kdavis

14 ms·

121.
by kdavis 13y ago
> I've also heard someone suggest that you might be able to produce an Alcubierre-like configuration if you could make a compact dimension's radius larger within some local region. Interesting, I hadn't heard of that one.
122.
by kdavis 13y ago
I agree with all your reservations. The article indeed gave no indication of hope on the central problem, obtaining a violation of the weak energy condition. However, there is a relatively easy way to violate the weak energy condition using
123.
The Riemann hypothesis in various settings(terrytao.wordpress.com)
2 points by kdavis 13y ago|0 comments
124.
How Hackers Tapped Into My Cellphone For Less Than $300(npr.org)
5 points by kdavis 13y ago|0 comments
125.
by kdavis 13y ago
"Hey Mr Nugget, you the bomb." -D'Angelo http://youtu.be/kGknlEWjxZc
126.
by kdavis 13y ago
Is there a cheap, reliable open-source alternative? I'm sure that, in light of current events, many people would be interested.
127.
Ostel: Encrypted Phone Calls(ostel.co)
53 points by kdavis 13y ago|21 comments
128.
The Guardian Project: Open-Source, Secure Mobile Apps(guardianproject.info)
1 points by kdavis 13y ago|0 comments
129.
Primes(modular.math.washington.edu)
4 points by kdavis 13y ago|0 comments
130.
What is the knot associated to a prime? (2011)(neverendingbooks.org)
2 points by kdavis 13y ago|0 comments
131.
by kdavis 13y ago
The logic here seems flawed. Say, for example, that my "product" is to transfer $1000 to your bank account for every page you view on my site. Undoubtedly the market will love this "product". However, whatever the strategy, the business mod
132.
D-Wave: comment on comparison with classical computers(archduke.org)
4 points by kdavis 13y ago|0 comments
133.
European Startups, Apply For Disrupt Europe: Berlin Startup Battlefield Now(techcrunch.com)
1 points by kdavis 13y ago|0 comments
134.
Comment on: "Classical signature of quantum annealing"(arxiv.org)
2 points by kdavis 13y ago|0 comments
135.
New light cast on dark matter...(guardian.co.uk)
1 points by kdavis 13y ago|0 comments
136.
Hacking Google Conversational Search or What I Did Over the Long Berlin Weekend(blog.forty.to)
2 points by kdavis 13y ago|0 comments
137.
Google Lays Out its Future for Everyone(npr.org)
2 points by kdavis 13y ago|0 comments
138.
by kdavis 13y ago
I'd be interested in Google/NASA's take on "Quantum annealing with more than one hundred qubits" from Boixo et al. http://bit.ly/12eANRI This preprint showed no speed advantages for D-Wave's computer. Specifically, it showed quantum annea
139.
by kdavis 13y ago
We at the startup www.forty.to are working on just this problem, question answering. We've made some progress too. If you're interested here's a YouTube demo video http://youtu.be/VDUw4oLU7no
140.
Colorless green ideas sleep furiously(blog.forty.to)
1 points by kdavis 13y ago|0 comments
141.
by kdavis 14y ago
Out of curiosity what criteria did you use to indicate a homology element was persistent?
142.
Big Data and the Topologist (2012)(ldtopology.wordpress.com)
42 points by kdavis 14y ago|21 comments
143.
Simple but Challenging: The Universe According to Planck(sci.esa.int)
29 points by kdavis 14y ago|4 comments
144.
by kdavis 14y ago
This will all come to a head, very soon. Mary Meeker's forecast, the very same from which the inset slide is drawn, predicts the smartphone/tablet installed base will overtake desktops Q2 2013. Something must break. It will be interesting.
145.
by kdavis 14y ago
Not really. Once he introduces the square root he introduces imaginary numbers, sqrt(-1), and transcendental numbers, for example the Gelfond–Schneider constant 2^sqrt(2).
146.
by kdavis 14y ago
This is more-or-less my point. Once you allow sqrt and ln (or sqrt, log, and e) the problem is silly. He explicitly allows, see the bottom of the article, sqrt, log, and irrational numbers.
147.
by kdavis 14y ago
I'll assume you are not trolling. My point is that log(-1)/(sqrt(-1)*log(e)) = ln(-1)/sqrt(-1) I am just writing the same equation using a log with another base so I don't have e in the equation explicitly.
148.
by kdavis 14y ago
Two points: 1. As soon as you allow square roots, you allow irrational numbers. (This sqrt(2).) 2. "The natural log - ln - is not rational" is a different statement than "e is irrational". A rational function is one that can be written as
149.
by kdavis 14y ago
ln(-1)/sqrt(-1)
150.
by kdavis 14y ago
This seems slightly silly if one is allowed to use, as Ed Pegg suggested, log and square root. If log and square root are allowed, then the obvious solution is log(-1)/(sqrt(-1)*log(e)) which is accurate to an infinite number of digits.

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