and no iDrive (terrible series of spins, pushes, and clicks to do something simple like change the radio station to a CD track). I've been in family member's newer BMWs with white gauge lighting and screens all over the place (dash and cluster) and a distinct lack of dedicated buttons that I can use without looking at a screen while driving. I hate it.

I agree. When I go to my car, I walk up to it and touch the door handle, which unlocks it. I sit down and press the start button to start the engine. The key never leaves my pocket, and I don't really care what it's doing as a user. (I personally care since I'm an engineer, but that's beside the point) To the user the unlock and start procedure has precisely 0 steps that aren't physically opening the door and stating the engine via a single dash button press.

A pulse jet is an incredibly simple kind of jet engine, usually with no moving parts. They were used on the V1 flying bomb in WWII. Wikipedia probably explains it better than I can http://en.wikipedia.org/wiki/Pulse_jet_engine . The version in this video is a valveless pulsejet.

Basically, he put the combustion chamber of the pulse jet in a tea kettle, so instead of just glowing red hot when it's running, it heats water. Also, it's awesome.

Have you considered a patch antenna or something similarly directional right on the PCB? Still only one radio and reasonably robust direction detection as far as "is the signal coming from in front of me or behind me" is concerned.

How loud is it there? The stone walls and tile floors make me think it's very live, acoustically speaking. Are people quiet enough that it's not a problem?

The zero–space kerning badly bothers me. With traditional stylized logos I think there's more artistic license, but when your logo is just a font, I feel it should be more readable.

I think you're attributing to throttle lag something that is primarily attributable to torque (which isn't to say there isn't throttle response lag, just it's a minor component imo). Diesels are similar to EVs in the sense that you don't need to let the engine rev up or downshift to get that "throw you back" feel quickly. Depends on the car, obviously.

Facebook login only? This is a disturbing trend I'm noticing with a number of new websites/services. I don't think I'm alone in saying I don't like allowing apps access to all of my Facebook data and timeline. I won't use anything that only takes a Facebook login. Any plans for a stand alone login or is the Facebook data necessary for matching you up with people to chat with?

Thanks for the info. So it's about the same resolution as the current generation of existing video headsets, but with a much wider field of view.

This sounds really interesting, but there's a distinct lack of specifications, especially when this is targeted at the developer/early adopter community. How high is "high resolution"? Some display glasses companies (Vuzix) consider 852x480 high resolution, which differs greatly from what I'd consider an acceptable resolution for anything but old/SD TV shows. More details are needed.

There is an 8 year warranty on the battery in a Model S, with mileage depending on which capacity version you own.

Interesting, what makes you say that DDG's results suck? I've been using it as my primary search engine for a few weeks now and aside from it not including a map in results unless you give it a very explicit address, I've found it no worse than Google's results.

How does this type of aircraft shift the balance of power? It doesn't appear to do anything "better" than a manned aircraft aside from not having a pilot to lose onboard.