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FPGAhacker

2,646 karma · joined January 14, 2018

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FPGAhacker··on MS Flight Simulator 2020 vs. Real life
I haven't been flying for about 1.5 years, but last I saw, there were just guidelines from the FAA.

The problem for me has been city ordinance. My city is urban sprawl and it's illegal in my city to fly in parks, or over people. So that rules out pretty much everything interesting.

If you are into the whole racing quadcopters thing, there are options, but FPV exploration was what I liked.

FPGAhacker··on Racket is 25
Probably doesn’t fit what you mean by mainstream, but even so: https://github.com/clojure/core.logic

> A logic programming library for Clojure & ClojureScript. core.logic offers Prolog-like relational programming, constraint logic programming, and nominal logic programming for Clojure.

FPGAhacker··on 4D Toys: how objects bounce and roll in 4D – paper accepted to SIGGRAPH 2020
How different would a 2d square look projected onto a 1d view, vs a circle?
FPGAhacker··on Install Ubuntu 20.04 LTS on MacBookPro14,1
Any reason you aren't looking at ryzen based laptops?
FPGAhacker··on What does the 'rc' in `.bashrc`, etc. mean?
My first introduction to .___rc files was with irix back in college. Somehow I got it into my head that it stood for Resource Chest. I probably just made it up.
FPGAhacker··on Working from home on the //c+
That is absolutely fantastic!
FPGAhacker··on Launch HN: Zynq (YC W20) – Book meetings instantly with your team
My first thought was Xilinx. I'll live.
FPGAhacker··on PC-XT Emulator on a ESP8266 (2018)
I don’t know about ISA, but pci (not e) can easily be under 1us. It would be an odd design to have even that much latency.

As measured on the bus.

FPGAhacker··on Covid-19 twice as contagious as previously thought – CDC study
Taking your post at face value, I would say we know it’s twice as infectious due to more testing and/or better data. So we know that more people have been infected.

We didn’t discover a bunch of dead people that were infected. So the denominator increased relative to the numerator.

Not stating this as fact.

FPGAhacker··on Google Wave’s failure is a lesson for modern real-time collaboration tools
Yeah that hit the nail on the head for me.

You’re app needs work if people’s reaction to trying it out is, “ok... now what?”

FPGAhacker··on Mosh
I use mosh in tandem with tmux.

About say 10% of my reconnects would fail with mosh, and the session would be orphaned. But combining with tmux, even if I lost the mosh session I could make a new one and reattach to tmux.

My use case was iPad/iPhone remote working. (Usually while visiting in-laws or on a plane) Very intermittent connectivity.

I used the open source blink terminal for iOS (which I bought because it’s great). It can use mosh.

FPGAhacker··on Why Amazon got out of the Apple App Store tax and other developers won’t
Doesn’t seem any different than peering agreements between network providers.
FPGAhacker··on What's a virus, anyway? The bare-bones basics
https://archive.org/details/MolecularBiologyOfTheCell5th/mod...
FPGAhacker··on What Everyone’s Getting Wrong About the Toilet Paper Shortage
This does seem like a contributing factor, but the TP run started before the mass shift to work from home / self quarantine.
FPGAhacker··on Trolls break into meetings on Zoom
Posting something like that on Twitter is like a dare.
FPGAhacker··on Dutch museum says van Gogh painting stolen in overnight raid
Stolen art opens up the market for forgeries.
FPGAhacker··on AWS Ground Station
More likely Kuiper.
FPGAhacker··on Army Corps of Engineers to Build Temporary Hospitals in NY
100 million Americans have been infected with covid?

50 million Americans getting the flu in any given year is pretty typical, although flu season is a couple months longer than a quarter.

FPGAhacker··on Army Corps of Engineers to Build Temporary Hospitals in NY
I’m pretty doubtful that this is much worse than the flu. But I am self quarantined, stocked up on food etc. my level of doubt is not nearly strong enough to counter the severity of consequences if I am wrong.

My wife has asthma, and my parents are elderly. I’m middle aged. I’m much more concerned about hurting other people.

That said, flu statistics aren’t great. I’m pretty sure I’ve had the flu, due to severity of illness. But I’ve never been tested for it. I don’t know anyone who has. When people die of pneumonia etc they Aren’t automatically tested for flu.

FPGAhacker··on Army Corps of Engineers to Build Temporary Hospitals in NY
How do you know the rate of spread if you can’t test?
FPGAhacker··on The untold origin story of eBay that I lived (2018)
I am unable to parse that sentence.
FPGAhacker··on MIT moves all classes online for the rest of the semester
burnt popcorn used to be a way to cover the smell of pot.
FPGAhacker··on Do whatever you can't stop thinking about
My problem is I don’t know a way. So I go searching for resources to learn from. Except there are dozens of ways to do a given thing. And all are really just partial, incomplete solutions, in different ways. Some are outdated, but how can I tell when I’m not a domain expert. And I don’t want to be an expert on every single domain I have to touch to build whatever thing I am working on.

It’s a frustrating world.

FPGAhacker··on Coronavirus Mortality Rate
Agreed. It seems to me there are, in the main, two problems which include many other problems relating to the general problem.
FPGAhacker··on Sun's surface seen in new detail
It says each cell is the size of France. The resolution of the scope is 30km.
FPGAhacker··on How Much Does a Mile of Road Cost?
>Theoretically, where the car merges doesn't have any bearing on this occurring or not. It shouldn't be any different at the beginning of the lane or the end.

It’s a scheduling problem where people that join the lane early are starved by the people joining late.

In cases where there is roughly an equal exchange of vehicles between two lanes it doesn’t matter much, and maybe that’s the norm where you are.

Where I am, congestion is more localized to chokepoints where too many people need to use an exit or on ramp. In this case if time matters it’s usually better to be aggressive and merge at the last minute rather than be passive and get in line early.

People may think you are a jerk. For people where it’s important not to be thought of badly, they get in line first. For people who don’t care (or occasionally for other reasons) they skip the line and merge late.

FPGAhacker··on The Trapper Keeper (2017)
I remember having a trapper keeper. I don't think I noticed that the logo font seems to be the same as for the apple //e though.
FPGAhacker··on Frank Abagnale on the death of the con artist and the rise of cybercrime
See https://science.howstuffworks.com/life/inside-the-mind/human...
FPGAhacker··on AMD’s 64-Core Threadripper 3990X, only $3990 Coming February 7th
You could host your own Eve Online universe in your bedroom.
FPGAhacker··on Clojure: `every-pred` and `some-fn`
> Clojure has a bunch of functions with every and some in their names, which can be a bit confusing. In some? and some-> it refers to a value being something other than nil, whereas in some and some-fn it means “the first one that applies”

I haven’t used any of the “some” functions much, but it seems to me you could read this was “the first one that is not nil” which would be consistent.

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