People

In his circles

60 people

David Moore

Attends San Diego Miramar College

Lives in San Diego, CA

144 followers|28,358 views

AboutPostsPhotosVideos

People

In his circles

60 people

Education

- San Diego Miramar College2011 - present

Basic Information

Gender

Male

Birthday

March 19, 1994

Links

YouTube

Other profiles

Story

Tagline

Aspiring physicist

Introduction

I'm a student who would love to go into high-level academia. See my portfolio and my youtube channel for some projects I've worked on.

I started programming at the age of 11, and now I'm studying physics and some pure math at the level of real analysis, introductory computational physics, and introductory dynamics (Lagrangians and what-not). I do all this on my free time, but I have very little going for me academically, being in community college, with my only STEM classes being introductory linear algebra and vector calculus (old news!)

If you have project recommendations, book recommendations, or anything really, I'd love to hear them!

Bragging rights

Pretty fluent with Java/C++ (Yes really!)/JS/DBPro/Mathematica

Places

Currently

San Diego, CA

Contact Information

Work

- dmoore101@gmx.com
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Amazing Arrow Trick

If works from the refraction of the light by a different medium so that the light goes through a focal point outside the glass and reverses itself. That bending from going through the different medium is itself a really cool principle called**Snell's Law,** and here's a great article on it:

https://plus.google.com/+TomEigelsbach/posts/HN1EMzCSjGv

via +AsapSCIENCE #scienceeveryday

If works from the refraction of the light by a different medium so that the light goes through a focal point outside the glass and reverses itself. That bending from going through the different medium is itself a really cool principle called

https://plus.google.com/+TomEigelsbach/posts/HN1EMzCSjGv

via +AsapSCIENCE #scienceeveryday

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Loved it will show my brother that one.

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+Hamilton Carter, I hope you're happy, your articles on fun Lorentz geometry things pushed me over the edge with my dissatisfaction of knowledge in foundational geometry (I mean here Lorentzian too). Now I've got a list of questions like "Can I enumerate the theorems of Euclidean geometry" (turns out Wolfram's New Kind of Science has a decent bit of material here), "What rigorous connections are there between synthetic and metric/inner-product/analytic geometry" (synthetic geometry "on real spaces", whatever that turns out to mean), "Can I come up with a set of axioms [in the same style used in foundations] to describe Lorentz geometry" and, if so, "how can I enumerate the theorems of Lorentz geometry".

It's really bugging me that all this tensor, vector (and pseudovector), inner product, metric, axiomatic, and differential*stuff* I've learned, describe the same concepts! I think I'm on the right track but if you have any book recommendations that would be great. Maybe I'm just being silly, but it seems like my notion of *space* (which is what all the physics usage of vector/matrix/tensor algebra hinge on) jumps between axiomatic statements, statements about inner products, and statements about cartesian coordinates, without much of a link between the first and the last two.

(Interesting article I found: Trigonometry in Lorentzian Geometry, by Birman and Nomizu. It proves, among other things, the "reversed Cauchy-Schwarz inequality"! Since of course in the analogue of <a,b>=|a||b|cos(theta), instead of cos(theta)<=1, we have cosh(theta)>=1. The article is behind a paywall on JSTOR.)

It's really bugging me that all this tensor, vector (and pseudovector), inner product, metric, axiomatic, and differential

(Interesting article I found: Trigonometry in Lorentzian Geometry, by Birman and Nomizu. It proves, among other things, the "reversed Cauchy-Schwarz inequality"! Since of course in the analogue of <a,b>=|a||b|cos(theta), instead of cos(theta)<=1, we have cosh(theta)>=1. The article is behind a paywall on JSTOR.)

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Hey +David Moore! Sounds like you're having all kinds of fun :)

I'm in Savannah at the American Physical Society meeting, so I'll try to respond with more detail in a few days, but in the meantime, if you want to go down a whole other deeper rabbit hole in regards to the vector/tensor/spinor analogies, check out David Hestenes' concept of geometric algebra. He's presenting at Texas A&M next week, and here in Savannah in the next couple of days. I don't think he's ever written a whole book on the subject, but check out, (preferably at a library since it's super-expensive):

http://books.google.com/books?id=VW4yt0WHdjoC&lpg=PP1&dq=geometric%20algebra&pg=PP1#v=onepage&q=geometric%20algebra&f=false

I'm in Savannah at the American Physical Society meeting, so I'll try to respond with more detail in a few days, but in the meantime, if you want to go down a whole other deeper rabbit hole in regards to the vector/tensor/spinor analogies, check out David Hestenes' concept of geometric algebra. He's presenting at Texas A&M next week, and here in Savannah in the next couple of days. I don't think he's ever written a whole book on the subject, but check out, (preferably at a library since it's super-expensive):

http://books.google.com/books?id=VW4yt0WHdjoC&lpg=PP1&dq=geometric%20algebra&pg=PP1#v=onepage&q=geometric%20algebra&f=false

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Pi day! might as well. Metropolis markov-chain monte-carlo sampling of the unit square, which can be used to calculate pi.

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Would anyone be interested in a post summarizing the mathematics involved in programming this?

Woohoo! This is beautiful, ain't it? 99% code from scratch. I used glm and CImg, sue me.

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In his circles

60 people

This eccentric, fast-talking genius is using his infectious love of numbers to market a tricky product: He wants to popularize math worldwide.

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+David Moore Yes i think your right on the money there, its very it or miss.

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An animated image of this has been going around on the internet, but I found a much better version.

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"The only documentary about Grigori Perelman is now WITH English subtitles!" Grigori Perelman documentary (with English subtitles)

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Chasing the Green Flash in Cambodia.

http://linksthroughspace.blogspot.fi/2014/02/cambodia-2014-chasing-green-flash-catch.html

Have a look at my new gif animation of the setting Sun into a veil of dust.

http://linksthroughspace.blogspot.fi/2014/02/cambodia-2014-chasing-green-flash-catch.html

Have a look at my new gif animation of the setting Sun into a veil of dust.

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Woohoo! This is beautiful, ain't it? 99% code from scratch. I used glm and CImg, sue me.

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Well Done David

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