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blueintegral

Re:Car manufacturing hit by global semiconductor shortage on Friday January 08, 2021 @08:04PM (#25694068)
I'm not in the car industry, but I am in the electronics industry and I have definitely felt the chip shortage. Some of my parts just aren't available, and lead times are 3-4 months. Seems to be the result of production stopping at the beginning of the pandemic and they still haven't caught up.
Re:Design electronics like it is 70s at CERN on Friday June 12, 2020 @11:12PM (#23506430)
And that's where the term "tape out" comes from, and the term is still used to this day (although mostly just in IC design).
Re: Free Illustrations of the Natural World on Monday February 10, 2020 @09:14PM (#22295387)
Am I the only one who can smell these pages as I look at them?
Re:A 60 GHz phased array for $10 on Tuesday January 21, 2020 @08:23PM (#22113645)
The data itself isn't 60 GHz, you're just modulating it onto a 60 GHz carrier. https://en.wikipedia.org/wiki/Modulation
You can order trinitite from United Nuclear. I stuck some in an HPGe and was able to learn some interesting things: https://www.hscott.net/analyzing-trinitite-a-radioactive-pie...
Re:Darpa Plans a Major Remake of U.S. Electronics on Tuesday July 17, 2018 @09:37PM (#17554982)
This is really exciting. I've thought about building a datapath on an FPGA that uses partial reconfiguration to synthesize new hardware blocks based on the math being doing at a particular instant, and it sounds like DARPA wants to do that on steroids. Server CPUs coupled with FPGAs are already being used for a lot of interesting things and I think it makes a lot of sense to integrate together even tighter. I'm also really happy to hear that they're funding new EDA software that is actually smart. The best we have right now is some whitelist based rule checking for schematics and layout. I want full simulation, a perfect, proven parts library with symbols, footprints, 3D models, non-ideal SPICE models, and a thermal model for every part in existence, smart rule checking that looks not only for things like unconnected nets, but logic level mismatches and clock edges that are too fast.

Little pieces of this exist already, but in my opinion, software for creating hardware is way behind software for creating software.

Correction: their last day is tomorrow, April 8th.
Re:Let's Learn About Waveforms on Wednesday February 14, 2018 @06:40PM (#16380671)
While this page is mostly about sound waves, here's a great talk using similar tools to explain RF: http://www.youtube.com/watch?v=DUGr_Z04SKs&t=12m31s

Here's the interactive slides to play with: http://visual-dsp.switchb.org/

There's no evidence that nonionizing radiation like microwaves can cause cancer. I think that was probably more likely due to the fact that everyone back then smoked about 4 packs a day.
Re:The Boring Company [video] on Friday April 28, 2017 @05:41PM (#14223298)
Now what if we add an Uber-like component to this and let people share/carpool together to reduce the number of cars above and below ground? Instead of tires that wear out, we could use steel on rails! Aaaand, we just re-invented the subway.
Re:Ask HN: What do you want to learn in 2017? on Sunday December 25, 2016 @10:41PM (#13256803)
Conversational Navajo. It's such an interesting language with an amazing history. I don't know any other languages right now besides English and a bit of Spanish, and I didn't grow up around any Navajo people. Despite a relatively small speaking population, there seems to be enough information online to learn at least enough to hold simple conversations.
Re:​How to Send an Email in 1984 on Monday October 03, 2016 @03:45PM (#12630678)
I spent a little time trying to extract the program from the audio at the end of this video, but it turns out someone had already done it:

https://www.reddit.com/r/ReverseEngineering/comments/4boa6p/...

Re:NSA's Puzzle Periodical on Monday August 22, 2016 @01:37AM (#12334327)
"If you think you know the answer, write it on the back of your classified one time pad key and send it to: NSA, Box 35 Fort Meade (our fair city) Maryland".
Re:Magnetic core memory reborn (2011) on Tuesday July 19, 2016 @12:46PM (#12122830)
I always thought it would be cool to make a necklace or something with ferrite cores after they'd been "written" to, so you could keep a secret message with you (albeit a short one) without suspicion.
Re:SpaceX: “First stage landing confirmed at LZ-1” on Monday July 18, 2016 @01:36AM (#12113383)
They've only landed a handful now, but they're already making it look so easy.
Re:Apollo 11 Guidance Computer source code on Thursday July 07, 2016 @10:56AM (#12049696)
Someone opened an issue: "Check continuity on O2 cryogenic tanks before allowing stir"

https://github.com/chrislgarry/Apollo-11/issues/3

I thought this would just be an application of Benford's law, but they note in the beginning that using Benford's law doesn't work for elections (citing this paper: http://www.vote.caltech.edu/sites/default/files/benford_pdf_...)

Does anyone know why Benford's law doesn't work here but does work for other made up numbers in applications like accounting?

Re:The Hunt for the Death Valley Germans on Saturday July 02, 2016 @01:19AM (#12021469)
This guy also wrote about his hunt for the crash site of a predecessor of the SR-71. I enjoyed reading it: http://www.otherhand.org/home-page/area-51-and-other-strange...
Whoops, typo.

Ask HN: Who is this programmer making $200M per year?

I recently discovered h1bdata.info. Super cool. I was digging around looking at consulting companies that have a huge number of H1Bs and found an employee at Wipro who apparently makes $200M a year. He's listed as a "programmer analyst". The CEO of Wipro makes about $1.5M a year. What's going on here? You can see Wipro's H1B applications here and sort by salary:...

( Read More... | 6 comments | 10 points | on HN )

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