Chronotope @Chrntp

Math, Science and Data Joined June 2020

Tweets

38
Followers

16
Following

638
Likes

792

Ethan Mollick @emollick

3 years ago

The internet ruined homework which hurt test scores. When students did their homework in 2008, it improved test grades for 86% of them, but only helped 45% in 2017. Why? A majority of students are now copying internet answers. The benefit of homework requires doing it yourself!

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Massimo @Rainmaker1973

3 years ago

Richard Feynman's Lectures on Physics are timeless: their main strength is in demonstrating how to reason about physics. You may not know all the lectures are completely online: Volume 1: feynmanlectures.caltech.edu/I_toc.html Volume 2: feynmanlectures.caltech.edu/II_toc.html Volume 3: feynmanlectures.caltech.edu/III_toc.html

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Mark Tenenholtz @marktenenholtz

4 years ago

I spent 500+ hours on Kaggle competitions last year and just became a Kaggle Master. Over those many hours, I learned a systematic process you can use to train any model on any dataset. 6 steps to train any model 🧵

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Steven Strogatz @stevenstrogatz

4 years ago

"What is good mathematics?" A 2007 preprint by Terry Tao that starts with accessible and interesting general considerations, and then goes deep into a fascinating mathematical story in which Tao himself (and @wtgowers and others) made important contributions.

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IM—1776 @im_1776

4 years ago

"Teaching has always been viewed by some as a ‘default profession’. Ten years prior I might have argued with them. Today I will agree with them. Many teachers are in the profession because they would not cut it elsewhere." — Dan Simons im1776.com/2021/12/28/we-…

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Sheldon Axler @AxlerLinear

4 years ago

Today the videos that I made to accompany my book Linear Algebra Done Right surpassed two million minutes of total viewing on YouTube. Those videos are freely available from the links at linear.axler.net/LADRvideos.html. #LinearAlgebra

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Ethan Mollick @emollick

4 years ago

Sorry for bad news, economists: “our results suggest that LaTeX reduces the user’s productivity and results in more orthographical, grammatical, and formatting errors, more typos, and less written text than Microsoft Word over the same duration of time.” journals.plos.org/plosone/articl…

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Easlo @heyeaslo

4 years ago

Twitter is free university. But 98.8% don’t follow the right people. Here are 10 educators you must follow:

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Dave Richeson @divbyzero

4 years ago

When I was a kid I used to make this sketch: connect (1,0) to (0,10), (2,0) to (0,9), etc. I thought it was cool that these straight lines had a curved boundary. Now I know that this curve is called the *envelope* of the family of lines. What is this curve? 1/7

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Nikita Lisitsa @lisyarus

4 years ago

I've learnt about logistic regression and decided to implement it as an interactive online tool: lisyarus.github.io/webgl/classifi…. You can add points, move them around, and change the regression order!

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soft @soft

4 years ago

The Google search summary vs the actual page

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Jeremy @HandwavingComic

4 years ago

Groups

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Incunabula @incunabula

4 years ago

European civilization is built on ham and cheese, which allowed protein to be stored throughout the icy winters. Without this, urban societies in most of central Europe would simply not have been possible. This is also why we have hardback books. Here's why. 1/

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Tungsteno @74WTungsteno

4 years ago

Does anybody know an elementary proof of Villarceau's Theorem?? bit.ly/32fvmId (from Dimensions: A Walk through Mathematics) #math #science #iteachmath #mtbos #visualization #elearning #geometry

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Fermat's Library @fermatslibrary

4 years ago

In 1976, Ray Redheffer proved that this "elementary" question about matrices of 0s and 1s is equivalent to the Reimann Hypothesis. The Reimann Hypothesis is true if an only if det(A)= 𝒪(n¹ᴵ²⁺ᵟ) for each δ>0