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Ask HN: What are you working on? (July 2025)

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Re: Ask HN: What are you working on? (July 2025)

#591

Post by yu3zhou4 »

tombert wrote: post #208
hmottestad wrote: post #199

Earlier quoted context omitted.

Good for you. Cross my fingers that you'll land a good job soon. Or create your own job.

I have a few prospects lined up. I'm actually planning on doing a second masters from a slightly more prestigious university with a more theory-heavy degree [1], but it's nice to at least have an official graduate degree now. Hopefully it helps me find work a bit quicker, and if nothing else it's just kind of fun to pile up degrees. [1] https://www.open.ac.uk/postgraduate/qualifications/f04

I was recently looking for a master's degree in math that is:

- 100% remote

- 100% self-paced

- fairly cheap

and it looks like Open University is the best option right now? Did you find any better option?

Re: Ask HN: What are you working on? (July 2025)

#592

Post by kaspermarstal »

mceoin wrote: post #511
kaspermarstal wrote: post #83

I'm continuing the work on Cellm, an Excel extension that let's you call LLMs in cell formulas like =PROMPT(A1, "Rate the sentiment of the customer feedback as positive, neutral, or negative"), and then drag the formula down to apply the same prompt to thousands of rows. I built it after my girlfriend had to manually classify 7,500 research papers. Cellm automates that kind of repetitive work. Since we added MCP and…

Hey Kasper - would love to grab a coffee sometime (on the Internet : )

Hey, sure! Send me an email at kasper at getcellm dot com and let’s find a time

Re: Ask HN: What are you working on? (July 2025)

#595

Post by alextousss »

atlasunshrugged wrote: post #106
alextousss wrote: post #86

Earlier quoted context omitted.

Glad to hear we could be of help! Some of our tech could be used for defense, but traditional defense companies and ukrainian startups already do low-cost shahed interceptors.

My impression is the solutions are still somewhat lacking/necessary -- I know Frankenburg, Eric Schmidt's stealth startup, and surely the primes are all working on it but given how many shaheds are still getting through (plus all the drone action at the frontline) I imagine there's still a market for low-cost; especially if they're largely autonomous

It might be, but it’s a crowded market where politics and connections are worth more than technical expertise. So, we’re okay to stay out of it

Re: Ask HN: What are you working on? (July 2025)

#596

Post by alextousss »

Simon_O_Rourke wrote: post #476
alextousss wrote: post #24

My roommate and I are still working on Tornyol, our mosquito killing drone! It uses ultrasonic sonar to detect mosquitoes, and missile control theory to ram into mosquitoes and grind them in its propellers. Our target platform is a 40 grams tinywhoop so it’s safe to fly everywhere and makes almost no noise :). A Roomba for mosquitoes! The main plus compared to traditional systems is that a drone can cover an enormous…

There's an awful lot of complex navigation, signal processing and trigonometry required here, good luck. What's the fidelity of the sonar in detection of flying mosquitoes?

What do you mean by fidelity? We’re still unsure about the tails in terms of detection probability/false detection rate

Re: Ask HN: What are you working on? (July 2025)

#598

Post by alextousss »

fancyswimtime wrote: post #296
alextousss wrote: post #24

My roommate and I are still working on Tornyol, our mosquito killing drone! It uses ultrasonic sonar to detect mosquitoes, and missile control theory to ram into mosquitoes and grind them in its propellers. Our target platform is a 40 grams tinywhoop so it’s safe to fly everywhere and makes almost no noise :). A Roomba for mosquitoes! The main plus compared to traditional systems is that a drone can cover an enormous…

please make something for miggie's - there are currently no specialised products for this baddie

We could do something about it. Any flying insect is only a change of parameters for us.

Re: Ask HN: What are you working on? (July 2025)

#599

Post by alextousss »

laurent_du wrote: post #568
taneq wrote: post #487

Earlier quoted context omitted.

I seem to recall reading that mosquitos mainly seek out carbon dioxide...

I read this as well, and tried holding my breath (I can hold it for several minutes) while walking in the forest, and the mosquitoes still bit me.

Mosquitoes use different cues (olfactory, CO2 and infrared emissions/heat) depending on the distance to target.

Re: Ask HN: What are you working on? (July 2025)

#600

Post by alextousss »

yreg wrote: post #506
alextousss wrote: post #24

My roommate and I are still working on Tornyol, our mosquito killing drone! It uses ultrasonic sonar to detect mosquitoes, and missile control theory to ram into mosquitoes and grind them in its propellers. Our target platform is a 40 grams tinywhoop so it’s safe to fly everywhere and makes almost no noise :). A Roomba for mosquitoes! The main plus compared to traditional systems is that a drone can cover an enormous…

Super interesting project! What stage are you at currently? What are the main open challenges that you are facing?

Everything works in simulation, and the detection works in the real world! We’re working on miniaturizing the electronics to embed it in a real drone.
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