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"published_at": "2016-11-16T23:56:38+00:00" }, { "id": "01a0c546-ec57-7349-ba79-d787a193592f", "title": "Crossword rundown", "url": "https://gottwurfelt.com/2016/11/15/crossword-rundown/", "published_at": "2016-11-16T02:24:49+00:00" }, { "id": "01a0c54f-b245-71a4-8f24-37ba65dc5f66", "title": "One-fifth of Americans what?", "url": "https://gottwurfelt.com/2016/11/06/one-fifth-of-americans-what/", "published_at": "2016-11-06T22:04:30+00:00" }, { "id": "01a0c54f-b245-71a4-8f24-37ba664c8636", "title": "Sunset times on Halloween for major cities", "url": "https://gottwurfelt.com/2016/10/31/sunset-times-on-halloween-for-major-cities/", "published_at": "2016-11-01T00:04:03+00:00" }, { "id": "01a0c54f-b245-71a4-8f24-37ba66617c97", "title": "Sunset’s too late on Halloween", "url": "https://gottwurfelt.com/2016/10/31/sunsets-too-late-on-halloween/", "published_at": "2016-11-01T00:03:18+00:00" }, { "id": "01a0c54f-b245-71a4-8f24-37ba667ee7a8", "title": "Ulam, von Neumann, and Monte Carlo", "url": "https://gottwurfelt.com/2016/10/25/ulam-von-neumann-and-monte-carlo/", "published_at": "2016-10-26T00:18:44+00:00" }, { "id": "01a0c54f-b245-71a4-8f24-37ba670bf5b3", "title": "A big move at FiveThirtyEight", "url": "https://gottwurfelt.com/2016/10/24/a-big-move-at-fivethirtyeight/", "published_at": "2016-10-24T23:49:17+00:00" }, { "id": "01a0c54f-b245-71a4-8f24-37ba67456bb7", "title": "Beautiful edition of the Principia", "url": "https://gottwurfelt.com/2016/10/22/beautiful-edition-of-the-principia/", "published_at": "2016-10-22T20:05:24+00:00" }, { "id": "01a0c54f-b245-71a4-8f24-37ba67e9123f", "title": "Roundup of the poll aggregators", "url": "https://gottwurfelt.com/2016/10/19/roundup-of-the-poll-aggregators/", "published_at": "2016-10-19T21:13:46+00:00" }, { "id": "01a0c54f-b245-71a4-8f24-37ba688a25c9", "title": "Hamilton Day", "url": "https://gottwurfelt.com/2016/10/16/hamilton-day/", "published_at": "2016-10-16T21:01:24+00:00" }, { "id": "01a0c54f-b245-71a4-8f24-37ba694d447c", "title": "Applied circle packing ", "url": "https://gottwurfelt.com/2016/10/15/applied-circle-packing/", "published_at": "2016-10-15T23:38:57+00:00" }, { "id": "01a0c54f-b245-71a4-8f24-37ba6a3075de", "title": "Voting", "url": "https://gottwurfelt.com/2016/10/11/voting/", "published_at": "2016-10-11T22:18:05+00:00" }, { "id": "01a0c557-e0b9-7296-88fd-5d990dcaba01", "title": "Links for February 22", "url": "https://gottwurfelt.com/2016/02/22/links-for-february-22/", "published_at": "2016-02-23T01:52:09+00:00" }, { "id": "01a0c557-e0b9-7296-88fd-5d990ea7127a", "title": "How many shuffles suffice in Nevada?", "url": "https://gottwurfelt.com/2016/02/18/how-many-shuffles-suffice-in-nevada/", "published_at": "2016-02-18T12:56:16+00:00" }, { "id": "01a0c557-e0b9-7296-88fd-5d990ee47adf", "title": "Super Bowl babies don’t exist", "url": "https://gottwurfelt.com/2016/02/12/super-bowl-babies-dont-exist/", "published_at": "2016-02-12T13:00:34+00:00" }, { "id": "01a0c557-e0b9-7296-88fd-5d990fc3dbbc", "title": "Links for February 8", "url": "https://gottwurfelt.com/2016/02/08/links-for-february-8/", "published_at": "2016-02-08T13:56:51+00:00" }, { "id": "01a0c557-e0b9-7296-88fd-5d99105f17aa", "title": "Do Super Bowl babies exist?", "url": "https://gottwurfelt.com/2016/02/07/do-super-bowl-babies-exist/", "published_at": "2016-02-08T01:24:25+00:00" }, { "id": "01a0c557-e0b9-7296-88fd-5d9910a9c142", "title": "Super Bowl squares with other moduli", "url": "https://gottwurfelt.com/2016/02/06/super-bowl-squares-with-other-moduli/", "published_at": "2016-02-06T17:32:24+00:00" }, { "id": "01a0c557-e0b9-7296-88fd-5d9910f934b2", "title": "Links for February 1", "url": "https://gottwurfelt.com/2016/02/01/links-for-february-1/", "published_at": "2016-02-01T23:31:31+00:00" }, { "id": "01a0c557-e0b9-7296-88fd-5d99117b64c9", "title": "Thue-Morse and fair sharing", "url": "https://gottwurfelt.com/2016/01/29/thue-morse-and-fair-sharing/", "published_at": "2016-01-30T01:00:00+00:00" }, { "id": "01a0c557-e0b9-7296-88fd-5d99124f0558", "title": "Strings of digits, Mersenne primes", "url": "https://gottwurfelt.com/2016/01/28/strings-of-digits-mersenne-primes/", "published_at": "2016-01-29T01:55:16+00:00" }, { "id": "01a0c557-e0ba-706b-a660-427c3d78dcb8", "title": "January 25 links", "url": "https://gottwurfelt.com/2016/01/25/january-25-links/", "published_at": "2016-01-25T13:45:03+00:00" }, { "id": "01a0c560-303b-72e9-a6f7-5aaceef1876c", "title": "Open Syllabus Project", "url": "https://gottwurfelt.com/2016/01/22/open-syllabus-project/", "published_at": "2016-01-22T22:35:53+00:00" }, { "id": "01a0c560-303b-72e9-a6f7-5aaceef5d006", "title": "Snow day?", "url": "https://gottwurfelt.com/2016/01/21/1889/", "published_at": "2016-01-21T13:00:00+00:00" }, { "id": "01a0c560-303b-72e9-a6f7-5aacef1ecf9b", "title": "We’re number one!", "url": "https://gottwurfelt.com/2016/01/20/1885/", "published_at": "2016-01-21T02:43:58+00:00" }, { "id": "01a0c560-303b-72e9-a6f7-5aacefb7eef1", "title": "Links for January 18", "url": "https://gottwurfelt.com/2016/01/18/links-for-january-18/", "published_at": "2016-01-18T13:22:00+00:00" }, { "id": "01a0c560-303b-72e9-a6f7-5aacf02b8405", "title": "Links for January 11", "url": "https://gottwurfelt.com/2016/01/11/links-for-january-11/", "published_at": "2016-01-11T23:48:27+00:00" }, { "id": "01a0c560-303b-72e9-a6f7-5aacf0326b08", "title": "Logarithmic approximations for Collatz", "url": "https://gottwurfelt.com/2016/01/10/logarithmic-approximations-for-collatz/", "published_at": "2016-01-10T15:00:00+00:00" }, { "id": "01a0c560-303b-72e9-a6f7-5aacf111aac9", "title": "Powerball", "url": "https://gottwurfelt.com/2016/01/09/powerball/", "published_at": "2016-01-10T03:07:47+00:00" }, { "id": "01a0c560-303b-72e9-a6f7-5aacf15281b3", "title": "Relatively Prime season 2", "url": "https://gottwurfelt.com/2016/01/07/relatively-prime-season-2/", "published_at": "2016-01-08T03:40:52+00:00" }, { "id": "01a0c560-303b-72e9-a6f7-5aacf17b974d", "title": "Links for January 4", "url": "https://gottwurfelt.com/2016/01/04/links-for-january-4-2/", "published_at": "2016-01-04T13:00:41+00:00" }, { "id": "01a0c560-303b-72e9-a6f7-5aacf1a06d0c", "title": "Some properties of 2016", "url": "https://gottwurfelt.com/2016/01/01/some-properties-of-2016/", "published_at": "2016-01-01T17:00:00+00:00" } ] posts Claim your blog

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2025

Halfway original ↗

9 Dec 2025

YOU get a leap year! And YOU get a leap year!original ↗

1 Mar 2025

Two bits of inauguration math original ↗

20 Jan 2025

2023

Morrie’s law plus one original ↗

17 Jun 2023

Translate “ELEVEN PLUS TWO = TWELVE PLUS ONE” into Spanish original ↗

23 May 2023

Percentage of songs with parentheses in the title original ↗

10 Jan 2023

2022

Is Hanukkah’s new moon always the darkest one?original ↗

19 Dec 2022

Four points is not enough – the enumerative version original ↗

29 Nov 2022

Press will buzz off, or, doubled letters at the ends of words original ↗

27 Nov 2022

Four points is not enough original ↗

21 Nov 2022

When do the polls close for most people?original ↗

8 Nov 2022

Does Game 3 have some special magic?original ↗

3 Nov 2022

How many states are south of Mexico?original ↗

23 Sept 2022

What are you trying to optimize in Wordle?original ↗

9 Aug 2022

Why is a euro close to a dollar?original ↗

16 Jul 2022

Rolling the dice original ↗

14 Mar 2022

2021

Expected number of all-Confederate World Series original ↗

27 Oct 2021

Which countries are better at the Winter Olympics than the Summer Olympics?original ↗

16 Oct 2021

Products equaling sums original ↗

28 Jun 2021

Two dice problems original ↗

18 Apr 2021

Rational approximations of logs of small primes original ↗

24 Mar 2021

Objects in my house with icosahedral symmetry original ↗

27 Feb 2021

STOP POTS POST. SPOT OPTS TOPS.original ↗

12 Feb 2021

How many borders between states are there in the United States?original ↗

23 Jan 2021

Riddler: a grid of numbers original ↗

19 Jan 2021

Critiquing some coronavirus maps original ↗

11 Jan 2021

364 gifts original ↗

8 Jan 2021

A couple tidbits of Georgia election math original ↗

5 Jan 2021

2021 original ↗

1 Jan 2021

2020

Applied circle packing original ↗

27 Dec 2020

Merry Christmas, y’all original ↗

25 Dec 2020

44 candles original ↗

16 Dec 2020

Difference of cubes original ↗

9 Dec 2020

Another odd crossword clue original ↗

29 Oct 2020

Two-thirds of all Fibonacci numbers are…original ↗

28 Oct 2020

Which party will be president if there’s a 50-50 Senate?original ↗

20 Oct 2020

Zip codes divide the country original ↗

12 Oct 2020

Figuring out when a book was written from the names in it original ↗

9 Oct 2020

Sixth notes original ↗

4 Oct 2020

Another baseball inequality original ↗

2 Oct 2020

Would the 2016 US presidential election result be different if the Electoral College were bigger?original ↗

23 Sept 2020

Balancing the centrifuge – a Riddler puzzle original ↗

21 Sept 2020

Rainbow cats considered harmful original ↗

14 Sept 2020

Twenty-nine original ↗

1 Sept 2020

The second derivative I compute every day original ↗

29 Aug 2020

How many pieces can a puzzle have?original ↗

17 Aug 2020

Will the rest of the hurricane season be worse?original ↗

30 Jul 2020

Double (or triple) and sort original ↗

19 Jul 2020

How full is the pool?original ↗

6 Jul 2020

The smallest non-obvious composite original ↗

30 Jun 2020

2017

A tale of zloty and forint original ↗

4 Aug 2017

The riddle of the number chain original ↗

30 Jul 2017

Picturing math original ↗

11 Mar 2017

Do people on busier roads get more yard signs?original ↗

11 Mar 2017

A sequence of Fibonacci facts original ↗

14 Feb 2017

Another Trump dump original ↗

1 Feb 2017

11:57:30 original ↗

27 Jan 2017

Statistics and damned lies original ↗

20 Jan 2017

Luck original ↗

15 Jan 2017

Math for humans original ↗

10 Jan 2017

A calendar puzzle with some wrinkles original ↗

9 Jan 2017

How dangerous was 2016?original ↗

7 Jan 2017

2016

I made it out of clay original ↗

14 Dec 2016

After this year, I can always divide my life into triangles original ↗

10 Dec 2016

Time zones and election turnout original ↗

7 Dec 2016

How to flip an election original ↗

30 Nov 2016

Dressing goes on salad original ↗

23 Nov 2016

Use R, vote D?original ↗

17 Nov 2016

A proof that π < 22/7 original ↗

16 Nov 2016

Crossword rundown original ↗

16 Nov 2016

One-fifth of Americans what?original ↗

6 Nov 2016

Sunset times on Halloween for major cities original ↗

1 Nov 2016

Sunset’s too late on Halloween original ↗

1 Nov 2016

Ulam, von Neumann, and Monte Carlo original ↗

26 Oct 2016

A big move at FiveThirtyEight original ↗

24 Oct 2016

Beautiful edition of the Principia original ↗

22 Oct 2016

Roundup of the poll aggregators original ↗

19 Oct 2016

Hamilton Day original ↗

16 Oct 2016

Applied circle packing original ↗

15 Oct 2016

Voting original ↗

11 Oct 2016

Links for February 22 original ↗

23 Feb 2016

How many shuffles suffice in Nevada?original ↗

18 Feb 2016

Super Bowl babies don’t exist original ↗

12 Feb 2016

Links for February 8 original ↗

8 Feb 2016

Do Super Bowl babies exist?original ↗

8 Feb 2016

Super Bowl squares with other moduli original ↗

6 Feb 2016

Links for February 1 original ↗

1 Feb 2016

Thue-Morse and fair sharing original ↗

30 Jan 2016

Strings of digits, Mersenne primes original ↗

29 Jan 2016

January 25 links original ↗

25 Jan 2016

Open Syllabus Project original ↗

22 Jan 2016

Snow day?original ↗

21 Jan 2016

We’re number one!original ↗

21 Jan 2016

Links for January 18 original ↗

18 Jan 2016

Links for January 11 original ↗

11 Jan 2016

Logarithmic approximations for Collatz original ↗

10 Jan 2016

Powerball original ↗

10 Jan 2016

Relatively Prime season 2 original ↗

8 Jan 2016

Links for January 4 original ↗

4 Jan 2016

Some properties of 2016 original ↗

1 Jan 2016