jwuphysics

13 ms·

1. 31.▲
   by jwuphysics 3y ago

   Satellites are also one of the biggest sources of radio frequency interference. (I did my PhD in radio astronomy and currently work on multiwavelength astronomy.)
2. 32.▲
   by jwuphysics 4y ago

   Yeah, STScI is very legitimate (I work there as an astronomer) and it has an excellent Office of Public Outreach team. The graphic does specify that it is an illustration, but I agree that it could explicitly mention that it's an artis
3. 33.▲
   by jwuphysics 4y ago

   I don't have a good answer for you, but the best advice I'd say is to read Feynman's book "QED: the Strange Theory of Light and Matter" (it's really just a four part lecture series).
4. 34.▲
   by jwuphysics 4y ago

   This biggest caveat is mentioned in the ApJL paper [0] introduction: > Because SMBH growth via accretion is expected to be insignificant in red-sequence ellipticals, and because galaxy–galaxy mergers should not on average increase SMBH m
5. 35.▲
   by jwuphysics 4y ago

   As someone who is unaware of any relevant literature on the subject, I'd love to hone my intuitions a bit. Could you say more about your line of reasoning?
6. 36.▲
   by jwuphysics 4y ago

   Is there any way to change the keyboard shortcuts on the Multi Account Containers? Cmd+Alt+. is the default shortcut for 1Password on Linux.
7. 37.▲
   by jwuphysics 4y ago

   Agreed, thanks for saying this. I'm also another astronomer by trade and I'm very surprised that Quanta ran with this title. I like the work that Xin Wang has done, and I'm usually a fan of Quanta Magazine reporting and Simon
8. 38.▲
   by jwuphysics 4y ago

   I found it really useful when I got started in numerical computing and machine learning. Now I use the Jax/Numpy stack and Pytorch, but octave still has a special place in my heart due to Andrew Ng's canonical intro to ML Coursera
9. 39.▲
   by jwuphysics 4y ago

   Agreed. I just purchased a Maingear Vector Pro 2 with a mobile 3080 Ti (16 GB, ~165W power) for $1700. It's the biggest purchase I've made but I can quickly prototype ML models and it make research projects so much snappier.
10. 40.▲
    by jwuphysics 4y ago

    That first one is pretty good.
11. 41.▲
    by jwuphysics 4y ago

    Thanks for compiling this list, and for what it's worth, I don't think this comment was shadow-banned despite what you mentioned in your other reply.
12. 42.▲
    by jwuphysics 4y ago

    Congratulations to the whole team! I know this celebrates the achievements by select Northrop Grumman employees, but the JWST success deserves to be shared among all the teams: NASA, ESA CSA, U Arizona, Ball Aerospace, L3Harris, Lockheed M
13. 43.▲
    by jwuphysics 4y ago

    It's possible through deconvolution with a model of the "point spread function" aka PSF. There are techniques from radio astronomy (where interferometry necessitates some kind of Fourier basis model and deconvolution/ima
14. 44.▲
    by jwuphysics 4y ago

    Nice book, I really like this approach. I also think Townsend's A Modern Approach to Quantum Mechanics is a wonderful book. It's similar to Sakurai but a bit more intelligible for undergrads.
15. 45.▲
    by jwuphysics 4y ago

    This is definitely an interesting object, but based on the recent literature[0] it seems most astronomers attribute the odd signatures to interactions with its circumstellar material. The Wikipedia article focuses a bit too much on the init
16. 46.▲
    by jwuphysics 4y ago

    I hadn't heard of this organization but their headline certainly didn't pass the sniff test. From their Wikipedia page: > In 2017, FIRE was listed as one of the sponsors of the conservative campus group Turning Point USA's
17. 47.▲
    by jwuphysics 4y ago

    Thanks for sharing. Can you say a little bit more about what prompted you to make this?
18. 48.▲
    Define “Better”(tritonstation.com)

    1 points by jwuphysics 4y ago|0 comments
19. 49.▲
    by jwuphysics 4y ago

    > Consider this question - look outside at a tree. Where did all the carbon in the tree come from? I assume that you are referencing the famous 1983 interview with Feynman, in which he playfully says that "trees come out of the air!
20. 50.▲
    by jwuphysics 4y ago

    I have two recommendations you might find useful. The first is QED, a series of lectures by Richard Feynman. This text covers the qualitative nature of the perturbation theory used for quantum electrodynamics. The second is Quantum Field Th
21. 51.▲
    by jwuphysics 4y ago

    I agree that Americans love Trader Joe's, but I would by no means consider it to be a cheap grocery store.
22. 52.▲
    by jwuphysics 5y ago

    I've been seeing a lot more about MosaicML on my Twitter feed. Just wanted to ask -- how are your priorities different than, say, Fastai?
23. 53.▲
    by jwuphysics 5y ago

    They've certainly given this some thought: > We are but one very small company in a universe of many hundreds of companies using AI software for drug discovery and de novo design. How many of them have even considered repurposing, o
24. 54.▲
    by jwuphysics 5y ago

    Astronomers have developed an indexing strategy using Hierarchical, Equal Area, and iso-Latitude Pixelisation (HEALPix): https://arxiv.org/abs/astro-ph/9905275
25. 55.▲
    by jwuphysics 5y ago

    Agreed, although with the caveat that Nature is not regarded particularly well in my discipline. In fact, most for-profit astronomy/astrophysics journals carry some stigma.
26. 56.▲
    by jwuphysics 5y ago

    Thanks for the more up-to-date insight! I remember receiving requests to submit and review papers to their astronomy journal when I was a PhD student, and had decidedly avoided them since then.
27. 57.▲
    by jwuphysics 5y ago

    I was already on high alert when I saw that this was written in Frontiers, a potentially predatory journal publisher that makes it notoriously difficult to adequately review (and reject) bad papers. See e.g. https://en.wikipedia
28. 58.▲
    by jwuphysics 5y ago

    I noticed you posted trimread on another post (from CNN) so I wanted to mention two things: (1) on this site the images and captions have vanished, and (2) on the other post, several links have [Trim] appended, which made it slightly harder
29. 59.▲
    by jwuphysics 5y ago

    I'm sorry to hear about your experiences and it sounds like you learned a lot from firsthand knowledge. But, respectfully asking, what does inflammatory foods or poor eating habits have to do with GMO foods?
30. 60.▲
    by jwuphysics 5y ago

    Although not fully related, this reminds me of another paper I recently found on astro-ph: https://arxiv.org/abs/2201.08997