cshimmin

24 ms·

241.
by cshimmin 10y ago
Nobody has said the word "slack" yet... but am I interpreting this correctly? An open source clone of slack? If so, it's very interesting. I wonder if they are taking any steps towards solving the "fragmentation" is
242.
by cshimmin 10y ago
Not much you can do to shield these events, it's mostly highly-penetrating gamma rays and muons. Maybe spend a lot of time a few dozen meters underground or the the basement of high-rise buildings. If it helps, you basically have to be
243.
by cshimmin 10y ago
People have approached us with this idea! I don't think we have much/any access at the API-level to radio signals. However are talking with another group which is looking to build an inexpensive RF array about possibly integrating
244.
by cshimmin 10y ago
That's a really cool idea, I don't think we've even considered this before. If you have information about how to get this kind of thing going, please get in touch! (My email is my hn username at cern.ch)
245.
by cshimmin 10y ago
We read about them! Very cool project, especially from high-school students. A lot of people got onto this idea about the same time. See also CellRAD, which is an app that is supposed to act as a dosimiter to detect when you are near radioa
246.
by cshimmin 10y ago
Actually the active area of the CMOS sensor is really quite small. Like ~0.1cm^2. It is the main reason we need so darn many phones (and, as you correctly point out, an appropriate density of phones) in order to have sensitivity. The reason
247.
by cshimmin 10y ago
We're here! Unfortunately I'm terrible at social media and especially blogging, so from the outside we must seem pretty dead. See my response to GP, but basically we've pumped the brakes a bit after a small initial beta roll-
248.
by cshimmin 10y ago
Unfortunately not open sourced (yet). The main reason is because we're physicists, not web security experts (although I do have some background in this). I was afraid that if we open source the code and make the protocol way too obviou
249.
by cshimmin 10y ago
We've invited a small number of beta testers for the android platform, mostly to test that our website (which functions as our DAQ) is working and to get a baseline dataset to characterize the kind of challenges we'll have in proc
250.
by cshimmin 10y ago
I'm one of the leads on this project! We've been flying under the radar for a while now, since everyone working on this has a "day job" (mostly ATLAS/CMS physicists), and we have essentially no funding. But we are m
251.
by cshimmin 10y ago
"... getting friends into the same app can be challenging... so we made a new app called Spaces..." Obligatory xkcd reference... sigh. https://xkcd.com/927/
252.
by cshimmin 10y ago
To the author: scientific notation (with only 2-3 digits of precision) would make most of this much more readable. Also avg and std deviation are usually more informative than avg + max. Or better yet just make a histogram (probably with lo
253.
by cshimmin 10y ago
One rad hard environment is detectors at particle accelerators/colliders. There are at least two problems: 1) You'd need a lot of lead to totally shield the equipment, like meters thick. Of course partial shielding reduces the r
254.
by cshimmin 11y ago
Is this related to ycombinator? If not, the page styling is a blatant rip-off of their branding. I feel like someone's trying to trick me into thinking this is something that it's not, which leaves a bad taste in my mouth.
255.
by cshimmin 11y ago
If we find new particles and also come up with a theory that extends the SM to describe them, that new theory _becomes_ the standard model. It's a moving target that basically represents the best picture we have to account for everythi
256.
by cshimmin 11y ago
That's not really the case. The standard model would need to be extended, sure (as the 750 GeV particle isn't predicted by the current SM). But there's no fundamental reason this can't be done; in fact in the weeks follo
257.
by cshimmin 11y ago
They briefly touched on the ability to trigger experiments. You can pretty easily do zero-suppression by simply looking at users who already regularly "like" tweets, and more generally by crafting a clever enough trigger you can m
258.
by cshimmin 11y ago
Those javascript animations had my CPU running at 100% while I was reading the article. I'm not sure I like this new web... can't we just go back to GIFs for simple stuff like that?
259.
by cshimmin 11y ago
What is a "150_____ mile radius"? What goes in the blank? "Nautical" vs. "imperial roman"?
260.
by cshimmin 11y ago
Psh, Jan Hendrik Schön showed in 2001 that carbon is superconducting at high temperatures. Just kidding; he was a fraud, but it's a fascinating story: https://en.wikipedia.org/wiki/Schön_scandal
261.
by cshimmin 11y ago
That just their I/O bandwidth. There is computing overhead in actually doing the sort. Also google was using redundant persistence.
262.
by cshimmin 11y ago
> On Thursday, experimenters will report the first detection of a phenomenon that has been long predicted So... this is news before news? I.e. rumor. LIGO is not scheduled to announce results for another 3.5 hrs.
263.
by cshimmin 11y ago
This is perhaps a general question about 3rd-party auth, but how am I supposed to trust an app like this when I click "log in with google/github/etc"? I'm simply shown a new pane within the same application that cou
264.
by cshimmin 11y ago
Does someone have a link to a concise technical explanation of what this is about? I can't handle the vague long-form writing about some guy's startup and 2-year-old on my morning pass through the news. I'm reminded of the cu
265.
by cshimmin 11y ago
> has anyone done an estimate of the global significance taking into account the fact that CMS and ATLAS both saw the excess at the same place (~740 GeV)? Not yet, and it's actually a bit tricky to think about how this should be int
266.
by cshimmin 11y ago
> While exciting, there are countless examples in history of such discoveries disappearing as more data is collected. As someone who works on ATLAS and has been watching this result develop over the last several weeks (without knowing wh
267.
by cshimmin 11y ago
That's pretty much exactly what theorists are trying to do. For example, we used to think that electricity and magnetism were different forces and subject to different equations/rules. Then we united them into a theory of electrom
268.
by cshimmin 11y ago
Null hypothesis: There is so such thing as toast. Experiment: I had toast for breakfast. Null hypothesis rejected.
269.
by cshimmin 11y ago
Uh... the NYT is a news outlet. They reported news on the fact that we had a conference, and summarized the contents of the conference (we see possible hints of a new particle). It's not like we published a paper in a scientific journa
270.
by cshimmin 11y ago
Those are jobs for the CERN facility alone (which also probably includes services like HR, translation, janitorial, etc). But thousands more work essentially full time as "CERN users". These scientists and engineers are typically

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