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Posts

January 31, 2015

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1:38 AM | sagansense: In Mysterious Pattern, Math and Nature...
sagansense: In Mysterious Pattern, Math and Nature Converge image 1: In Cuernavaca, Mexico, a “spy” network makes the decentralized bus system more efficient. As a consequence, the departure times of buses exhibit a ubiquitous pattern known as “universality.” (Photo: Marco de Leija) image 2: The red pattern exhibits a precise balance of randomness and regularity known as “universality,” which has been observed in the spectra of many complex, correlated systems. In this spectrum, […]

January 30, 2015

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11:05 PM | January 2015 Geometry Regents Parts II, II, IV (Open-Ended)
Once again, here are the multiple-choice problems with explanations for today's New York State Geometry Regents exam. Since I typed this up as quickly as I could, there are no images, graphs or diagrams included. I'll edit them as I am able to. A common theme: there were several questions involving the equation of a circle, as there always are, as well as several questions which not only involved the Pythagorean Theorem, but very specifically a 3-4-5 triangle or a multiple of it. Link to Part […]
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4:29 PM | The Batman Murder Mystery
A Batman mystery based on telling time, adding and subtracting time, and other time based shenanigans. Differentiated.. Batman Murder Mystery_easy Batman Murder Mystery_medium Batman Murder Mystery_hard  
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2:42 PM | Thirty
(Click on the comic if you can't see the full image.) (C)Copyright 2015, C. Burke.Fun fact: if I didn't post this today, I'd have to wait two more months to use it. By tradition, "30" also means the end of a news story even though more months end in 31 days. That's because it has nothing to do with the end of the month and more to do with the letters XXX, which is 30 in Roman numerals. Not that there's any hidden meaning here. This is not the end of anything. ... except for these notes, of […]
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11:27 AM | Flowchart: Should you vaccinate your child?
Yes. Yes. Yes. Yes. Yes. Yes. Yes. Yes. Yes. Yes. Yes. Yes. Yes. Yes. Yes. Yes. Yes. Yes. Yes. Yes. Yes. Yes. Yes. Yes. Yes. Yes. Yes. Yes. Yes. Yes.…Tags: flowchart, vaccination
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9:46 AM | The Miura Fold
via Distractify

January 29, 2015

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7:42 PM | Figures Library update
10 new images were appended to the Figures Library. Now it contains 980 different impossible figures.  http://im-possible.info/english/library/grey/grey98.html
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7:17 PM | Chances that a drug treatment helps
It's a common belief that if someone has a medical condition, a patient can take a treatment and the condition gets better or goes away. That is, improvement is directly…Tags: drugs, health, Upshot
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4:03 PM | The 1983 Star Trek Loci Problem
spock instructions via io9.com
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12:07 PM | January 2015 Geometry Regents Parts II, III, IV (Open-Ended)
Once again, here are the multiple-choice problems with explanations for today's New York State Geometry Regents exam. Since I typed this up as quickly as I could, there are no images, graphs or diagrams included. I'll edit them as I am able to. A common theme: there were several questions involving the equation of a circle, as there always are, as well as several questions which not only involved the Pythagorean Theorem, but very specifically a 3-4-5 triangle or a multiple of it. I hope […]
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9:44 AM | Meissner Tetrahedra
via Distractify
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8:33 AM | State Rorschach
Stare at boundary lines long enough, and you'll start to see weird things too.Tags: kidding
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1:56 AM | fouriestseries: Wave Equation The wave equation is a partial...
fouriestseries: Wave Equation The wave equation is a partial differential equation that describes the propagation of various types of waves. The equation appears throughout many fields in physics, including acoustics, fluid dynamics, electromagnetism, and quantum mechanics. With some modifications, it can even describe the spread of traffic jams on busy highways! The one-dimensional equation was first discovered by d’Alembert in 1746 as he studied how vibrations propagated through a […]

January 28, 2015

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9:57 PM | January 2015 Geometry Regents exam, Multiple-Choice
Once again, here are the multiple-choice problems with explanations for today's New York State Geometry Regents exam. The open-ended problems will (most likely) appear tomorrow. Since I typed this up as quickly as I could, there are no images, graphs or diagrams included. I'll edit them as I am able to. A common theme: there were several questions involving the equation of a circle, as there always are, as well as several questions which not only involved the Pythagorean Theorem, but very […]
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9:19 PM | Mr. Men #2
(Mr Rectangle is borrowed rather liberally from Mr Grumpy).
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7:59 PM | Fence 4
Fence 4   by Andreas Aronsson  http://im-possible.info/russian/art/computer/andreas-aronsson.html#fence4
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7:18 PM | God Amplification Chamber
God Amplification Chamber   by Sebastián Píriz (SebasP)   http://im-possible.info/english/art/escher-inspired/sebastian-piriz.html   Author - http://sebasp.deviantart.com/
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5:32 PM | Questionable fumble statistics for Deflate-Gate
A data-centric look at New England Patriots fumble rates at home made the rounds this week. The most cited tidbit was that there is only a 1 in 16,233 chance…Tags: football, Patriots, sports
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4:50 PM | Data: Removing the Question
What a great strategy this is. Remove the question, start a discussion. Then pose the questions. Simple, effective, smart. via dy/dan
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1:49 PM | Binary
“There are 10 kinds of people in the world. Those who understand binary, those who don’t … and like, 8 other kinds…” {I like this version best]
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9:42 AM | Fibonacci Shell
via Instructables
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8:05 AM | Mapping ice layers with radar data
I don't know exactly how much data NASA has in the bank, but I think it's a lot. Explained in the video below, they estimated the age of ice layers…Tags: ice, NASA, weather
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2:28 AM | itscolossal: Mathematically Precise Kinetic Sculptures and...
itscolossal: Mathematically Precise Kinetic Sculptures and Transformable Objects by John Edmark

January 27, 2015

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7:50 PM | Complements #7 The Pythagorean Theorem
The Pythagorean Theorem is possibly the first (and in my opinion, only) piece of beautiful maths in GCSE. Not only is it a majestic piece of mathematical wonder, it carries with it great history, real-life application, visual beauty and it … Continue reading →
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7:42 PM | New artworks by Vadim Dubinin
New artworks by Vadim Dubinin   http://im-possible.info/english/art/pencil/vadim-dubinin.html#2015
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6:20 PM | Fun Pythagoras Question
Simple yet effective.  
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6:15 PM | A century of National Geographic maps
Celebrating the 100th year of the National Geographic cartographic department, they provide a truncated roundup of the thousands of maps they've made over the past century. I liked this tidbit…Tags: history, National Geographic
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4:39 PM | [Sponsor] Beer, Pizza & Data Science
Thanks to Metis for sponsoring the feed this week. Metis, known for their data science bootcamps in New York City, is holding a Data Science Open House on February 3.…
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12:50 PM | Fibonacci sculptures fake movement
John Edmark made some pretty things: These 3-D printed sculptures, called aniforms, are designed to animate when spun under a strobe light. The placement of the appendages is determined by…Tags: 3-D printing, Fibonacci
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11:51 AM | Perfect Numbers
A great comedy sketch about perfect numbers by Dave Gorman. Be careful if you want to show it to your class, there’s at least two swear words thrown in there! Worth it. You could rehearse a well placed cough. Ha!
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