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Posts

June 30, 2015

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4:45 PM | Mathematics in Photos #10
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4:38 PM | The New GCSE #7 Non-Calc Side by Side
Ok, these are the new specimen papers (the last ones have been thrown out essentially!) Each page is side by side for the 3 exam boards (there’s a fourth exam board, but they have 2 longer papers so the comparison is a bit more difficult, so i’ve omitted them). On hand is Michael Gove to … Continue reading →
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3:39 PM | Combining Inside Out emotions for new ones
Spoiler alert for Inside Out. At the climax of the movie, we see that emotions can combine for deeper, more complex feelings, and it's these combinations that get Riley through…Tags: emotion, Inside Out
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12:45 PM | The Water Tower Problem and the Perils of Rounding
Question 34, the first Part IV question of the New York State Geometry (Common Core) Regents exam for June 2015, read as follows: The water tower in the picture below is modeled by the two-dimensional figure beside it. The water tower is composed of a hemisphere, a cylinder, and a cone. Let C be the center of the hemisphere and let D be the center of the base of the cone. If AC = 8.5 feet, BF = 25 feet, and m∠EFD = 47°, determine and state, to the nearest cubic foot, the volume of the […]
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8:54 AM | Animated map shows Trans-Atlantic slave trade
The Trans-Atlantic Slave Trade Database provides records for thousands of voyages between the 16th and 19th centuries. Andrew Kahn for Slate mapped about 20,000 of them. Portugal and Spain are…Tags: animation, Slate, slavery
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5:00 AM | The power set 
The power set 
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4:10 AM | Really? I always thought he was more of a square….
Really? I always thought he was more of a square….
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3:41 AM | Photo
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2:19 AM | hyrodium:LTNS:)I made an animation of Lorenz Attractor.Long...
hyrodium:LTNS:)I made an animation of Lorenz Attractor.Long version: https://www.youtube.com/watch?v=v6UABhdh_lA
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12:00 AM | Via. 
Via. 

June 29, 2015

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9:13 PM | the-harmony-of-the-spheres: I don’t know much about this book,...
the-harmony-of-the-spheres: I don’t know much about this book, damn… Can we take a moment to appreciate the cover art here. I think im developing a weird hobby for old math text covers
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7:27 PM | Mathematics in Photos #9
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7:09 PM | 7 Days of Maths: MathsSandpit.com #1
The new revamped Resource Of The Day is here at last! I will be featuring 7 great resources from one website over the course of 7 days. First up is mathssandpit.co.uk which is run by @Ms_Kmp The resource I’ve picked for today is this wonderful experimental probability idea. I love it, chiefly because it uses … Continue reading →
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6:41 PM | MATH
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6:13 PM | A surveillance system that watches over an entire city
Technology continues to advance quickly, but the social questions are lagging a bit. Radiolab explores the topic of we-can-but-should-we from the perspective of a surveillance system that watches an entire…Tags: privacy, security
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4:00 PM | Ceaseless Tread of Pictures of PIctures
In his Sherlock Holmes story "The Man with the Twisted Lip" Arthur Conan Doyle had his character Dr. John Watson notice:Ordering my cab to wait, I passed down the steps, worn hollow in the center by the ceaseless tread of drunken feetAbove is a detail from the drawing "Twin Staircases in Vitorchianoby" by Rhode Island School of Design  Professor Fred Lynch from his blog. It nicely illustrates Dr. Watson's observation. I found a comparable photograph of such stairs here. The tread of those […]
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2:24 PM | Photo
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1:06 PM | curiosamathematica: A Von Kármán vortex street is a repeating...
curiosamathematica: A Von Kármán vortex street is a repeating pattern of swirling vortices caused by the unsteady separation of flow of a fluid around a rounded obstacle.
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12:05 PM | Summer To-Do Diagram
(Click on the comic if you can't see the full image.) (C)Copyright 2015, C. Burke.It's oddly accurate while leaving out a whole lot of stuff. But definitely the proofreading! There are new curriculums to be learned, and I need to refresh in upper-level classes in case I'm called to teach those. And now is a good time to assess what worked and what didn't -- particularly, with the new material which I hadn't taught in the same manner before. So I'm not really off. ... except that I am. […]
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7:54 AM | Data into art and connecting to humans
Visualization tends to rest in the realm of efficiency and accuracy. From a research perspective, these are easier things to measure than say, emotion and connection to the data that…Tags: Creators Project, human
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1:35 AM | Photo
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12:00 AM | Via Futility Closet.  
Via Futility Closet.  

June 28, 2015

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8:06 PM | Thomas Sopwith’s Stratigraphic Models
Model-X – Thomas Sopwith [1841] First produced in 1841 Thomas Sopwith’s wooden models were some of the earliest three-dimensional representations of Earth’s geological strata. Layered, glued, hand carved and polished, his models demonstrate the abilities of a skilled woodworker and isometricist. Sopwith began his apprenticeship as a cabinet maker and so his interests in carpentry […]
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7:00 PM | #mathsTLP 28th June 2015
Welcome back! We have a book giveaway this week from @SAGEeducation Follow this link to enter the draw, and receive a 40% discount even if you aren’t the winner! Here are this week’s starters: starters 28 June Lesson 1: Icebreaker activities for a new class Lesson 2: Real Life Trigonometry Lesson 3: Cover Lesson Ideas … Continue reading →
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2:38 PM | Pie Charts
via RobCham
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1:17 PM | Mathematics in Photos #8
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7:12 AM | Area Problem #20
The triangle ABC passes through the centre of the circumscribed circle. The area of triangle ABC = 643.5cm2 The perimeter of triangle ABC = 143 cm Find the area of the circle in terms of pi.

June 27, 2015

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10:47 PM | thededekindadafunction: SMBC THIS. Especially the golden ratio...
thededekindadafunction: SMBC THIS. Especially the golden ratio one. 
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12:11 PM | Mathematics in Photos #7
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7:58 AM | Displacement
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