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8:22 AM | Women scientists in history

A scary timeline of female education: http://en.wikipedia.org/wiki/Timeline_of_female_education And some of the very few women scientists in the otherwise enlightened Europe: Beatriz Galindo (1465?-1534), Spanish Latinist, writer, humanist and teacher of Queen Isabella of Castille and her children http://en.wikipedia.org/wiki/Beatriz_Galindo Juliana Morell (16 February 1594 – 26 June 1653) Spanish nun, first woman to receive a Doctor of Laws […]

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7:13 AM | The Other Half – Parable of the Polygons

Anna Haensch and Annie Rorem are the hosts of a new podcast, The Other Half. This is the second of two posts based on the first episode, about racism and segregation. In the first part of episode one, we use the Racial Dot Map to get a sense of what race looks like in our country. And... Read more »

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7:15 PM | Tangential to Math

A couple of not-very-mathy postings that I think worth passing along:
a)
The first is an interesting and timely
philosophical/psychological piece, that I'll (tenuously) justify as math-related because it involves the perception of
probabilities: applying the "trolley car problem" (ethics thought experiment) to self-driving cars
and real life...
https://medium.com/@tanayj/

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The series ‘What a Mathematician should visit’ continues. For this summer I have decided to write about a city from as many European countries as possible. They will be mostly countries I have visited in the past ^_^ For today I have chosen Bucharest, Romania. Romania is my home country and I am really excited to write […]

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4:00 PM | New Themes: Apostrophe and Canard

Introducing Apostrophe and Canard, two magazine themes available for free.

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No summary available for this post.

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1:31 PM | Next Symbol Puzzle for 28 May 2015

Given the symbol set: Which is the next symbol in the series? A: B: C: D: E: Please explain your answer!

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What is 7 times 8? I have posted a math trick so you’ll never forget the answer. You can multiply any two numbers from 6 to 10 using your two hands! Multiply Numbers Between 6 to 10 On Your Fingers There is a mathematical reason why this method is sound. Multiply Numbers Between 6 to … Continue reading Math Trick: Multiply Numbers Between 6 to 10 On Your Fingers

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theapocalypticalgorithm:
geometricloci:
The gif shows a deltoid moving inside an astroid .
MORE

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10:18 PM | Pi Approximation Day

7/22/2015Happy Pi Approximation Day:"BACK IN THE DAY" before we had hand held electronic calculators with a "pi" button we had to remember the digits of pi or we had to use an approximation for the digits of pi.I started out in college studying engineering and memorizing pi to 4 digits (past the decimal point) was sufficient for most courses and most applications:3.1415A popular approximation was 22/7, but this only gave an accuracy of two digits (past the decimal point) or:3.14A better […]

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6:37 PM | Flipped

(Click on the comic if you can't see the full image.) (C)Copyright 2015, C. Burke.I'm sure you always expected he'd be the first one to flip. This comic is long overdue, given how long ago I was introduced to the concept of the flipped classroom by (x, why?) reader, and occasional comic user, Stacey Roshan. Here is a Washington Post story from 2012 her flipped classroom. You do realize (and she probably does, as well) that I'm practically daring her to use this comic in a future lesson.
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fuckyeahfluiddynamics:
The kitchen is a fantastic place to witness the everyday beauty of fluid dynamics.
Daria Khoroshavina and
Olga Kolesnikova capture these delectable cooking-related GIFs on their Buttery Planet Tumblr. From pouring cream to drizzling syrup, there are countless examples of fluids in daily life. Check out their site for more awesome images and be sure to keep your eyes open for great examples of fluid behavior in your day-to-day life. (Image credits: Buttery
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2:50 PM | SCC 60: The Other Half

On this episode of Strongly Connected Components Samuel Hansen is joined by the hosts of the new ACMEScience podcast The Other Half, Annie Rorem and Anna Haensch. The Other Half, a new podcast from ACMEScience.com, is an exploration of the the other half of a bunch of things. First, Anna and Annie want to take […]

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2:47 PM | Mate in Two 27 May 2015

Chess is a great way to build up reasoning and pattern recognition skills. That is why I am introducing chess problems as a new type of puzzle for users to enjoy. Here is our very first puzzle. White moves first, and white can mate in two. Can you see the solution? If […]

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4:00 AM | One-Word Math Classes

Can you summarize a whole branch of mathematics in one word? Continue reading →

Editor's Pick

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rudescience:
The Average of Two Square Roots is Less than or Equal to the Square Root of the AvarageFile this under simple math things that make me unreasonably angry but are absolutely fascinating.I mean… look at that… why???

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11:15 PM | The Power of Biography

courtesy of pixabay.com
I always enjoy learning which popular math books have inspired other mathematicians along their way. One of the volumes that most frequently comes up, to my surprise, is E.T. Bell's "Men of Mathematics." In fact, it arose again in an obituary for John Nash over the weekend, mentioning it as one of his favorites. (Of course both the Sylvia Nasar bio and the movie

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5:32 PM | Sequence Puzzle for 26 May 2015

Today’s puzzle is very simple – just a short sequence of numbers. Can you identify the number that comes next – and why? Please enter the missing number: 4, 5, 8, 17, 44, 125, ?

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We're excited to announce new tools that help make WordPress even more accessible to people around the globe.

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8:49 AM | Fresh Turing preprints!

A couple of papers by Alan Turing have appeared on the arXiv. No, that’s right – The Applications of Probability to Cryptography and The Statistics of Repetitions are two papers Turing wrote during the Second World War, and they’re now available on the arXiv, transcribed into modern LaTeX by Ian Taylor. The papers were declassified in 2012, and... Read more »

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7:30 AM | "This Page Intentionally Left Blank"

5/26/2015This page intentionally left blank.I'm sorry, but Spock would say "That's not logical." David

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6/11/2015 The Undecanacci Sequence: a(0) = a(1) = a(2) = a(3) = a(4) = a(5) = a(6)
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5:08 AM | Friday the Thirteenth - again

11/13/2015Today is "Friday the Thirteenth" - again. This is the third one this year!!The next 5 years worth of "Friday the Thirtheenth"s are:
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2:00 AM | John Nash Dies, Bees Vote Democratically, The Cure For Corruption – Game Theory News May 2015

This month’s collection begins with the sad news that John Nash, 86, died in a taxi crash on Saturday. Nash was returning from Norway where he was recognized with the Abel Prize for a geometric result he proved known as the Nash embedding theorem. Nash is most known for game theory, as described in Sylvia … Continue reading John Nash Dies, Bees Vote Democratically, The Cure For Corruption – Game Theory News May 2015

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5:57 PM | Memorial Day Bee-B-Q

(Click on the comic if you can't see the full image.) (C)Copyright 2015, C. Burke.He's a 1-Bee Bomber, or a 1-Bee Broomer. Some things never change: like getting the Ol' Man away from the grill for more than a few seconds. And while you're grilling and enjoying the day off, keep in mind why you have the day off and the freedom to grill whatever you want in peace. Well, except for the bees. But even then, there's someone who's keeping you safe. Come back often for more funny math and geeky
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Stupiti che 1 non sia primo? Scopriamo insieme perché è "solo" l'unità!Abbiamo già visto come, partendo dai numeri primi, si possa sviluppare un discorso più o meno approfondito sulle fondamenta matematiche. Altrettanto fondamentale, però, si rivela provare a rispondere alla domanda su quale sia il numero primo più piccolo. E', infatti, abbastanza noto come il numero 1 sia stato ora inserito ora escluso dalla lista dei numeri primi, ottenendo in alcuni casi lo status di più piccolo tra […]

Agargun A.G. & Fletcher C.R. (1997). The Fundamental Theorem of Arithmetic Dissected, The Mathematical Gazette, 81 (490) 53-57. DOI: http://dx.doi.org/10.2307/3618768

Crandall R. & Pomerance C.B. (2005). Primes!, Prime Numbers, Prime numbers: a computational perspective 1-82. DOI: http://dx.doi.org/10.1007/0-387-28979-8_1

Caldwell C.K. & Xiong Y. (2012). What is the smallest prime?, Journal of Integer Sequences, 15 arXiv: 1209.2007v2

Citation

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Winifred Edgerton Merrill fu la prima americana ad ottenere un dottorato in matematica presso la Columbia University nel 1886. Nella sua tesi sviluppò una rappresentazione geometrica degli infinitesimi in diversi sistemi di coordinate, utilizzando lo jacobiano per per derivare le trasformazioni tra gli integrali nei diversi sistemi.Tra matematica e astronomiaNata a Ripon, nel Wisconsin, il 24 settembre del 1862 da Emmet e Clara Edgerton, si trasferisce con la famiglia a New York intorno al […]

Kelly S.E. & Rozner S.A. (2012). Winifred Edgerton Merrill: "She Opened the Door", Notices of the American Mathematical Society, 59 (04) 504-512. DOI: http://dx.doi.org/10.1090/noti818

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Winifred Edgerton Merrill fu la prima americana ad ottenere un dottorato in matematica presso la Columbia University nel 1886. Nella sua tesi sviluppò una rappresentazione geometrica degli infinitesimi in diversi sistemi di coordinate, utilizzando lo jacobiano per per derivare le trasformazioni tra gli integrali nei diversi sistemi.Tra matematica e astronomiaNata a Ripon, nel Wisconsin, il 24 settembre del 1862 da Emmet e Clara Edgerton, si trasferisce con la famiglia a New York intorno al […]

Kelly S.E. & Rozner S.A. (2012). Winifred Edgerton Merrill: "She Opened the Door", Notices of the American Mathematical Society, 59 (04) 504-512. DOI: http://dx.doi.org/10.1090/noti818

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Direi che oggi pomeriggio è stato un bel respirare, al Palazzo Brera. Cristina Lazzeroni dell'Università di Birmingham è venuta alle 18 (come avevo scritto nel post precedente) per raccontare del bosone di Higgs, del modello standard e di materia e antimateria. E' una sperimentale presso l'esperimento LHCb al CERN, l'esperimento dedicato proprio alla ricerca su uno dei grandi misteri dell'universo: perché in esso c'è un eccesso di materia (e d'altra parte se non fosse così, non ci sarebbe […]

Aaij R., B. Adeva, M. Adinolfi, C. Adrover, A. Affolder, Z. Ajaltouni, J. Albrecht, F. Alessio, M. Alexander & S. Ali & (2013). First Observation of CP Violation in the Decays of B_{s}^{0} Mesons, Physical Review Letters, 110 (22) DOI: http://dx.doi.org/10.1103/physrevlett.110.221601

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Per i I cieli di Brera, il 24 settembre (domani... scusate per il ritardo nell'annuncio...) alle 18 presso la Sala delle Adunanze dell'Istituto Lombardo nel Palazzo Brera sito in via Brera 28 (Milano), si terrà la conferenza La fisica delle particelle e il Large Hadron Collider: recenti sviluppi e questioni aperte: Cristina Lazzeroni ci introdurrà alla fisica delle particelle e agli studi fatti al Large Hadron Collider del Cern di Ginevra mettendo l’accento su recenti sviluppi come la
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Aad G., J. Abdallah, S. Abdel Khalek, O. Abdinov, R. Aben, B. Abi, S. H. Abidi, M. Abolins, O. S. AbouZeid & H. Abramowicz & (2014). Measurement of the Higgs boson mass from the $H\to \gamma \gamma $ and $H\to Z{Z}^{*}\to 4\ell $ channels in $pp$ collisions at center-of-mass energies of 7 and 8 TeV with the ATLAS detector, Physical Review D, 90 (5) DOI: http://dx.doi.org/10.1103/physrevd.90.052004

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NISSSAMSI tweeted: @NISSSAMSI

2015-05-29 15:40:21

ricardosaenz tweeted: @ricardosaenz

"It would be dangerous to assume linearity of a real bungee jumping cord and make calculations on this basis." https://t.co/S70dJly5Hw

2015-05-29 15:33:10

MathProjects tweeted: @MathProjects

Grading for Success with The Leona Group, in AZ today. @steve_leinwand @karimkai @ddmeyer http://t.co/GxW7QGpozx

2015-05-29 15:09:31

freakonometrics tweeted: @freakonometrics

"Bref je suis un prof" https://t.co/QLaQqtYVyH

2015-05-29 15:08:40

freakonometrics tweeted: @freakonometrics

"les rues de Paris ne sont plus sûres..." http://t.co/OSusx1JSai comme disait https://t.co/ts0LHHCwQ9

2015-05-29 15:05:24

gaussianos tweeted: @gaussianos

Sus amigos - #AntologíaGaussiana http://t.co/HUBkDU8tgM

2015-05-29 15:00:06

DrMathochist tweeted: @DrMathochist

SAN ANDREAS is a disaster, but everyone knows that going in. My review: http://t.co/ms9cNdR7Jr

2015-05-29 14:59:50

ProfNoodlearms tweeted: @ProfNoodlearms

RT @davidwees: "Formative assessment helps the student assess themselves." via @NJAMTE #elemmathchat #mathchat

2015-05-29 14:58:52

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