Ellie Sleightholm

@UCylqgu2ojsCxojFpQogowOA - 141K subscribers

Just a mathematician showing you the beauty in mathematics ✨ I'm Ellie Sleightholm, a Cambridge Part III Mathematics Graduate, previous Astrodynamics Software Engineer, and current Machine Learning Engineer. I love showing that mathematics isn’t something to fear but something to marvel at - a language that explains the world around us and connects everything we see :) Subscribe for new content every Sunday!

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The Artemis II Story You Haven't Heard

The Artemis II Story You Haven't Heard Ellie Sleightholm

664 views - 7 hours ago

Mathematics is Crucial to the Artemis II Reentry - Ellie Sleightholm on BBC Breakfast

Mathematics is Crucial to the Artemis II Reentry - Ellie Sleightholm on BBC Breakfast Ellie Sleightholm

4.3K views - 1 week ago

Where Trigonometry Really Comes From

Where Trigonometry Really Comes From Ellie Sleightholm

38.7K views - 2 weeks ago

Inside the UK’s Most Powerful Supercomputer

Inside the UK’s Most Powerful Supercomputer Ellie Sleightholm

61K views - 3 weeks ago

The Many Paths to Pi

The Many Paths to Pi Ellie Sleightholm

8.1K views - 1 month ago

The Taylor Series: A Beautiful Mathematical Idea

The Taylor Series: A Beautiful Mathematical Idea Ellie Sleightholm

28.6K views - 1 month ago

The Most Beautiful Equation in Mathematics

The Most Beautiful Equation in Mathematics Ellie Sleightholm

65.9K views - 1 month ago

The Million Dollar Equations (Navier-Stokes Equations)

The Million Dollar Equations (Navier-Stokes Equations) Ellie Sleightholm

36.8K views - 1 month ago

The Mathematics of Love

The Mathematics of Love Ellie Sleightholm

3.9K views - 1 month ago

An Intro to Proofs - Proof by Counterexample

An Intro to Proofs - Proof by Counterexample Ellie Sleightholm

1.7K views - 1 month ago

I Solved the Mathematics Exam I Took 10 Years Ago

I Solved the Mathematics Exam I Took 10 Years Ago Ellie Sleightholm

6.6K views - 1 month ago

Can You Solve This Calculus Problem?

Can You Solve This Calculus Problem? Ellie Sleightholm

6.8K views - 1 month ago

I Tried Solving the Hardest SAT Mathematics Problems...

I Tried Solving the Hardest SAT Mathematics Problems... Ellie Sleightholm

7.6K views - 1 month ago

2026 is a Strange Number

2026 is a Strange Number Ellie Sleightholm

7.5K views - 3 months ago

Thinking Like a Mathematician: Forward and Backward Proofs

Thinking Like a Mathematician: Forward and Backward Proofs Ellie Sleightholm

5.6K views - 3 months ago

The Beautiful Mathematics in Stranger Things

The Beautiful Mathematics in Stranger Things Ellie Sleightholm

8.7K views - 3 months ago

The Sneakiest Proof Method in Mathematics

The Sneakiest Proof Method in Mathematics Ellie Sleightholm

12.6K views - 3 months ago

I Solved the Hardest GCSE Maths Questions Ever Given

I Solved the Hardest GCSE Maths Questions Ever Given Ellie Sleightholm

14.5K views - 3 months ago

An Introduction to Mathematical Proofs

An Introduction to Mathematical Proofs Ellie Sleightholm

52.2K views - 4 months ago

Why Topology is SO Beautiful in Mathematics

Why Topology is SO Beautiful in Mathematics Ellie Sleightholm

5.2K views - 4 months ago

The Hardest Mathematics Problem Ever Asked on the IMO

The Hardest Mathematics Problem Ever Asked on the IMO Ellie Sleightholm

185.3K views - 4 months ago

15 Minutes of Mathematical Struggle, 30 Seconds of Genius

15 Minutes of Mathematical Struggle, 30 Seconds of Genius Ellie Sleightholm

19.6K views - 4 months ago

A Beautiful Indian Mathematical Olympiad Problem

A Beautiful Indian Mathematical Olympiad Problem Ellie Sleightholm

9.9K views - 5 months ago

The Putnam Mathematics Problem That Outsmarted Hundreds — Can You Solve It?

The Putnam Mathematics Problem That Outsmarted Hundreds — Can You Solve It? Ellie Sleightholm

18.2K views - 5 months ago

This Equation Decides the Fate of Every Fluid in our Universe

This Equation Decides the Fate of Every Fluid in our Universe Ellie Sleightholm

3.9K views - 6 months ago

Solving One of the Hardest Mathematics Problems in India this Year (2025)

Solving One of the Hardest Mathematics Problems in India this Year (2025) Ellie Sleightholm

361.4K views - 6 months ago

Is This The Most Beautiful Creation in Mathematics?

Is This The Most Beautiful Creation in Mathematics? Ellie Sleightholm

6.5K views - 8 months ago

This 13th Century Maths Sequence Became the Perfect Cover for Murder

This 13th Century Maths Sequence Became the Perfect Cover for Murder Ellie Sleightholm

5.1K views - 9 months ago

I Asked an Oxford Mathematician the Weirdest Mathematics Questions (with @Tom Rocks Maths)

I Asked an Oxford Mathematician the Weirdest Mathematics Questions (with @Tom Rocks Maths) Ellie Sleightholm

13.2K views - 9 months ago

Solving the "Hardest Geometry Problem" from Rushmore (Wes Anderson)

Solving the "Hardest Geometry Problem" from Rushmore (Wes Anderson) Ellie Sleightholm

5.1K views - 10 months ago

Chaos Theory and Mathematics in Jurassic Park

Chaos Theory and Mathematics in Jurassic Park Ellie Sleightholm

5.6K views - 10 months ago

About Me and My Journey into STEM

About Me and My Journey into STEM Ellie Sleightholm

9.6K views - 1 year ago

Programmer Reacts to 'Animation vs Coding'

Programmer Reacts to 'Animation vs Coding' Ellie Sleightholm

265.3K views - 1 year ago

This Mathematics Problem Combines Probability AND Calculus – Can You Solve It?

This Mathematics Problem Combines Probability AND Calculus – Can You Solve It? Ellie Sleightholm

7.9K views - 1 year ago

2025: The Mathematics Behind This Beautiful Number

2025: The Mathematics Behind This Beautiful Number Ellie Sleightholm

7K views - 1 year ago

One of the Hardest Mathematics Exams in India This Year

One of the Hardest Mathematics Exams in India This Year Ellie Sleightholm

386.6K views - 1 year ago

The Ig Nobel Prizes: Fluid Dynamics of Cats? Can Humans Run on Water?

The Ig Nobel Prizes: Fluid Dynamics of Cats? Can Humans Run on Water? Ellie Sleightholm

5.3K views - 1 year ago

New Largest Prime Number Ever Found – Using Whole New Methods!

New Largest Prime Number Ever Found – Using Whole New Methods! Ellie Sleightholm

4.7K views - 1 year ago

Scientists Have Accidentally Discovered a New Formula for Pi

Scientists Have Accidentally Discovered a New Formula for Pi Ellie Sleightholm

24.4K views - 1 year ago

The Best Advice for Mathematics Students (from a mathematics graduate)

The Best Advice for Mathematics Students (from a mathematics graduate) Ellie Sleightholm

14.3K views - 1 year ago

An 1869 Mathematics Entrance Exam to MIT

An 1869 Mathematics Entrance Exam to MIT Ellie Sleightholm

25.3K views - 1 year ago

The Hardest Mathematics Entrance Exam

The Hardest Mathematics Entrance Exam Ellie Sleightholm

17.9K views - 1 year ago

How Newton's Laws Helped Win Gold at the Olympics

How Newton's Laws Helped Win Gold at the Olympics Ellie Sleightholm

2.8K views - 1 year ago

Mathematics at the Olympics: How Maths Helped Win Gold

Mathematics at the Olympics: How Maths Helped Win Gold Ellie Sleightholm

4.7K views - 1 year ago

An Oxford Mathematics Exam Question

An Oxford Mathematics Exam Question Ellie Sleightholm

6.6K views - 1 year ago

The UK's Hardest Mathematics Exam

The UK's Hardest Mathematics Exam Ellie Sleightholm

53.8K views - 1 year ago

Cambridge Mathematician Reacts to Animation vs Geometry

Cambridge Mathematician Reacts to Animation vs Geometry Ellie Sleightholm

75.9K views - 1 year ago

Infinite Parallel Universes Probably Exist. Here's Why...

Infinite Parallel Universes Probably Exist. Here's Why... Ellie Sleightholm

4.3K views - 1 year ago

Black Holes That Shoot "Jedi Lightsabers"

Black Holes That Shoot "Jedi Lightsabers" Ellie Sleightholm

2.7K views - 1 year ago

Solve This Mathematics Problem and Get 1 Million Dollars

Solve This Mathematics Problem and Get 1 Million Dollars Ellie Sleightholm

79.3K views - 1 year ago

China's Hardest Mathematics Exam

China's Hardest Mathematics Exam Ellie Sleightholm

46.2K views - 1 year ago

Where is the Coldest Place in the Universe?

Where is the Coldest Place in the Universe? Ellie Sleightholm

3.2K views - 1 year ago

Is AI Replacing Mathematicians? Discussing Google’s AlphaGeometry

Is AI Replacing Mathematicians? Discussing Google’s AlphaGeometry Ellie Sleightholm

37.7K views - 1 year ago

Solving Mathematics in The Simpsons

Solving Mathematics in The Simpsons Ellie Sleightholm

18K views - 2 years ago

Cambridge Mathematics Graduate Reacts to 'Animation vs Physics'

Cambridge Mathematics Graduate Reacts to 'Animation vs Physics' Ellie Sleightholm

147.7K views - 2 years ago

Cambridge Mathematics Graduate Reacts to 'Animation vs Math'

Cambridge Mathematics Graduate Reacts to 'Animation vs Math' Ellie Sleightholm

553.7K views - 2 years ago

America's Hardest Mathematics Exam

America's Hardest Mathematics Exam Ellie Sleightholm

102K views - 2 years ago

Solving Mathematics in 'The Man Who Knew Infinity' (Ramanujan)

Solving Mathematics in 'The Man Who Knew Infinity' (Ramanujan) Ellie Sleightholm

62.8K views - 2 years ago

Astronomy & Astrophysics Olympiad Question | IOAA 2019 Question 3

Astronomy & Astrophysics Olympiad Question | IOAA 2019 Question 3 Ellie Sleightholm

6.8K views - 2 years ago

The SAT Question Everyone Got WRONG - An Alternative Proof

The SAT Question Everyone Got WRONG - An Alternative Proof Ellie Sleightholm

12.8K views - 2 years ago