Hacker News Reader

_Microfton McDonald's push to have AI price your Big Mac

Especially for your blood vessels, liver, pancreas, …

_Microfton 3D necroprinting: Leveraging biotic material as the nozzle for 3D printing

I had submitted that a while ago but unfortunately it didn’t catch on. Maybe you try again?

The result is very impressive and I suggest to also check out how some of the details (actuators, angle sensors) are implemented.

https://news.ycombinator.com/item?id=49602119

_Microfton The Secret Life of Circuits

Maybe it should look like someone in a Western movie blowing smoke from a pistol?

_Microfton The Secret Life of Circuits

This made me have a look and I do like it a lot.

The wide margins remind me of university coursebooks.

_Microfton A wandering black hole caught feeding on the run

Microwaves do have much larger wavelengths than visible light.

https://en.wikipedia.org/wiki/Electromagnetic_spectrum

_Microfton Show HN: What if the speed of light was 5 km/h?

Cherenkov light

_Microfton The Color of White Light

“ultraviolet”, not infrared. IR to visible light would be upconversion.

https://en.wikipedia.org/wiki/Photon_upconversion

_Microfton Brain turns listening inward during REM sleep, EEG recordings suggest

Perfectly viewable in Firefox, Edge and Safari. The problem must be on your side.

The link to the study is at the bottom of the article. It is Open Access as well.

_Microfton Wind and solar overtake fossil fuels in Germany for the first time

Source: https://www.newyorker.com/cartoon/a16995

_Microfton You Could Have Come Up with Kimi Delta Attention

Side note, before you ask: yes, bra-ket notation is called like that because of the brackets.

https://en.wikipedia.org/wiki/Bra-ket_notation

_Microfton Die Zeit Built a Searchable Database of Nazi Party Members

“Die Zeit” (literally The Time) is a German newspaper, in case you were confused by the title.

_Microfton Kindle loyalists scramble as Amazon turns page on old e-readers

“The books will stop working”, discussed 7 years ago:

https://news.ycombinator.com/item?id=20297331

_Microfton Haiku OS runs on M1 Macs now

Because they can.

_Microfton How an Australian Teen Team Is Making Radio Astronomy Affordable for Schools

Maybe you like this:

https://physicsopenlab.org/2020/10/10/a-simple-11-2-ghz-radi...

The HN discussion (2020) about this can be found there:

https://news.ycombinator.com/item?id=26078761

_Microfton The Slowest SR-71 Blackbird Fly-By (2017)

This one could be considered a classic but you might be one of today's lucky 10000 :)

_Microfton Virtual flying experience changes neural responses to seeing wings

Here are some articles on this:

https://www.sciencenews.org/article/virtual-wings-brain-chan...

https://www.vice.com/en/article/people-learned-to-fly-with-v...

_Microfton Show HN: WhatCable, a tiny menu bar app for inspecting USB-C cables

Is it not rather useful in this particular case? You will see the reported capabilities whenever you plug in a cable. Or do people rather want to diagnose and label their cables just once?

_Microfton Amateur armed with ChatGPT solves an Erdős problem

What is your idea of "creative"/"creativity" then?

_Microfton New study compares growing corn for energy to solar production

DARPA’s “Cornucopia” program has the same goal.

https://www.darpa.mil/news/2023/food-air-water-electricity

_Microfton Ultraviolet corona discharges on treetops during storms

Half of the comments are in this subthread which derailed the discussion on this submission before it even started. Here the damage is done but maybe, please, refrain from doing so elsewhere.

_Microfton Reverse Engineering ME2's USB with a Heat Gun and a Knife

I’ve considered that before but never actually got one. For soldering SMD a small hotplate was a difference like day and night already. How cheap could I get away with when buying a hot air station/gun?

_Microfton Reverse Engineering ME2's USB with a Heat Gun and a Knife

To remove SMD ICs more easily with a soldering iron, you can create a tool to help with it. Cut a lengthy piece with a curved end at the front (looks a bit like a finger) from an aluminum can and sand away the inner coating and print on the outside.

Then work the curved end between IC and PCB and start heating the contacts left and right while continuing to move the tool further in once the solder at a leg melts. The legs with solder on them will not attach to the aluminum and you have the IC off the board in no time.

For soldering the author might consider “drag soldering”, i.e. put a small blob of molten solder on the legs and keep moving the tip of the iron over the legs on one side. Keep doing that until there are no bridges left.

_Microfton Reading Input from an USB RFID Card Reader

That should be the most common behavior. Barcode readers work the same. In the past, you even plugged barcode scanners between keyboard and PC and they injected the key codes of the detected code into that.

_Microfton Show HN: I made a calculator that works over disjoint sets of intervals

Very nice, thanks for sharing! Maybe show which upper or lower values are included in the intervals? A notation I am familiar with uses outward facing brackets if the value is not included in the interval. That always applies to infinity.

Applied to the cases here:

]-∞, -1] U [0.5, +∞[

The excluded interval in between becomes ]-1, 0.5[ then.

That’s how min (and analogously max) works, right? min(A, B) = [lo(A,B), lo (hi(A), hi(B))].

Edit: idea: copy a formula from the results section to the input field if the user clicks/taps on it.

_Microfton The American consumer market is larger than the EU and China's combined

Nominally. Corrected for purchasing power, it’s only approximately 50% higher than either of them.

_Microfton DIY Soft Drinks

A easy solution might be to mix the concentrate with sparkling/carbonated water?

_Microfton Phyphox – Physical Experiments Using a Smartphone

The title was slightly editorialized for clarity.

_Microfton How the Turner twins are mythbusting modern technical apparel

Taking differences between degrees Celsius values is absolutely fine.

Ratios are undefined because the Celsius scale has no absolute zero while the Kelvin scale has.

See: https://en.wikipedia.org/wiki/Level_of_measurement

_Microfton Europe sleepwalked into yet another energy crisis

We should have kept using nuclear? That nuclear of which refinement capacities are over 40% in Russians hands? For conversion it’s even a combined 63% for Russia+China.

“Russia's Stranglehold On The World's Nuclear Power Cycle”, https://www.rferl.org/a/russia-nuclear-power-industry-graphi...

_Microfton Full Spectrum and Infrared Photography

By this measure, there is no "full spectrum" photography ever.