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Ask HN: What's the coolest physical thing you've made?

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Re: Ask HN: What's the coolest physical thing you've made?

#341

This may or may not fit into the OP's intention but some of my favorite physical achievements are repairs that might be impressive for a random suburban dad :) 1. Two years ago our basement flooded a week after we bought the house. I ended up tearing out the now-saturated carpet and put in vinyl plank flooring. Mainly straight forward but requires planning and at some points tricky sawing. It's cool when people come…

> it was really not a big dea. I read this like a joke that the far right of his touchscreen doesn't work anymore and can't type the letter "L"

:) I appreciate that! Worse, I posted this from a desktop!

Re: Ask HN: What's the coolest physical thing you've made?

#342
post #120

I've rebuilt most of the electrical system in an RV I recently bought. It started out with a basic "shore power" system as the dominant source of electricity along with a couple lead acid batteries. I've replaced the old batteries with LiFePO4 (lithium) batteries, swapped out the AC->DC charger/converter with one that can charge lithium, extended the main AC power cable into a central electrical bay, installed a 2000…

I'm interested in learning how to do this kind of work. I ultimately plan to install it in a van or trailer, but I'm thinking of starting with some kind of portable solar system to use while camping. Do you have any recommendations for resources to learn about these types of systems?

Renogy is a popular brand for solar systems, and they have some great resources. Also lots of YouTube vids that walk through solar installation on RVs and vans. Once you know what you need (panels, charge controller, batteries, inverter), it starts to come together pretty quickly. I’d just make sure to scope out your typical watt usage so that you size the system to what you need. For me, I can run everything for a remote work setup _except_ the air conditioner and things like the microwave (I’m on a 800W system with 200ah of battery). My fridge can run on propane, otherwise that would be a non-starter for off-the-grid remote life/work.

Re: Ask HN: What's the coolest physical thing you've made?

#343
post #77

A few years ago I made a "string art" portrait for my girlfriend at the time. It's made from a continuous† 2 km long black thread, woven around a loom made from a bicycle wheel rim. I'm still very proud of how it turned out. †OK fine, it broke at a few points and I had to knot the ends together, but it's the principle that counts. https://imgur.com/gallery/ljoJeal I really wanted to make something creative for her, b…

This is SO cool! I love the python script too!

Re: Ask HN: What's the coolest physical thing you've made?

#345

Earlier quoted context omitted.

So then who owns the warehouses that have Amazon logos on them, exclusively used by Amazon with Amazon employees working inside them?

https://www.cnbc.com/amp/2022/06/13/prologis-amazon-warehous... Prologis controls roughly 1 billion square feet of warehouses and distribution centers used by companies including Amazon, Home Depot and FedEx. Probably there are others as well that rent warehouses to Anazon. Having a sign with the name of a business on a building does not mean that the business owns the building itself. Many companies rent offices for…

A building I worked in had multiple tenants. My (now former) employer leased five of the six floors, but the big sign on the building advertised a company that had half of the first floor at most. Obviously they were willing to pay more money for advertising rights.

Re: Ask HN: What's the coolest physical thing you've made?

#346
I've been working on this thing(https://entropyandsons.com/products/fr4xtal) for about 4 years and it's almost done. It's a video synthesizer that uses pixel shaders and complex analysis to make interactive art. My Instagram act (https://instagram.com/entropyandsons) has a bunch of media.

Re: Ask HN: What's the coolest physical thing you've made?

#347
I built a timber-framed 12x16 barn with a cedar shingle roof with almost no experience. Mostly I read one book and, by strange chance halfway through, an interested person (who loves timber framing) saw me working in my driveway and decided to teach me several things and aid my technique, and supervise the raising process.

Some pictures and more details: https://map.simonsarris.com/p/building-the-goose-palace

Late this year I will plant 2000 tulips and daffodils as part of a rose garden I am planning, that begins in earnest next year. I hope it will look nice enough to turn some heads.

Re: Ask HN: What's the coolest physical thing you've made?

#348
post #336

Last spring, I had my dad woodwork a large (cabinet door sized?) solid silhouette of Michigan, where I live. I then drilled holes throughout it, ran WS2811 LEDs through the holes, and coded up live temperature data to be shown as a color spectrum. It's a nice piece of wall art! https://github.com/leoherzog/michigan-temp-map

That's awesome! I might have to build one of those myself (as a fellow Michigander).

Re: Ask HN: What's the coolest physical thing you've made?

#349
post #109

Earlier quoted context omitted.

Almost old enough to send into the mines and start paying rent!

Minecraft has definitely proved that the children yearn for the mines.

For my kids, at least (ages 5-12), "clicker" games are all the rage right now, as well as repetitive mining and harvesting in Minecraft.
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