All posts by Sam Hartburn

About Sam Hartburn

Sam offers proofreading, copy-editing and answer checking for maths textbooks and digital resources at all levels and for popular and recreational maths books and content. Find out more at www.qbfproofreading.co.uk. Follow her on Twitter at @SamHartburn or find her on LinkedIn.

#DigitalGeometrySketchbook Days 11 to 20

Throughout the month of June 2021 I created a daily maths art piece, each one using different software or different techniques, as part of the #GeometrySketchbook challenge on Twitter. As mine was all digital artwork, I used the #DigitalGeometrySketchbook tag. Here are the results of days 11 to 20.

Continue reading #DigitalGeometrySketchbook Days 11 to 20
Flower of life made of 7 overlapping circles, each section coloured with a different colour combination/pattern.

#DigitalGeometrySketchbook Days 1 to 10

Throughout the month of June 2021 I created a daily maths art piece, each one using different software or different techniques, as part of the #GeometrySketchbook challenge on Twitter. As mine was all digital artwork, I used the #DigitalGeometrySketchbook tag. Here are the results of days 1 to 10.

Continue reading #DigitalGeometrySketchbook Days 1 to 10

Can You Sing Two Notes at Once?

And what does that have to do with maths?

A little while ago, Abs Pascoe (who I highly recommend if you’re thinking of starting singing lessons and you happen to live near Whitstable) posted this amazing video where she sings two different notes at once. I had never heard anything like it before! My first thought was that it was some kind of dark magic. My second thought was that there must be some interesting maths going on there.

Continue reading Can You Sing Two Notes at Once?
Pythagorean spiral with each triangle filled with pursuit curves

Pythagorean Spiral meets Pursuit Curves: Sunday Maths Animations Week 8

Earlier this week I was proofreading a book that mentioned Pythagorean spirals. I had seen them before but never thought about them too deeply, so I gave them a try in GeoGebra. I filled them in with curves of pursuit, just for fun!

Continue reading Pythagorean Spiral meets Pursuit Curves: Sunday Maths Animations Week 8

Infinitely Zooming Circles: Sunday Maths Animations Week 3

Week 3 of my Sunday Maths Animations grew from a puzzle at February’s MathsJam that involved calculating the shaded area in a shape involving infinitely recursing circles. Can you tell which circles are changing in size and which are staying the same?

Continue reading Infinitely Zooming Circles: Sunday Maths Animations Week 3