Live data from Hacker News

Ask HN: What interesting problems are you working on?

news.ycombinator.com

461–470 of 709 posts

Re: Ask HN: What interesting problems are you working on?

#461
I simulate water distribution networks.

I create computer models of water networks and calibrate them so utilities can do what-if and growth scenario planning. (e.g. what happens if this pipe burst? how would the network cope with 20k new houses in 40+ years)

I'm also developing software to help water engineers build and run models, some of it opensource and some of it commercial.

I'm currently pushing most of my effort into an opensource javascript library to simulate water networks.

Re: Ask HN: What interesting problems are you working on?

#462
Trying to get companies to give me a chance without a 4-year degree. Even my own employer won't promote without a 4-year degree.

While this sounds like a complainy pants problem, this isa very real problem for a very large percentage of the United States. Without a 4-year degree as a de facto dues card, you are severely limited on your options.

At 34 years old, I could maybe have a degree by 40 while working full time and have to take on 30-60k dollars of debt to be competing for entry level jobs against 20-22 year old applicants (many schools now have programs so students can graduate simultaneously with a high school diploma and an associates degree). At my current income, if a degree could get me an extra 15% within a year of graduation, I would be in my 50s before I paid the loans off at current rates. That means I sacrifice the last half of my 30's to break even in my 50's and maybe make some extra money in my 50's and 60's losing out on 20-30 years of compounding interest because I don't have that arbitrary degree in anything as a dues card to say I'm worth hiring/promoting.

Blah.

Last year I made about 10% less than the year before because of zero overtime, our annual merit-based increases often are break even (sometimes not even break even) once you factor in inflation and insurance cost increases, throw in the constant nagging pressure of cancer risks (father died of it, mother had it, father's mother died of it), climate change, international trade issues which could see me laid off, automation possibly replacing jobs in the near future, it can often be quite crushing. Especially when you're trying to maintain sobriety and just want to run off into the woods with a cask of high proof alcohol and try and befriend a bigfoot to help provide food and shelter for you so you can die from Lyme disease or exposure living as a refugee in Bigfootville.

Meanwhile you see people with YouTube channels buying what equate to mansions (What's Inside, Jenna Marbles) and taking international trips monthly (What's Inside, Casey Neistat used to, on aircraft with seats in the tens of thousands of dollars a flight) and even crazy domestic trips frequently (What's Inside) and you're like, "Dude, I just want to make more than 34k a year".

I truly can't imagine what it is like for people that are consigned to working fast food/retail/service jobs as their sole source of income. It has to be all but crippling.

Re: Ask HN: What interesting problems are you working on?

#463

I'm growing the freshest lettuce, iron-rich kale, and a lot of other leafy greens! While in college (CS & Math), I got heavily interested in growing food in the most efficient and healthiest way possible. I was a dreamer when I started so I thought more of how to grow 'earthly' produce on Mars, but then I realized that my own planet Earth is so massively underserved. It's basically like this- I mastered growing leafy…

You should check out "The Real Martian" https://www.youtube.com/channel/UCd8t8Dq8oZeAjGDx_87azBw/abo...

and Beanstalk (a YC company) https://www.beanstalk.farm/

Re: Ask HN: What interesting problems are you working on?

#464

Trying to make it easier to prove your identity online. Essentially by creating an ID for use on the web. When signing up for services that require real identities (banking, insurance, etc.) the standard currently is to require a picture of a passport, a video of yourself, or copies of some paperwork. These methods are all high-friction and provide dubious security and privacy. This is already a solved problem in som…

This is an almost* solved problem, depending on how low-friction solution you consider solved. Just use X509 PKI.

Have your real world identity issuing agency (whatever that is in a specific country) become a CA, issue personal cert and store it in crypto-hardware. Smart-card interface is rarely present (generally requires specific hardware), USB requires drivers.

Heck, the key can even live inside your SIM card if you prove your identity to mobile provider, which you have to if it is a contract anyway. Works well and is easy to use. Can be an attack vector for scams, though. https://en.wikipedia.org/wiki/Mobile_signature

Re: Ask HN: What interesting problems are you working on?

#465

Solving the world's trillion-dollar energy storage crisis. (multi-trillion, actually.) https://www.terramenthq.com/ About a year ago, I started spending more time researching about climate change. I learned how important energy storage will be to enable renewable energy to displace fossil fuels. The more I read, the more fascinated I became with the idea of building underground pumped hydro energy storage. I found a…

I hope to convey this in the least volatile manner, but I must bring it up. > I learned how important energy storage will be to enable renewable energy to displace fossil fuels. The above is a reasonable statement, however, your website says the following: > We can’t quit carbon without energy storage. To stop climate change, renewables must replace fossil fuels. > Without energy storage, renewables will fail to reac…

Thanks for expressing this johnmorrison and for being very uninflammatory about it :) Here is my white paper that sites ample research. https://www.terramenthq.com/underground-pumped-hydroelectric...

If you want to send me research supporting some of your thoughts here then I'd love to see it. I do know for example that it's a very valid debate whether or not nuclear has a place in our climate fight.

I'll try to re-work the language in my materials to make sure I'm not excluding other valid viewpoints. Thanks!

Re: Ask HN: What interesting problems are you working on?

#466
Working on building a system that can be used in urban areas to help fight climate change and water treatment issues using Algae. There has been so much research on the uses of Algae and how effective it is at using CO2 to grow and now I'm just trying to think of the most effective way to launch a venture.

The hardest part has been deciding what to fight first and meeting other people who have experience working with algae. I would love to connect with anyone that wants to talk Algae!

Re: Ask HN: What interesting problems are you working on?

#467

Solving the world's trillion-dollar energy storage crisis. (multi-trillion, actually.) https://www.terramenthq.com/ About a year ago, I started spending more time researching about climate change. I learned how important energy storage will be to enable renewable energy to displace fossil fuels. The more I read, the more fascinated I became with the idea of building underground pumped hydro energy storage. I found a…

I've actually been thinking about the issue of energy storage a lot recently -- I've read a ton about how lithium-ion battery production is exploding (usually not literally), but it seems unreasonable to store enormous amounts of renewable energy in a device that itself has to be replaced after a certain number of cycles. The device used for pumped energy storage -- a tank (to simplify greatly) -- basically never nee…

Thanks! Yes, and our research agrees that the short-life of Li-ion is a problem, and it's one of the reasons why we believe our solution has so much more promise than Li-ion for grid scale storage.

The pump/turbine technology we use is the same that's been used for a hundred plus years for traditional pumped hydro dams, and the maintenance cost is very low. The life of a project is 40+ years. And in reality it can be 100 years with relatively low amount of maintenance. The San Diego County research posted on our website has good figures on this. thanks!

Re: Ask HN: What interesting problems are you working on?

#468
post #438

My current longshot is the development of dropship fulfillment solution as a service. Kind of a managed dropship network for every single dropship vendor and every single dropship retailer out there. The solution should basically take the pain of daily logistics management of the retailers back. Kind of what Amazon does for their own Dropshippers. As a retailer you get full tracking and cost transparency, as a dropsh…

Amazon.de has a dropship network?

Yeah, called direct fulfillment. Roughly 400 vendors a couple of years ago for Amazon.de alone. Should be more by now. Quite interesting, so. Not sure why Amazon never really pushed that instead of own fulfillment centers, would have reduced fixed costs by quite a bit IMHO.

Re: Ask HN: What interesting problems are you working on?

#470
post #202

Im aggregating stock chatter from the worst parts of the internet (wallstreetbets, 4chan), summarizing it and sending it out as a newsletter here: https://topstonks.com

Why is this a newsletter that you need to give your email address even to just sample the content? It would be much nicer if the website showed you the content with an option to subscribe to the newsletter or rss feed.

Hey sorry for the confusion! There is a link "read a sample" that you can click on. Ill make that more prominent.
Post reply on HN