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Ask HN: What are you working on and why is it cool?

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Re: Ask HN: What are you working on and why is it cool?

#681
post #669

Earlier quoted context omitted.

That is a sick looking plane! I would fly that thing in a heartbeat. Make no mistake though, if that plane makes it to the market it will be extremely expensive and will burn a whole lot of fuel. The engine they're using, the 200 HP Deltahawk, costs more than our entire plane at $70,000,[1] and while it is very fuel efficient for an engine with that power, it will still be burning 7-11 gph in flight.[2] It is unreaso…

you can't release a minimum viable product in aviation since any product defect will mean death. Do you think the increasing popularity of whole-aircraft parachute systems (which I note is an option on the SD-1) will improve the situation? It's my impression the Cirrus gets away with being hard to recover from a spin by making parachute deployment the standard recovery procedure.

As a pilot, I hope not. Ballistic parachute systems are a great safety feature, but they are not something that you ever want to have to depend on.

Re: Ask HN: What are you working on and why is it cool?

#682

A high performance, affordable personal airplane: http://www.skycraftairplanes.com It's extremely fuel efficient, can fly 575 miles on a tank, cruises at 118 mph, and comes standard with really nice instrumentation including GPS, collision avoidance, synthetic flight, and an auxiliary input for your iPod. They sell for $55k. Here's the HN post I made a few months ago: https://news.ycombinator.com/item?id=5826062

Nice. The 2-stroke engine puts me off a little bit, although I guess you won't do yourself much damage at 40mph if you have a shoulder harness (I assume that's CAS rather than IAS).

Re: Ask HN: What are you working on and why is it cool?

#683

Earlier quoted context omitted.

That sounds great. As someone who has a lot of interest in aviation and stuff that's related to aviation, the lack of flight simulators on the market is bothering. I tried almost every simulation that's out there, but none of them fit to my needs (good, simple UI with extremely realistic controls. that's not too much to ask, is it?). Hopefully you'll make something that's more appealing than other products. Speaking…

Thank you for the interest! Right now, x-plane basically is the only player in the flight sim market (MS has officially stated they've left - though I doubt it's for good, FlightGear is the only other flight sim worth mentioning, and it's nowhere near as good/accurate as what I need), which, as you (indirectly) pointed out, is troublesome - the market is ripe for disruption. I'm aiming to at least provide healthy com…

Yes, it's a shame. I still think FSX beats the pants off X-plane. I just find that X-plane isn't as realistic as FSX (even though it should be in theory). Anyway, good luck - it's a massive job :)

Re: Ask HN: What are you working on and why is it cool?

#684

Gingerbread and Candy Corn ( http://gingerbread-and-candy-corn.appspot.com ) - A one-stop spot for finding houses with holiday decorations. Sadly, I don't think it'll be ready for Halloween :( Though it should be ready for a launch near Black Friday :) As a kid, I always loved driving around looking at Halloween/Christmas lights and as I've gotten older and moved to a bigger city, its been a little difficult knowing…

Have you used your AWS free tier up yet? If not, you should consider jumping on it. Free 24/7 micro server for a year - and you host the webserver, so you can install Apache, Nginx, whatever you want. I used it for a while, and the most I got charged was a couple quarters for going over on disk usage (DB was doing unnecessary reads / writes). Also - this is a cool idea. As I've grown up in the same area, it seems lik…

I'm going to try to, video too; right now I ask for a link, but since I missed out on this big weekend I have time til Christmas to work on it. Obviously I can't add every house myself, but I've made it really easy to add a house and remove a house, all with a buffer to avoid spammers.

I have not touch AWS before, so I'll look into it. I went GAE because I'd used Udacity's Web Development course and in it they talk about how Udacity actually runs off GAE, so I thought if they did it, its do-able.

Re: Ask HN: What are you working on and why is it cool?

#685

Earlier quoted context omitted.

Is there any wireless communication? I've been building a similar pH monitor using XBee communication. If your buddy would like to someone else to work with, I've been doing this in my free time.

the controllers, the heart of which are industrial PLCs, do have ethernet modules but no wifi since the reliability is critical in automation. however with a wifi router and some quick config, you can get this fairly easily, assuming the client talks modbus/tcp and knows how to query the controller's register maps. i'm working on a plan to replace the ethernet module with a BeagleBone Black + Arch and a nodjs-based t…

Xbee isn't bad, provided you have good signal strength. Before I started teaching I worked for an HVAC optimization company that automated fast food restaurant chain air conditioning. It folded due to politics with the owners, but the product worked really well. One of our early adopters was actually a small Health Center.

I've got some modbus scripts that were written in Python while we were working with one of our clients. Its nothing great, just a few read/write functions. If you want I'll send them to you.

Re: Ask HN: What are you working on and why is it cool?

#686

Earlier quoted context omitted.

More than just monitoring! You can upload an STL to print, choose the slicer, and send to a queue that multiple printers can print from. All remotely via the web. We can encrypt the transmission, but technically you could read the GCode straight from the serial input at the printer.

Yeah I thought so. Do you see any solutions to that? like putting a piece of hardware at the very end overriding or substituting the printer's control board, that would be able to decrypt the gcode and directly control the motors and extruders or the final electronics. I'm imagining this piece of hardware would work like the horrible hardware keys: the 3d file or gcode wouldn't be sent if it doesn't detect this hardw…

I'm not sure if it would be possible, unless we replaced the printer's control board, but I will look into it. It's probably more worthwhile to just embed our software in upcoming printers.

Re: Ask HN: What are you working on and why is it cool?

#687
post #635

SilverAir - An athletic shirt that doesn't smell and designed to be worn at the gym and for everyday wear. demo@ http://www.yathletics.com It's cool because: It's made using pure silver which kills the odor-causing bacteria in your sweat, so you can -wear this shirt for your entire day and feel fresh, -reuse the shirt more often (i do). The fabric is completely new and something I made with my manufacturers from scra…

You should market the environmental factor also. I saw a youtube thing a while back that pointed out the majority of energy usage in clothing is from washing, not from manufaturing. If this shirt neds washed half as often, that should be a major bonus.

Spot On.

We mention this in the detailed description/features of our product page (it's not on our website as yet). For the video, we tried to focus on some key features instead of all.

Re: Ask HN: What are you working on and why is it cool?

#688

Proper ( https://properapp.com ) - Easy to understand contracts for freelancers. Cool because it makes the process of creating, sending, and signing freelance contracts much less difficult. Ultimate goal is to get it to a point where a freelancer can pick from a series of pre-loaded templates related to their type of work (e.g. a brochure website, developing an application, wedding photography, etc.) and send their c…

Just had a quick look at your site. I assume it is US only? (I like the idea, I had a similar idea for flat rental contracts here in Barcelona).

How much lawyer time did you need to spend on setting it up?

One suggestion for the website, it clearly states the benefits for the developer, but I assume the customer half of the deal would end up seeing it as well. Point out the benefits to that party, make it seem more of a win-win, rather than a developer covering their arse.

Re: Ask HN: What are you working on and why is it cool?

#689
post #642

I'm working on a news reader that works in the opposite way of traditional news reading apps. It uses Twitter as a sort of enhanced RSS feed and ranks news based on how much they are shared in real-time, and lays them down in a newspaper-like format specifically designed for mobile devices. It allows you to find what's important for people rather then what matters to newsroom's editors, and put you in a whole differe…

Not available in the app store in Canada. It puzzles me why people do this, because it is just as easy to make the app available everywhere as it is to limit it to a particular country. Anyway, interesting idea. Pity about the gunshot wound in your foot. Hope it heals.

Simply put, I did it because what is interesting for Canadians or Australians is slightly different from what matters to people in US. I'm working to open it to other countries as well, but that requires some work on my side. At the moment is only available in US, UK and Italy. I should've mentioned it.

Re: Ask HN: What are you working on and why is it cool?

#690
post #652

I'm working on software that assists in cancer diagnoses. We apply a healthy serving of computer vision and a touch of machine learning to high resolution images (10Gpx) of cancer tissue. Hopefully we'll be able to make diagnosis faster and more accurate, doing our small part to save lives.

How did you get into this field, out of curiosity?

Somewhere between my main interests in molecular+systems biology and my work in microscopy and software(building and using), I gained an appreciation for biomedical imaging techniques.

From there, much hard work learning from oncologists, radiologists, pathologists, and technicians to figure out what we could do to enhance their work with imaging technologies.

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