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_Microft

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VibePHP

github.com
5 points·by _Microft·14 дней назад·0 comments

3D Printed Train Whistles [video]

youtube.com
2 points·by _Microft·2 месяца назад·0 comments

DIY Hardware for Electron Spin Resonance (2021)

physicsopenlab.org
3 points·by _Microft·2 месяца назад·0 comments

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

theaviationgeekclub.com
4 points·by _Microft·2 месяца назад·1 comments

Virtual flying experience changes neural responses to seeing wings

cell.com
4 points·by _Microft·2 месяца назад·1 comments

Sandwich Theorem

en.wikipedia.org
2 points·by _Microft·2 месяца назад·0 comments

Ford Nucleon

en.wikipedia.org
4 points·by _Microft·2 месяца назад·2 comments

Infrasound exposure is linked to aversive responding, negative appraisal

frontiersin.org
27 points·by _Microft·2 месяца назад·2 comments

John Carlos Baez: "Learning from Nature with System Dynamics"

mathstodon.xyz
2 points·by _Microft·2 месяца назад·0 comments

Barn (Unit)

en.wikipedia.org
3 points·by _Microft·2 месяца назад·1 comments

Pharmacovigilance

en.wikipedia.org
2 points·by _Microft·2 месяца назад·0 comments

Mechanical load inhibits cancer growth in mouse and human hearts

science.org
2 points·by _Microft·3 месяца назад·0 comments

Waymo: Expecting driverless taxis to respect bike lanes "too high a bar"

road.cc
10 points·by _Microft·3 месяца назад·4 comments

Prusa Core One INDX – Toolchanger with 8 Nozzles

blog.prusa3d.com
9 points·by _Microft·3 месяца назад·1 comments

Mathematically Correct Breakfast

georgehart.com
1 points·by _Microft·3 месяца назад·0 comments

Basics of Radar Technology

radartutorial.eu
41 points·by _Microft·3 месяца назад·0 comments

DIY Soft Drinks

blinry.org
738 points·by _Microft·3 месяца назад·243 comments

Phyphox – Physical Experiments Using a Smartphone

phyphox.org
256 points·by _Microft·3 месяца назад·42 comments

South-Pointing Chariot

en.wikipedia.org
3 points·by _Microft·5 месяцев назад·0 comments

Enron Corpus

en.wikipedia.org
4 points·by _Microft·8 месяцев назад·0 comments

comments

_Microft
·2 месяца назад·discuss
“The books will stop working”, discussed 7 years ago:

https://news.ycombinator.com/item?id=20297331
_Microft
·2 месяца назад·discuss
Because they can.
_Microft
·2 месяца назад·discuss
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
_Microft
·2 месяца назад·discuss
This one could be considered a classic but you might be one of today's lucky 10000 :)
_Microft
·2 месяца назад·discuss
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...
_Microft
·2 месяца назад·discuss
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?
_Microft
·3 месяца назад·discuss
What is your idea of "creative"/"creativity" then?
_Microft
·3 месяца назад·discuss
DARPA’s “Cornucopia” program has the same goal.

https://www.darpa.mil/news/2023/food-air-water-electricity
_Microft
·3 месяца назад·discuss
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.
_Microft
·3 месяца назад·discuss
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?
_Microft
·3 месяца назад·discuss
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.
_Microft
·3 месяца назад·discuss
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.
_Microft
·3 месяца назад·discuss
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.
_Microft
·3 месяца назад·discuss
Nominally. Corrected for purchasing power, it’s only approximately 50% higher than either of them.
_Microft
·3 месяца назад·discuss
A easy solution might be to mix the concentrate with sparkling/carbonated water?
_Microft
·3 месяца назад·discuss
The title was slightly editorialized for clarity.
_Microft
·4 месяца назад·discuss
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
_Microft
·4 месяца назад·discuss
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...
_Microft
·4 месяца назад·discuss
By this measure, there is no "full spectrum" photography ever.
_Microft
·4 месяца назад·discuss
That's a website of Andrew Zonenberg if that name rings a bell.

https://news.ycombinator.com/user?id=azonenberg