Alternatives
Products that do what I'm 66 and created a negative-pressure dental clinic to combat Covid19 does
Hello everyone, My son loves Hacker News, so I am using his account. I love innovation and technology. With the restrictions due to Coronavirus from practicing in my clinic. I created a system that replaces the air in my office in 20 seconds. Those vacuums are also filled with UV-rods inside to kill any viruses. The air is release below the office in a 2-3 foot basement, which is also filled with UV rods. https://youtu.be/UfYt1w156QA https://youtu.be/UpO8WXOlgcQ (side-by-side) Given how much my son enjoys Hacker News I thought you would all enjoy it. Here are…
- 1TC
Looking to get some feedback from the Hacker News community. I wrote the book with a focus on penetration testers and red teamers, but there are great examples for network admins, developers, and blue team defenders as well. You can pick up a copy for free here through May 19, 2019: https://gumroad.com/l/the_cyber_plumbers_handbook/hackernews... Please note, because it's hosted on Gumroad, it does require an email. If you don't want to give out your actual email, check out an anonymous email service. I give it away to students for free, so if you know of one that…
2019
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- 4FH
Hi HN! I’ve been lurking for a while, but out of fear of being steamrolled by HN readers or maybe just natural introversion, I’ve always been too scared to post or comment. Which is why 1. this is my first real Hacker News submission 2. my friend Michael and I built "Fake" Hacker News, a place to post and see what AI-generated HN comments might say. Here’s a video of me using fakeHN to test this very submission: https://www.loom.com/share/4b9f4f9d7c77489a86baeb92ec55a1ed?... And an example of one of our generated posts:…
2023 · fakehn.com
- 5IM
2020 · doctormasky.com
- 6IB
Hi HN, This is my attempt to fix groggy mornings by lowering my bedroom CO2 from 1700 ppm to ~900 ppm. I designed a simple, 3D-printed fan duct that directs air under the door to improve air circulation. A note on the design process: I used CadQuery, a Python library for creating parametric 3D models. I didn't know tools like this existed and highly recommend it if you can program; it turned out to be more convenient than manually iterating on prototypes in a GUI. The project is open source and the post explains the full build. Happy to answer any questions.
2025 · lepekhin.com
- 7MT
Hello HN, Almost 15 years into being a (rather quiet) user of HN, I am thrilled to write my first Show HN post! Early in the pandemic, we looked to devise a system that would drastically reduce the risk of spreading Covid-19 when people gathered in a room. The system would need to disinfect the air rapidly to keep the concentration of virions in the space low enough so the risk of cross infection would be drastically cut [1]. It became clear that an effective system would need to draw air away from the breathing space so that the exhaled air from an infected individual would not impinge upon…
2022
- 8NP
I created a pet project to see if it is of use and interesting to people. The idea is on-demand real-time chat rooms for trending topics and for personal use. You can go to the main page at www.urshoutbox.com to create your own room then share it across your social networks/email, etc. I created a hacker news specific "shoutbox" at http://www.urshoutbox.com/bLmYAL/hacker-news . If nobody is in there, please be patient and (I hope) people will join soon to start talking. The idea is to have trending topics on facebook/twitter/etc and have chat rooms to get…
2014 · urshoutbox.com
- 9IB
TL;DR: During the coronavirus lockdowns I built a new kind of code editor - a notebook-like development environment inspired by the awesome teachings of Bret Victor. Check it out: https://djit.su Quick backstory: I've always wanted to create a different kind of code editor that encompasses several aspects of what I consider programming. I think it's started somewhere around the time Bret Victor had his famous talk - it blew my mind, seeing how he develops the game in real-time modifying variable and functions as he goes. About three months ago, as the corona lockdowns hit, the…
2020
- 10MR
My dad makes the questions, I made the site. I think the genre and the level of difficulty is suited for HN. Hope you enjoy. (I promise no AI-generated questions, they are all hand made!).
Apr 2026 · kviss.eu
- 11DR
This isn't your fancy new javascript gizmo, but funny guy with a funny story to promote his toddler app. I'm sure you'll agree. Humor me. 1st let me tell you how I came upon hacker news, and why I read it everyday.<p>I'm not a programmer, and only half-decent designer. I'm much more of a 'project manager' type of person. I wrote a blog post 2 years ago on how to do a fancy trick with css3 with box shadows. It was clever, and has been expanded and implemented all over the web. One day (while sitting in church) my phone kept buzzing every couple of seconds with comments on that blog…
2012
- 12HN
I put this together since I find myself switching away from the terminal to see if anything new popped up in HN. There might be similar ones out there, didn't bother looking. It was a quick experiment, which might end up with a few more features.
2011 · github.com
- 13MS
A little over a year ago I gave away over 4,600 copies of my intro to SSH tunneling book, The Cyber Plumber's Handbook, for free over a 48 hour period to the awesome folks here on Hacker News (https://news.ycombinator.com/item?id=19946941). Since then, I've been getting a lot of feedback about creating an interactive lab where SSH tunneling and port redirection techniques can be practiced in real scenarios. With a bit more time during the quarantine, I finally found the time to launch the lab portion. For the HN family, I'm offering the book and 2 weeks of lab time for 50% off…
2020
- 14MF
This is my first-ever e-book, www.hackingobamacare.co I was lurking on HN for a while reading comments and suggestions on how to write one. Thank you to everyone and their deep knowledge on what does and doesn't work. I wrote hacking obamacare this because I kept seeing lots of my friends, family and loved ones struggling to figure out how to make the health care system work for them. I've been fortunate given that I've been working in the industry for nearly a decade and know where to look and who to talk to if I'm unsure about something. This e-book is by no means a comprehensive review of…
2013
- 15IB
2020 · visalist.io
- 16HN
We're still in private beta but would love to give more invites and get feedback.
2011
- 17CL
Hi HN! Disclaimer: A blog post[0] on this topic ended up on HN's front page recently (which had a link to GlacierMD) but I'd already written this whole "Show HN" spiel so I figured I'd submit it anyway. Hopefully this doesn't come across as too spammy! (The previous post was really more about the problem, not my proposed solution.) Anyway, thanks for checking out GlacierMD—a consumer health tool I've been hacking on for the last few months. I chose long COVID as the first condition because (sadly) lots of people have it[1] and the research is changing rapidly[2]. Unlike other health…
2022 · glaciermd.com
- 18HN
2020 · hacknow.calhacks.io
- 19IM
2020 · justwearit.fyi
- 20TA
2020 · techagainstcoronavirus.com
- 21IB
2020 · qrmenucreator.com
- 22SA
I had the idea to create a dedicated web page containing basic, easy-to-understand digital hygiene advice. So if a friend or relative asks you for advice on securing their digital lives, you can simply give them a link and hopefully they'll share it with their friends too. Hosting is on GitHub pages; just a single, semantic, accessible HTML file. I just made this today, so contributions are welcome, especially right now. I am not a security researcher, so if anyone finds an issue with what I've written in this first draft, or thinks some other point deserves mentioning, please tell me either…
2020
- 23OC
Hi Hacker News! My Co Co-op Matt and I are on a work term and were given the task of building a webapp that could make $20 in four weeks as our onboarding challenge. We're in the final stretch here and would sure appreciate HN's thoughts (we realize we kind of did this backwards, building something first before talking to people who might use it, but hey! We're leaning.). So basically, we tried to apply game dynamics to retaining visitors to websites by offering a reward (ie. discount coupon / premium content, etc.) for meeting various 'objectives' (ie. pages to visit). We call it ScavSite…
2011
- 24RW
Hey Hackernews! My names Olly (a Designer from the UK). I’ve been a long time lurker on Hackernews but now I finally have something to share with the community. Along with my friend Oliver (Developer, Sweden/Japan) we have been working on Remotewise.io. It’s a new resource and learning platform dedicated to remote work. We’ve both been working remotely for most of our careers. Over this time remote work has been gaining huge momentum as a viable and desirable way to work and we believe it’s the future. We’ve been working on this during our evenings and weekends in between our full-time…
2019
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