Zach Star - Channel

Zach Star

(This channel used to be called MajorPrep, changed as of January 8th, 2020). I make nerdy and occasionally funny videos. For business inquiries: ZachStarYT@gmail.com

266 videos

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13:28

Responding to comments on my flat earth video

6:44

When you ask the internet any math question

9:23

How to compress an image with (basic) linear algebra

8:36

The first engineer (well, not really)

15:42

The math that proves the Earth isn't flat

7:33

How big is 1 billion?

7:29

When your friend asks you to engineer the Matrix

9:20

Probability is just...really weird

11:07

Just 3 questions/puzzles that seem obvious but aren't

21:07

The History of Engineering (in exactly 20 minutes)

6:15

When Isaac Newton discovers gravity (and everything else)

10:25

Probably the weirdest function I encountered as an engineering student

8:49

How I wish logistic growth was taught to me in Calc 2

11:25

The intuition behind the Nyquist-Shannon Sampling Theorem

10:16

Why following your compass will (almost) always lead you to the North or South Pole | Math of Maps

5:55

When you're an engineer in the Star Wars Universe

13:08

Why do Electrical Engineers use imaginary numbers in circuit analysis?

9:02

The scariest thing you learn in Electrical Engineering | The Smith Chart

4:10

When you're an engineer for the Titan submersible

20:00

Ranking all 22 engineering classes I took in college

7:13

Each point is connected to its closest neighbor, how many connections can a single point have (max)?

15:43

Why shadows (almost) always trace out hyperbolas (but it depends on where you live).

9:02

What are the odds that 3 'random' points on a sphere will form an acute triangle?

4:05

Engineering jobs in the future (probably) be like...

9:40

How should you arrange 7 water fountains in a mall to minimize the longest possible walk?

13:29

You can always win this game if you go second | An SOS (math olympiad) puzzle

8:28

The Poker Paradox

13:03

The Sierpinski-Mazurkiewicz Paradox (is really weird)

5:34

Watching a movie (or TV show) with a STEM major be like

8:27

A 1957 Putnam exam problem

7:46

Can you always pair an equal number of red and blue points with no intersection?

15:44

The Mathematics of the Casino | What people get wrong about gambling

4:45

Engineering in movies be like

5:16

If Saw was a typical engineering student

8:11

Can you always cover 10 points with 10 equally sized (non-overlapping) coins?

14:45

The applications of hyperbolic trig | Why do we even care about these things?

10:02

How you can solve dice puzzles with polynomials

5:42

No you guys, most shapes do not have a center of mass with this property (but some do)

12:47

A surprising topological proof - Why you can always cut three objects in half with a single plane

14:41

Teaching myself abstract algebra

1:00

When you tutor the kid who cheated their way through school #shorts

13:49

Approximations. The engineering way.

16:52

What changes? | A lesson in statistics, incentives, and internet stupidity

9:20

Is there (always) a line that passes through exactly 2 points?

14:49

What I've been reading | STEM book recommendations

5:37

STEM students in non STEM classes be like...

10:40

Random things

12:18

An inverted pendulum puzzle

13:30

The Bolzano–Weierstrass theorem, a proof from real analysis

19:28

Teaching myself an upper level pure math course (we almost died)

14:54

The intuition and implications of the complex derivative

11:45

Could you avoid being hit by a laser if you were in a room of mirrors?

9:42

A donut is not a sphere | Things you can do on one surface but not the other

8:30

Why imaginary numbers are needed to understand the radius of convergence

6:57

Engineering students be like...(Part 2)

18:43

The applications of non-euclidean distance | Metric Spaces

9:46

If the hour and minute hand on a clock look identical, can you always determine the time?

16:25

What happens at infinity? - The Cantor set

16:21

Things get weird at infinity

12:21

What would we see if we lived on a hypersphere?

13:19

We likely live in one of these 18 universes

18:54

These changed how I think about higher dimensions

12:49

The real world applications of the dot product

18:36

This is why you're learning differential equations

10:20

Symmetry Puzzles

16:24

It really seems like our universe could be part of a hypersphere, but... it's probably not

7:49

Math and physics can show up when you least expect

12:45

Parity Puzzles

1:41

Second Channel Announcement

4:37

Engineering students be like

15:44

What if the universe had a higher dimensional twist in it?

5:00

This question seems like it requires calculus, but it actually has a much more clever solution

22:41

Does math belong in the courtroom?

5:12

A google and amazon interview question with a really clever solution

3:16

When your boss always finds extra work for you to do

14:42

Simple, yet counterintuitive mathematics | Why numbers don't always mean what you think

16:26

Dear linear algebra students, This is what matrices (and matrix manipulation) really look like

7:20

An unexpected application of the harmonic series

14:00

Curves we (mostly) don't learn in high school (and applications)

8:32

The Poisoned Drinks Problem

9:15

The Lost Fisherman Problem | What is the most efficient way back to shore?

16:34

Dear all calculus students, This is why you're learning about optimization

10:51

What does mathematical induction really look like?

14:19

When the FBI had too many fingerprints in storage | The mathematics of image compression

12:36

Dear Calculus 2 Students, This is why you're learning Taylor Series

6:55

Goodbye MajorPrep....(It's Clickbait, just a channel name change)

11:51

Random things that will (likely) surprise you

7:37

Engineers in math class be like...

3:36

I made a (free) linear algebra tool | What I use to make my videos

23:45

The applications of eigenvectors and eigenvalues | That thing you heard in Endgame has other uses

18:00

The intuition behind Fourier and Laplace transforms I was never taught in school

16:43

How do complex numbers actually apply to control systems?

13:42

The beauty of complex numbers

9:29

Engineering professors be like

20:25

What does the Laplace Transform really tell us? A visual explanation (plus applications)

29:47

The Mathematics of Signal Processing | The z-transform, discrete signals, and more

25:16

The Applications of Matrices | What I wish my teachers told me way earlier

13:40

The algorithm that started google

13:35

A visibility problem, how many guards are enough?

22:59

The second most beautiful equation and its surprising applications