jwuphysics

10 ms·

61.
by jwuphysics 5y ago
My best guess is that those are near very bright foreground stars, which cause artifacts in the corresponding imaging survey. DESI Legacy Imaging Surveys is used to pre-select targets for spectroscopic observations. If you go to legacysurve
62.
by jwuphysics 5y ago
I also want to say that I'm not necessarily arguing against MOND here. I really like the work done by Stacy McGaugh et al. But from a more cosmological point of view, I see a lot of support for CDM. (And more than just TV cosmologists
63.
by jwuphysics 5y ago
Maybe I'm just an "academic in charge" but I don't understand how MOND being able to account for galaxy rotation curves means that dark matter is not real. There is missing matter in galaxy clusters. Matter is missing if
64.
Math 2121: Linear Algebra with Interactive Pluto Notebooks(math.hkust.edu.hk)
2 points by jwuphysics 5y ago|0 comments
65.
by jwuphysics 5y ago
Oriental Raisin Tea is a common hangover cure in East Asia. It's not clear to me whether the relevant compounds were covered in this study, but I would love to see more exploration of how well these Asian remedies work. (I'm perso
66.
by jwuphysics 5y ago
Have you written about your experiences developing this firmware and your involvement with the Telescope Array? I would be very interested to hear some of the stories (and lessons learned)!
67.
by jwuphysics 5y ago
Based on the OP's username, surely one of the deep learning algorithms is a denoising autoencoder, right?
68.
by jwuphysics 5y ago
No. The experimentalists used lasers to condense the atoms to high densities.
69.
by jwuphysics 5y ago
I think that's fairly typical for people who aren't used breaking down images into their constituent parts. In the language of computer vision, it would be like saying that our visual cortexes don't need to know how to segmen
70.
by jwuphysics 5y ago
Here is the actual article: https://www.pnas.org/content/118/7/e2013284118 > We tested eight annual and seasonal climate variables, including temperature, precipitation, frost days, and atmospheric CO2 con
71.
by jwuphysics 5y ago
Arthletic Brewing offers some really amazing Beliner Weisse beers and IPAs. I made the partial switch to NA beers over a year ago and it's been amazing. Only problem is that hoppy NA beers still trigger my GERD...
72.
by jwuphysics 5y ago
I had exactly the same reaction, and I also went to CMU for undergrad (not SCS though). However I found that it didn't translate to long-term productivity during my PhD program, when I needed to think about my career goals 5 years in t
73.
by jwuphysics 5y ago
The URL points to labml.ai. Also, HN encourages matching the post title with the link title.
74.
by jwuphysics 5y ago
While I respect the publication of this idea in a research journal, I'm fairly disgruntled by how Avi Loeb is now spending so much of his efforts promoting his book on the matter (i.e. profiting). The vast majority of astrophysicists r
75.
by jwuphysics 5y ago
This would pose a different kind of problem for people with aphantasia.
76.
by jwuphysics 6y ago
I can also provide some input on how to insult different kinds of astronomers depending on the field they work in. Cosmology: Use the word "cosmology" interchangeably with "astronomy." Simulations: "Did you include
77.
The HEALPix Primer(healpix.sourceforge.io)
1 points by jwuphysics 6y ago|0 comments
78.
by jwuphysics 6y ago
Cheers from Charm City! I just wanted to note that your website's listing says that ML engineers will be mainly working in TensorFlow (Python) and Scala.
79.
by jwuphysics 6y ago
I'm a little tired of articles mentioning "Harvard Astronomer" to add credibility to this ridiculous theory. Nobody else seriously believes this and we all know Avi wants to sell his book. Out of my network of ~200 astronomer
80.
by jwuphysics 6y ago
Astronomy is also an interesting case because this law doesn't necessarily hold true. The power spectrum, or Fourier transform of the autocorrelation function, isn't monotonic for matter on large scales. For example, baryonic acou
81.
by jwuphysics 6y ago
Wow, is that the auditorium in the CMU Gates building? I remember pulling all-nighter "homework parties" in there!
82.
by jwuphysics 6y ago
It doesn't appear that the Swift port for fast.ai is a high priority, but Jeremy, Sylvain, and co have rewritten the Python library from scratch and it is much more sensibly organized now. The version 2 codebase is completed developed
83.
by jwuphysics 6y ago
I've just received mine and I must say I find it so much nicer to learn using the print copy book! It forces me to type out (rather than copy and paste) the code, and I like being able to scribble all over the book. Given the thousands
84.
Gamma-Ray Coordination Network Circulars: GW170817(gcn.gsfc.nasa.gov)
1 points by jwuphysics 9y ago|0 comments
85.
by jwuphysics 10y ago
I searched on my podcast app, and found an RSS feed that has the three existing episodes. Who would have known that YC has a SoundCloud account? https://feeds.soundcloud.com/users/soundcloud:users:24682936...
86.
by jwuphysics 10y ago
That is because redder colors correspond to a cooler or lower color temperature. Colloquially, we think of blues as cool and reds as warm, but blue light is actually more energetic (or "hot") than red light.
87.
by jwuphysics 11y ago
I can't get through the payway, but based on The Verge ( http://www.theverge.com/2016/1/27/10841600/starry-wireless-g... ) story and comments that I've seen here, I think I'm going to have t
88.
by jwuphysics 11y ago
The factor that the Comet Lovejoy contains ethyl alcohol and a simple saccharide is not unexpected; this paper does however mark the first identification of these organic molecules in a comet. Astronomers have previously detected both of th
89.
by jwuphysics 11y ago
Likewise: http://imgur.com/ux3xfL5
90.
by jwuphysics 11y ago
I've never seen this venn diagram before--thanks for bringing it up. I find that, as an academic (pursuing a Ph.D. in astrophysics) that plenty of traditional researchers are able to hack together code (many haven't ever taken a f

More ›