ocfnash

15 ms·

121.
by ocfnash 8y ago
Like most Irish people, I am a huge fan of the EU, and of the many benefits we enjoy thanks to our fellow European citizens, via the EU. Nevertheless I feel compelled to nitpick at the statement that the EU bailed Ireland out. I believe the
122.
by ocfnash 9y ago
For anyone looking for more of Halmos, his book "I want to be a mathematician: an automathography" is worth a look. Also well worth a look is Serre's "How to write mathematics badly": https://www.youtube.
123.
Penetrating the abstract CPU model: Intel store-buffer capacity is measurable(nicknash.me)
1 points by ocfnash 9y ago|0 comments
124.
Tools for converting Python code to AWS Step Function JSON(github.com)
86 points by ocfnash 9y ago|4 comments
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Abel Prize 2018 awarded to Robert P. Langlands [pdf](abelprize.no)
2 points by ocfnash 9y ago|0 comments
126.
by ocfnash 9y ago
Possibly a good time to plug moissanite yet again: http://diamondssuck.com
127.
by ocfnash 9y ago
I'm getting rather ridiculous myself at this stage but THEORETICALLY, if the hashes were all done including a long enough salt that was stored independently of the hashes then I believe there would be genuine significant security impro
128.
by ocfnash 9y ago
You have a good point, though I _presume_ the challenge for the three digits of the PIN is made in tandem with the challenge for three characters from the password (making the cracking easy but not perhaps totally hilarious). Were this not
129.
by ocfnash 9y ago
Urgh. They probably do store the unhashed pin/password rather than the quadratically-many 4 x N\choose 3 combinations. Still, at least an account with known username is guarded with a secret from a space of size 10^3 x k^3, for k =~ 70
130.
by ocfnash 9y ago
To log in to an account for my Irish bank, AIB, you just need: * A theoretically-secret 8-decimal-digit id * Three digits from a secret 5-decimal-digit PIN For many years all new online credentials were assigned an 8-decimal-digit
131.
by ocfnash 9y ago
Also Atiyah supervised Donaldson (albeit jointly with Hitchin), Mirzakhani was supervised by McMullen and others I'm sure.
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by ocfnash 9y ago
Yes I do indeed; thank you for the correction!
133.
by ocfnash 9y ago
One corollary of E=mc^2 is that the rest mass of a bound state of fundamental particles will not equal the sum of the rest masses of the individual constituents. For example, the rest mass of a Helium-4 nucleus turns out to be less than the
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by ocfnash 9y ago
I recently discovered that quite a bit of Ghana is covered in Street View. I feel it provides the most authentic armchair-compatible peek available, at this part of the world that differs so much from my own.
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by ocfnash 9y ago
On the plus side, this article gives us another data point supporting Betteridge's law.
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New Universe Simulation Makes Predictions About Cosmological Structures(simonsfoundation.org)
1 points by ocfnash 9y ago|0 comments
137.
by ocfnash 9y ago
SPOILER ALERT ^^
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by ocfnash 9y ago
Even at Oxford I only ever heard it used humorously.
139.
by ocfnash 9y ago
My faith in the article's objectivity is called into question by the fact that it reports: "An American Airlines flight attendant bullied a tired mother of twin babies over her stroller, and then readied himself to punch a passeng
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by ocfnash 9y ago
Just to advertise this addendum a bit more! The Kempe-chain proof of the 5-colouring of any planar graph is easy and beautiful.
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by ocfnash 9y ago
For anyone interested, there's a really excellent book on the history of the problem as well as the AH proof, going into quite a lot of detail. Very highly recommend. "Four Colors Suffice: How the Map Problem Was Solved" by R
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Editors-in-chief of math journal resign over controversial paper(retractionwatch.com)
2 points by ocfnash 9y ago|0 comments
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by ocfnash 9y ago
Thanks for the kind remarks :-)
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by ocfnash 9y ago
Ah yes, but it is the generalisation to _fractional_ ideals that is required to obtain the ideal class group.
145.
by ocfnash 9y ago
A rather obvious but often overlooked piece of advice is to "read the masters". IMHO it is very easy to waste tonnes of time reading papers / books that are OK but still vastly inferior to an account of a master. Want to lear
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by ocfnash 9y ago
I think that disc-ish object is the light source, which I suppose is rendered to make it clear why one side of a polygon is dark while the other is bright etc.
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by ocfnash 9y ago
Have you tried writing down the Parsons Code [1] for the melody and searching against a large corpus? E.g., https://www.musipedia.org/melodic_contour.html 1. https://en.wikipedia.org/wiki/Parsons_code
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by ocfnash 9y ago
The phrase "Simon robot" reminds me of the following _Simon-playing_ robot, way too cool not to mention in this context: http://redfrontdoor.org/blog/?p=702
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by ocfnash 9y ago
This reminds me, of Edith Einstein, niece of Albert. She was also a talented physicist overshadowed by her extremely famous (male) relative. Her academic path even crossed with that of her uncle: she wrote a paper analysing the physics of r
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Tweetable Mathematics(mathoverflow.net)
2 points by ocfnash 9y ago|0 comments

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