Benjamin Cornish
@mathematicians-pod.bsky.social
Teacher. Mathematician. Podcaster
Pinned
The Mathematicians Podcast | Ben Cornish
Where we explore the historical figures that count. An in-depth look at the history of mathematics, in chronological order, looking at the people, the theories, the ideas - with as fewer gaps as possi...
mathematicians.podbean.com
Hi Blue Sky,
I've been putting together a little podcast on Maths History, following The Mathematicians of old.
I'd be honoured if you'd listen along at mathematicians.podbean.com
I've been putting together a little podcast on Maths History, following The Mathematicians of old.
I'd be honoured if you'd listen along at mathematicians.podbean.com
A person on #Reddit asked if one person could survive an apocalypse with only the contents of a supermarket for the rest of their lives (ignoring expiry dates)
What was the last #FermiApproximation you did ?
#mathsky
#mathstalk
What was the last #FermiApproximation you did ?
#mathsky
#mathstalk
November 21, 2025 at 4:04 PM
A person on #Reddit asked if one person could survive an apocalypse with only the contents of a supermarket for the rest of their lives (ignoring expiry dates)
What was the last #FermiApproximation you did ?
#mathsky
#mathstalk
What was the last #FermiApproximation you did ?
#mathsky
#mathstalk
If you format your LaTex equations using £\text{pounds}£ instead of $\text{dollars}$, then they are 32% more correct in the current exchange market.
November 17, 2025 at 3:12 PM
If you format your LaTex equations using £\text{pounds}£ instead of $\text{dollars}$, then they are 32% more correct in the current exchange market.
I've been watching old episodes of Mr Bean with my daughter. The physical comedy is timeless, but it's really hard to explain the context of what life was like in the 90s.
November 15, 2025 at 1:01 PM
I've been watching old episodes of Mr Bean with my daughter. The physical comedy is timeless, but it's really hard to explain the context of what life was like in the 90s.
November 13, 2025 at 10:01 PM
oeis.org/A390487
My second sequence just dropped!
Numbers k with the property that k is the next number that cannot be expressed as a linear sum of the squares of any of the preceding terms
Very happy with that.
1, 2, 6, 7, 11, 15, 21, 25, 61, 106, 142, 155, 515, 551, 36208...
#mathsky
#oeis
My second sequence just dropped!
Numbers k with the property that k is the next number that cannot be expressed as a linear sum of the squares of any of the preceding terms
Very happy with that.
1, 2, 6, 7, 11, 15, 21, 25, 61, 106, 142, 155, 515, 551, 36208...
#mathsky
#oeis
A390487 - OEIS
oeis.org
November 13, 2025 at 6:34 PM
oeis.org/A390487
My second sequence just dropped!
Numbers k with the property that k is the next number that cannot be expressed as a linear sum of the squares of any of the preceding terms
Very happy with that.
1, 2, 6, 7, 11, 15, 21, 25, 61, 106, 142, 155, 515, 551, 36208...
#mathsky
#oeis
My second sequence just dropped!
Numbers k with the property that k is the next number that cannot be expressed as a linear sum of the squares of any of the preceding terms
Very happy with that.
1, 2, 6, 7, 11, 15, 21, 25, 61, 106, 142, 155, 515, 551, 36208...
#mathsky
#oeis
Don't forget to support this great maths book, if you want more fiction adventures that incorporate abstract maths... #MathFi ?
Every child has a math story to tell. Let's inspire them! In the next two weeks, help spread the word about "Modultown!" to send this amazing Creative Commons book to more families and classrooms. >110% funded - THANK YOU! Reaching for the first stretch goal now. Tell a friend! #iTeachMath #MathSky
Modultown! A Math-Inspired Children's Book
Experience a whimsical puzzle hunt in a new fantastic world full of friendship and surprises, from the authors of Funville Adventures
kck.st
November 12, 2025 at 5:39 PM
Don't forget to support this great maths book, if you want more fiction adventures that incorporate abstract maths... #MathFi ?
Very happy to share today's episode of #TheMathematiciansPodcast
Want to know what is so special about the #HagaSophia, then listen in as we discuss the mathematicians who designed it. Alongside this, a tale of a nearly lost work by #Archimedes
www.podbean.com/eas/pb-44w8b...
#mathstalk
#mathsky
Want to know what is so special about the #HagaSophia, then listen in as we discuss the mathematicians who designed it. Alongside this, a tale of a nearly lost work by #Archimedes
www.podbean.com/eas/pb-44w8b...
#mathstalk
#mathsky
Episode 47 - Isidorus of Miletus - Build it, and they will come
This week, we bridge the gap between Alexandria and Constantinople with Isidorus of Miletus, a mathematician and architect who preferred teaching to writing. We look into how he and his partner, Anthe...
www.podbean.com
November 12, 2025 at 3:28 PM
Very happy to share today's episode of #TheMathematiciansPodcast
Want to know what is so special about the #HagaSophia, then listen in as we discuss the mathematicians who designed it. Alongside this, a tale of a nearly lost work by #Archimedes
www.podbean.com/eas/pb-44w8b...
#mathstalk
#mathsky
Want to know what is so special about the #HagaSophia, then listen in as we discuss the mathematicians who designed it. Alongside this, a tale of a nearly lost work by #Archimedes
www.podbean.com/eas/pb-44w8b...
#mathstalk
#mathsky
I am absolutely buzzing following the publication of my very first OEIS sequence.
oeis.org/A389751
Numbers k such that k^3 can be represented as the sum of k consecutive nonprimes.
Eg
a(3) = 9^3 = 76+77+78+80+81+82+84+85+86
Only the first 16 numbers found so far, so please come and add more!
oeis.org/A389751
Numbers k such that k^3 can be represented as the sum of k consecutive nonprimes.
Eg
a(3) = 9^3 = 76+77+78+80+81+82+84+85+86
Only the first 16 numbers found so far, so please come and add more!
A389751 - OEIS
oeis.org
November 12, 2025 at 1:42 PM
I am absolutely buzzing following the publication of my very first OEIS sequence.
oeis.org/A389751
Numbers k such that k^3 can be represented as the sum of k consecutive nonprimes.
Eg
a(3) = 9^3 = 76+77+78+80+81+82+84+85+86
Only the first 16 numbers found so far, so please come and add more!
oeis.org/A389751
Numbers k such that k^3 can be represented as the sum of k consecutive nonprimes.
Eg
a(3) = 9^3 = 76+77+78+80+81+82+84+85+86
Only the first 16 numbers found so far, so please come and add more!
I just had a letter box delivered... Which uses up my irony budget for the week.
November 4, 2025 at 1:57 PM
I just had a letter box delivered... Which uses up my irony budget for the week.
Just this year's quince harvest.
October 23, 2025 at 2:52 PM
Just this year's quince harvest.
Talking to my 3-year-old another day:
"We played the floor is lava today"
(Ooh a teaching moment)
"Oh right, and what is lava?"
...
"The floor"
Well played Lily, you out smarted me.
"We played the floor is lava today"
(Ooh a teaching moment)
"Oh right, and what is lava?"
...
"The floor"
Well played Lily, you out smarted me.
October 22, 2025 at 5:37 PM
Talking to my 3-year-old another day:
"We played the floor is lava today"
(Ooh a teaching moment)
"Oh right, and what is lava?"
...
"The floor"
Well played Lily, you out smarted me.
"We played the floor is lava today"
(Ooh a teaching moment)
"Oh right, and what is lava?"
...
"The floor"
Well played Lily, you out smarted me.
I had another delightful maths moment with @hopeiona.bsky.social, where we talked at length on the nature of #infinity. If you'd like to listen in then you can find our interview here.
From ancient history to ZFCs.
www.podbean.com/eas/pb-f4xei-199b19d
#TheMathematiciansPodcast
#MathsTalk
#Mathsky
From ancient history to ZFCs.
www.podbean.com/eas/pb-f4xei-199b19d
#TheMathematiciansPodcast
#MathsTalk
#Mathsky
Episode 44 - The Injectives with Hope Duncan - On Infinity
This week on The Mathematician's Podcast, we take a break from the philosophical and theological debates of the past to chat with an intellectual heavyweight of our own age! In another special "Inject...
www.podbean.com
October 22, 2025 at 7:36 AM
I had another delightful maths moment with @hopeiona.bsky.social, where we talked at length on the nature of #infinity. If you'd like to listen in then you can find our interview here.
From ancient history to ZFCs.
www.podbean.com/eas/pb-f4xei-199b19d
#TheMathematiciansPodcast
#MathsTalk
#Mathsky
From ancient history to ZFCs.
www.podbean.com/eas/pb-f4xei-199b19d
#TheMathematiciansPodcast
#MathsTalk
#Mathsky
It turns out it's really hard to draw #Isometric paper by hand.
My teacher always told me I wouldn't walk around with a protractor in my pocket, and it turns out she was right.
In other news, I might have discovered a new #OEIS
Spoiler: 1, 6, 18, 45, 87
#mathsky
My teacher always told me I wouldn't walk around with a protractor in my pocket, and it turns out she was right.
In other news, I might have discovered a new #OEIS
Spoiler: 1, 6, 18, 45, 87
#mathsky
October 21, 2025 at 5:50 PM
It turns out it's really hard to draw #Isometric paper by hand.
My teacher always told me I wouldn't walk around with a protractor in my pocket, and it turns out she was right.
In other news, I might have discovered a new #OEIS
Spoiler: 1, 6, 18, 45, 87
#mathsky
My teacher always told me I wouldn't walk around with a protractor in my pocket, and it turns out she was right.
In other news, I might have discovered a new #OEIS
Spoiler: 1, 6, 18, 45, 87
#mathsky
I do love it when I am browsing the #OEIS and I find a comment that was within the last few weeks. Oddly titillating to know that someone else passed this way so recently.
oeis.org/A011545
#mathsky
oeis.org/A011545
#mathsky
October 20, 2025 at 8:12 PM
I do love it when I am browsing the #OEIS and I find a comment that was within the last few weeks. Oddly titillating to know that someone else passed this way so recently.
oeis.org/A011545
#mathsky
oeis.org/A011545
#mathsky
It's Out! Episode 6 of #Un-NaturalNumbers the Maths Chat Show.
I had such a great time learning all about the number 6 with Sasha, Allison and Tomas.
Want to hear about centred hexagons, Ramsey Theory, Triangular Numbers and ice? Watch now!
#TalkingMaths
#MathsChat
#Mathsky
youtu.be/Skugo8lB-xA
I had such a great time learning all about the number 6 with Sasha, Allison and Tomas.
Want to hear about centred hexagons, Ramsey Theory, Triangular Numbers and ice? Watch now!
#TalkingMaths
#MathsChat
#Mathsky
youtu.be/Skugo8lB-xA
Un-Natural Numbers: Episode 6 - Centred Hexagonals, Ramsey Theory, Triangular Numbers, Giants & Ice
YouTube video by Un-Natural Numbers
youtu.be
October 15, 2025 at 7:09 PM
It's Out! Episode 6 of #Un-NaturalNumbers the Maths Chat Show.
I had such a great time learning all about the number 6 with Sasha, Allison and Tomas.
Want to hear about centred hexagons, Ramsey Theory, Triangular Numbers and ice? Watch now!
#TalkingMaths
#MathsChat
#Mathsky
youtu.be/Skugo8lB-xA
I had such a great time learning all about the number 6 with Sasha, Allison and Tomas.
Want to hear about centred hexagons, Ramsey Theory, Triangular Numbers and ice? Watch now!
#TalkingMaths
#MathsChat
#Mathsky
youtu.be/Skugo8lB-xA
I try to teach my students to leave their assumptions at the door, which is not going well with our topic of "Proof by Induction"
#mathsky
#mathsjokes
#mathsky
#mathsjokes
October 15, 2025 at 11:16 AM
I try to teach my students to leave their assumptions at the door, which is not going well with our topic of "Proof by Induction"
#mathsky
#mathsjokes
#mathsky
#mathsjokes
John Philoponus just dropped, over on #TheMathematiciansPodcast.
If you want to discuss infinity, momentum and Christian theology, then tune in to this week's episode.
www.podbean.com/ew/pb-p2aea-...
#TalkingMaths
#Mathshistory
#mathsky
If you want to discuss infinity, momentum and Christian theology, then tune in to this week's episode.
www.podbean.com/ew/pb-p2aea-...
#TalkingMaths
#Mathshistory
#mathsky
Episode 43 - John Philoponus - To infinity and stopping
Welcome back to The Mathematicians Podcast! This episode introduces our first "John" – John Philoponus, also known as John the Grammarian or John of Alexandria. This Christian theologian, philosopher,...
www.podbean.com
October 15, 2025 at 6:50 AM
John Philoponus just dropped, over on #TheMathematiciansPodcast.
If you want to discuss infinity, momentum and Christian theology, then tune in to this week's episode.
www.podbean.com/ew/pb-p2aea-...
#TalkingMaths
#Mathshistory
#mathsky
If you want to discuss infinity, momentum and Christian theology, then tune in to this week's episode.
www.podbean.com/ew/pb-p2aea-...
#TalkingMaths
#Mathshistory
#mathsky
I'm not sure how I'm feeling about "Sandals in October" I'm getting cold feet.
October 14, 2025 at 7:23 PM
I'm not sure how I'm feeling about "Sandals in October" I'm getting cold feet.
I just backed Modultown! A Math-Inspired Children's Book on @kickstarter.com www.kickstarter.com/projects/nat...
I had great fun talking to the Authors on a recent episode of #Un-NaturalNumbers, really looking forward to receiving my book.
Watch this space for video links.
#talkingmaths
#mathsky
I had great fun talking to the Authors on a recent episode of #Un-NaturalNumbers, really looking forward to receiving my book.
Watch this space for video links.
#talkingmaths
#mathsky
Modultown! A Math-Inspired Children's Book
Experience a whimsical puzzle hunt in a new fantastic world full of friendship and surprises, from the authors of Funville Adventures
www.kickstarter.com
October 14, 2025 at 4:54 PM
I just backed Modultown! A Math-Inspired Children's Book on @kickstarter.com www.kickstarter.com/projects/nat...
I had great fun talking to the Authors on a recent episode of #Un-NaturalNumbers, really looking forward to receiving my book.
Watch this space for video links.
#talkingmaths
#mathsky
I had great fun talking to the Authors on a recent episode of #Un-NaturalNumbers, really looking forward to receiving my book.
Watch this space for video links.
#talkingmaths
#mathsky
I just had an absolutely delightful afternoon talking about #infinity with @hopeiona.bsky.social, for a special episode of #TheMathematiciansPodcast.
Tune in next Wednesday to hear about the history and the now of infinity.
#talkingmaths
#mathsky
#mathshistory
Tune in next Wednesday to hear about the history and the now of infinity.
#talkingmaths
#mathsky
#mathshistory
October 14, 2025 at 3:14 PM
I just had an absolutely delightful afternoon talking about #infinity with @hopeiona.bsky.social, for a special episode of #TheMathematiciansPodcast.
Tune in next Wednesday to hear about the history and the now of infinity.
#talkingmaths
#mathsky
#mathshistory
Tune in next Wednesday to hear about the history and the now of infinity.
#talkingmaths
#mathsky
#mathshistory
My wife asked me if these two lines will intersect in 3D space. I said, I'm the maths teacher, so I will ask "-ew"
In other news, I'm sleeping on the sofa again.
#mathsjokes
In other news, I'm sleeping on the sofa again.
#mathsjokes
October 14, 2025 at 1:03 PM
My wife asked me if these two lines will intersect in 3D space. I said, I'm the maths teacher, so I will ask "-ew"
In other news, I'm sleeping on the sofa again.
#mathsjokes
In other news, I'm sleeping on the sofa again.
#mathsjokes
Word of the day: Vinculum - The line used in a fraction.
Joke of the day: There's a fine line between a numerator and a denominator.
#mathsky
#mathsjokes
Joke of the day: There's a fine line between a numerator and a denominator.
#mathsky
#mathsjokes
October 13, 2025 at 11:19 AM
Word of the day: Vinculum - The line used in a fraction.
Joke of the day: There's a fine line between a numerator and a denominator.
#mathsky
#mathsjokes
Joke of the day: There's a fine line between a numerator and a denominator.
#mathsky
#mathsjokes
Another lovely night playing "conservation of energy" with my daughter. The box says 8+ but I would easily give it a 10/10.
#mathsbuild
#classicalmechanics
#mathstoys
#mathsbuild
#classicalmechanics
#mathstoys
October 10, 2025 at 7:05 PM
Another lovely night playing "conservation of energy" with my daughter. The box says 8+ but I would easily give it a 10/10.
#mathsbuild
#classicalmechanics
#mathstoys
#mathsbuild
#classicalmechanics
#mathstoys
For any polygon, the maximum number of diagonals that can intersect at a point (that is not the centre) is 7.
#mathsart
#mathsky
Possibly my fact for episode 7 of #Un-NaturalNumbers
math.mit.edu/~poonen/pape...
#mathsart
#mathsky
Possibly my fact for episode 7 of #Un-NaturalNumbers
math.mit.edu/~poonen/pape...
October 10, 2025 at 6:00 PM
For any polygon, the maximum number of diagonals that can intersect at a point (that is not the centre) is 7.
#mathsart
#mathsky
Possibly my fact for episode 7 of #Un-NaturalNumbers
math.mit.edu/~poonen/pape...
#mathsart
#mathsky
Possibly my fact for episode 7 of #Un-NaturalNumbers
math.mit.edu/~poonen/pape...
I'm misplacing loads of my model railway - I just can't keep track
October 8, 2025 at 7:17 PM
I'm misplacing loads of my model railway - I just can't keep track