Uploaded September 2025 | Updated September 2026, 2 weeks ago
To learn more about solar energy and to join in on events, visit Sun Day's website: crnt.link/sun-day-lookingglassuniverse #SunDayPartner
This is Brian Potter's article(s) on how to solve solar's seasonality problem and how much it'll cost: construction-physics.com/p/can-we-afford-large-scale-solar-pv and construction-physics.com/p/understanding-solar-energy
Plus his articles on exactly how solar got so cheap are super interesting: construction-physics.com/p/how-did-solar-power-get-cheap-part
This is the graph of solar's price over time: ourworldindata.org/grapher/solar-pv-prices
Here's a video I showed some clips from in the video. It's about making silicon from sand: youtu.be/Lo3O82dmPxA?si=UmY5hyrWFoUQcA3B
The geometric earrings I wore in this video are from my friends at Maths Gear: mathsgear.co.uk/products/maths-icon-earrings
To learn more about solar energy and to join in on events, visit Sun Day's website: crnt.link/sun-day-lookingglassuniverse #SunDayPartner
This is Brian Potter's article(s) on how to solve solar's seasonality problem and how much it'll cost: construction-physics.com/p/can-we-afford-large-scale-solar-pv and construction-physics.com/p/understanding-solar-energy
Plus his articles on exactly how solar got so cheap are super interesting: construction-physics.com/p/how-did-solar-power-get-cheap-part
This is the graph of solar's price over time: ourworldindata.org/grapher/solar-pv-prices
Here's a video I showed some clips from in the video. It's about making silicon from sand: youtu.be/Lo3O82dmPxA?si=UmY5hyrWFoUQcA3B
The geometric earrings I wore in this video are from my friends at Maths Gear: mathsgear.co.uk/products/maths-icon-earrings


![Fourier Series
Fourier transform: https://youtu.be/Xxut2PN-V8Q
In this video, I explain what the Fourier series does, and why it is one of the most surprising results in mathematics.
All the plotted graphs in this video were done in Mathematica. If you dont have the program then you can use the free internet version called Wolfram Alpha. To find the nth order Fourier series of f(x) in either of these, use: FourierTrigSeries[f(x),x,n] or FourierSeries[f(x),x,n] for the exponential version.
If you want to know how to do something more specific (for example code up the Cantor function) then let me know, Ill send it to you. Thank me later when youre spending all your free time plotting graphs.
And finally if you want to see an application of this stuff, this was the first ever application:
http://en.wikipedia.org/wiki/Heat_equation#Solving_the_heat_equation_using_Fourier_series Fourier Series](https://i.ytimg.com/vi/kP02nBNtjrU/mqdefault.jpg)







