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

news.ycombinator.com

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

#401

Post by flyinglizard »

mercuryrising wrote: post #293
flyinglizard wrote: post #254

Earlier quoted context omitted.

Hey, thanks for the feedback. As for ATMEGA328P-PU-ND, did you try using the optimization slider? :) Drag it all the way to its "Aggressive" setting, it will bump the quantity up to 25, and the total down to $48 - just like you said. As for package deals - you are right, this is what needs to be done. We're thinking about that.

Awesome, didn't see that before. Maybe turn it on by default, then have the option to back it off? Why is the quantity bump represented as an error with big warning signs? Shouldn't it be a good thing? Is there any way to represent shipping as well? That seems like the killer - sure something is $2 cheaper on Mouser than Digikey, but if I have to pay $5 for shipping, that breaks the deal. Something else that would be…

There is indeed a mailing list! when you move onto the final step it'll ask you (nicely and once).

The quantity bump gets shown as a warning because at some extremes the optimizing algorithm may choose to increase the overall quantity even if it costs you more than at a lower optimization level. Lets say you picked $100 worth of MCUs, and it knows it can get 30% more MCUs for 10% of additional cost - it may go for it. In such cases we thought the user would like to know.

Unfortunately we have no way to calculate the shipping at present... but the generic parts locator is a great suggestion, we'll do it!

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

#402

Post by mazumdar »

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 scratch. Without letting cost be a factor, we sourced some of the best performance yarns you can buy and achieved a feel that is super comfortable while being lightweight and breathable. To manufacture, we use seamless knitting machines meaning the body of the shirt does not have any stitches on it. (trust me, the silver is what sells but the most loved feature by our test customers is the material and how you feel as if you're not wearing anything - in a good way)

I'm building this company single-handedly over the last 10 months, and I had to teach myself bits n pieces of everything: apparel manufacturing, design, coding, law, filmmaking & editing. The product is launching in 4 days on kickstarter and I'm now in lockdown mode with tons of progress to make. Your feedback on anything is welcome.

The online shopping experience for this brand will be fresh: there will be no choosing from tens and hundreds of products because we make just one per category with superb design, quality, and finish. Shoot me an email if you're curious about anything.

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

#404

Post by [deleted] »

bm98 wrote: post #321
trey_swann wrote: post #48

https://www.truevault.com/ TrueVault is a HIPAA compliant data backend for apps, devices, and sites. Developers use TrueVault so they can develop healthcare apps without building out their own HIPAA compliant infrastructure. You access data in TrueVault via our API and native clients. Think of TrueVault as Stripe for confidential patient data. You use Stripe to store credit card data so that you are PCI compliant. Ou…

So are you going to sign Business Associate Agreements with your customers? They won't be HIPAA compliant otherwise, under the latest HITECH rules. That's where the analogy to PCI breaks down.

[deleted]

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

#405

Post by doctoboggan »

michael_nielsen wrote: post #87

A book that explains the core ideas of neural networks and deep learning. Cool because: * The book incorporates lots of running code for readers to explore and extend. * The book's philosophy is to go deep into the core concepts of deep learning, not to superficially cover a long laundry list of ideas. This gives readers a solid foundation to build on, and makes understanding other material much easier. * Deep learni…

What language are the examples in?

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

#406

Post by carleverett »

natejenkins wrote: post #333
carleverett wrote: post #90

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

Just out of curiosity, what are the monthly maintenance requirements and costs on a plane like this? Very nice btw.

Great question! I'll try and go over all the costs for you here:

Annual Inspection: ~$400

Insurance: $17/mo. for just liability, $130/mo. for full coverage.

Hangar Fees: $0-$500/mo. (varies greatly on location. Our plane has removable wings and can be stored in a trailer, and is small enough where you can rent 1/2 or 1/4 of a hangar)

General Maintenance: ~$50/mo. There are maintenance procedures at 25 hours, 50 hours, 75 hours, etc. that are pretty simple on our plane and all called out in the maintenance manual. At 500 hours the engine needs a top-end overhaul, which we do for free, and the 1,000 hour complete overhaul is factored into the hourly operational cost.

By aviation standards these are pretty low costs. In comparison, a bigger plane can have a $1000+ annual inspection, and an older plane can easily cost hundreds a month in maintenance (this is the big drawback to buying used, which is a popular way of getting a plane at an affordable price). It's hard to give a confident number for monthly costs with price variables such as insurance and hangar fees, but these are all things pilots need to think about and plan for.

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

#407

Post by klaasvakie »

flyinglizard wrote: post #76

http://sandsquid.com - A web app for quickly locating and purchasing electronic parts, specifically entire BOMs (all the components on one or more PCBs, instead of just a single part like other services out there). It's bootstrapped, and we just recently launched. So far we had good traction and virtually all positive responses. Notably, people report that we save them hours every time they use our app, and I firmly…

Wow - this is pretty awesome - I just ran a sample BOM and it worked very well. How do you plan to monetize this?

Some feature requests (I m sure you have heard these before):

1) Don't require exact part numbers for common passives (100nF 0603 25V X7R 20%) should get me to say the 10 cheapest results across suppliers.

2) Better information if part numbers are out of stock (Digikey and Mouser both allow you to see projected ship dates) - This also allows for another optimization slider, "Lead time"

Best of luck, this is very exciting.

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

#408

Post by sycren »

mercuryrising wrote: post #363

This thread needs more hardware. I'm making bike lights. First a little story. I was late to class one day in March, pothole season. I was cruising in the drops, when I came up to a T intersection. A van pulls up, and stops at the stop sign. As I approach the intersection, I see a pothole, swerve to avoid the hole, and the van pulls forward. I have about 1 second before I hit the van, land with my back on the hood, s…

Why not try and make a kickstarter campaign?

- You have a working prototype. - You have a problem where there is a real need for a solution. - People on this thread are interested.

Now you just need to interview a few people who cycle around, show off your gizmo and make it part of the video on your kickstarter page ;)

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

#409

Post by capnrefsmmat »

I'm writing a book about the many ways well-intentioned scientists can (and usually do) screw up statistics:

http://www.refsmmat.com/statistics/

I started when I was an undergraduate physics major. My entire statistics education consisted of thirty minutes being told not to use R^2. I started reading about statistical abuses and realized that I would probably have committed most of them had I published research -- my training was entirely inadequate. Most scientists do only slightly better.

Combine this with a bit of unhealthy obsession and I ended up with 14,000 words of explanation, which I promptly published online.

My current draft is at 28,000 words and climbing, but I'm having more fun writing than figuring out what to do with it. I'm quietly hoping a serious publisher will notice and approach me, saving me the effort of writing a proposal and getting it rejected however many times before someone picks it up.

(happy to share a draft with anyone interested! Email is in my profile)

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

#410

Post by Prefinem »

I am working on a new game I Invented. Called "The Game of Stones" http://thegameofstones.com

It will be a website along with a phone app.

Why it's cool? Because it is a tactical type game, like chess, checkers, or go but instead of two players, up to five players can play meaning that there are much more possibilities for winning. I am also developing a board game for it as well to be able to play as a group at home, or where ever.

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