jamesshuang

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I don't make $57,000 a day and I still pay 15% in taxes by rbevansin firstworldproblems

[–]jamesshuang 0 points1 point ago

If I could invest 100% of my 50k a year and get the 15% tax, I would. As it turns out, I do need to eat sometimes. And a roof when it starts raining is pretty nice. Even if I were really frugal living in the San Francisco area, I'd need to spend a minimum of 50% of my salary on basic necessities. Why am I being penalized for just existing?

My second day riding. A pic from today. by throbin-hoodin bicycling

[–]jamesshuang 2 points3 points ago

I'd do a little more than grease. Last time I bought a Walmart bike, the lock nuts were... very inadequate. The bearing cones unscrewed themselves 20 miles into a ride and the bearings were scattered all over the road. I'd definitely check all the bearings on the bike, make sure it's reasonably put together.

Bike aside, that's some beautiful scenery! Always great to see people out on the road

Introducing The MakerBot Replicator™ by TheAlphaNerdin DIY

[–]jamesshuang 23 points24 points ago

Given the name, i was hoping it was a MakerBot that could make itself from scratch...

Searching graduate schools for optics - Suggestions? by gennywitha_Gin Physics

[–]jamesshuang 0 points1 point ago

That's not true, Austin Roorda practically invented the use of adaptive optics in imaging the retina.

If you're interested, you should shoot him an email about the vision science program at Berkeley. aroorda@berkeley.edu

Why I Won’t Turn Off My Gadgets on Planes by Alivesin gadgets

[–]jamesshuang 9 points10 points ago

The reason why you get headset interference is because GSM is a TDMA standard. The time slices you get allotted occur around 217 Hz. You're literally hearing the radio turn on and off when you get that buzz. The actual control systems of the aircraft don't operate on, or near that frequency. Only the audio amplification systems get slammed by that signal.

I admit that having 300 passengers, many possibly with broken devices, all transmitting at different frequencies and their harmonics, may be detrimental. I wouldn't have much faith in flying if I didn't know that planes are probably insulted to the nth degree, and I'd probably have a better chance of being smote by an asteroid than crashing due to EMI :)

I think most Linux users have used Compiz at some point, well the man who maintains has written an apology letter. It would be nice if many of us left him a kind message this Christmas, or even showed some support in other ways. by jasonhaleyin linux

[–]jamesshuang 21 points22 points ago

Hey, I just wanted to thank you for your work on compiz. Many of the tools in compiz are important not just for desktop accessibility, but for science research and broader implications as well. I'm currently using compiz's clone output module to run a stereoscopic display in a neuroscience experiment, and my life would be FAR harder if I had to run between rooms just to see what was on the other screen!

I'm definitely with binlargin though -- you should try to attract new devs, or at least make it easier for people to get started on it. You actually messaged me on IRC a few weeks ago about a plugin that I wanted to develop, but unfortunately I decided I don't have the time to do so. I know it's what every developer hates to hear, but a bit more documentation probably would have encouraged me to continue :)

Good luck with the project, and I look forward to your successes!

My candy cane became too dangerous to eat, so I had to throw it out by jamesshuangin firstworldproblems

[–]jamesshuang[S] 0 points1 point ago

Also, wtf do you do with the stupid bend??

As a Minnesotan, this is what I think when people in Los Angeles bitch about 50 degree weather. by Sirwootalotin gameofthrones

[–]jamesshuang 5 points6 points ago

Here's a slightly different perspective. Imagine being in 45 degree weather, in uninsulated houses, with inadequate heating, where you don't own warm jackets. I've lived in "cold" places before as well as California, and I've never been as cold for as long as I have in CA. In places like Minnesota, you're really only outside for a few minutes at a time, completely bundled up before you step inside your warmly heated house.

How much force could 1 muscle cell contracting theoretically apply? by Surrender_monkey21in askscience

[–]jamesshuang -1 points0 points ago

I remember back in physics lab, where I was given a figure of 80lbs / cm2 (cross sectional area). I can't find a citation for that right now...

My physics professor showed me this today. by libertybrewcityin Physics

[–]jamesshuang 3 points4 points ago

Wait, at what density does plutonium reach criticality? Can you even get 1 lb of plutonium in one place without a criticality event?

How do you titilate an ocelot? by marakithin Jokes

China Is Quietly Unraveling as the World Frets Over Europe by StateOfThoughtin economy

[–]jamesshuang 2 points3 points ago

On the other hand, what's the alternative? If China says tomorrow, "OK world, we're unpegged, trade the yuan and whatever price you like", what will happen? As far as I've heard, the entire manufacturing sector in China would instantly grind to a halt as all Chinese-made products triple in effective price. I can't imagine that being good for consumers around the whole world...

Slight kitchen mishap. by streeter5000in pics

[–]jamesshuang 52 points53 points ago

NOOOOO! My manwich!

Holy mother of fuck! My mind has never been more properly blown. by theolcfin technology

[–]jamesshuang 2 points3 points ago

Well, House used EEG and immediately showed the results -- that's still pretty unrealistic. EEG signals aren't nearly as spectrally dense (in the eigenvalue sense) as MRI signals. They are faster though! We hope to one day do this kind of decoding with something as fast as EEG, but that might still be far away...

Holy mother of fuck! My mind has never been more properly blown. by theolcfin technology

[–]jamesshuang 1 point2 points ago

There's a lot more than 2 bits in those images -- this video only contains 30 seconds of movie, so you only get about 10 different clips total. If you asked this model to pick the viewed stimulus out of say... 1 million possible stimuli, it will be accurate above 90% of the time. As for timing, yeah, that's more problematic; MRI gives you a maximum refresh time of 1-2s.

Real time control of a cursor by the brain (specifically in MRI) is a WIP. Probably doable, but expect ~6-10 s lag!

I put 7 extra horns in my car (run by 2 switches). Now if I'm stuck behind someone, I can 'emulate' 3 or 4 different honking cars. by Chairboyin DIY

[–]jamesshuang 3 points4 points ago

I think your reference might have been lost on everyone, but upvote for a good chuckle :)

The greatest success a university student can hope for by jesterofthecourtin fffffffuuuuuuuuuuuu

[–]jamesshuang 2 points3 points ago

I'm assuming the "equation" you typed was a random one? Because it's perilously close to a regular expression...

If all the DNA in my body vanished right now, how long would I take to die? What would kill me? by cdcoxin askscience

[–]jamesshuang 2 points3 points ago

Well, as a very rough idea, amatoxins inhibit all mRNA production. Considering the complete elimination of all DNA would halt mRNA production, I'd assume that the magical disappearance of DNA would probably resemble massive systemic amatoxin poisoning. In other words, pain, coma, death in under 3 days :-p

My nightstand is too small for all my electronics... by jamesshuangin firstworldproblems

[–]jamesshuang[S] 1 point2 points ago

Ok ok, so the macbook air isn't normally there, but I swear! I have this problem regularly!

Scene from Rosendale, NY. A friend took this shot and says roads are closed both ways. by Hokubokuin Irene

[–]jamesshuang 0 points1 point ago

Erm... You basically took a picture of my gf's house (that mailbox on the left is her mom's). We both live in California now. She's staggered that there's anyone from Rosendale at all on reddit!

Mesquitoe Lake - Sequoia National Park by Ehype36in Outdoors

[–]jamesshuang 0 points1 point ago

Wow, you survived four days? Last time I was there, I could see that they named the damned place literally....

What is the fastest way to do fast on-screen pixel-by-pixel image manipulation? by ReallyGoodAdvicein Python

[–]jamesshuang 3 points4 points ago

You should probably phrase your problem in terms of vectorized math, then output the images via pygame. Straight up Python won't do pixel-by-pixel manipulations very quickly, but if you can think of it as a convolution, it can be very fast.

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