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Galactic Beacons: Alien Signals Across Space And Time

It can be hard to hear a signal 100 miles away—so what does it take to build a beacon loud enough to be heard 100,000 light years away? In this episode, we explore galactic beacons: powerful transmissions that may teach, warn, or outlast the minds that made them.

Watch my exclusive video The End of Science https://nebula.tv/videos/isaacarthur–… Nebula using my link for 40% off an annual subscription: https://go.nebula.tv/isaacarthur Get a Lifetime Membership to Nebula for only $300: https://go.nebula.tv/lifetime?ref=isa… Use the link gift.nebula.tv/isaacarthur to give a year of Nebula to a friend for just $30. Visit our Website: http://www.isaacarthur.net Join Nebula: https://go.nebula.tv/isaacarthur Support us on Patreon: / isaacarthur Support us on Subscribestar: https://www.subscribestar.com/isaac-a… Facebook Group: / 1,583,992,725,237,264 Reddit: / isaacarthur Twitter: / isaac_a_arthur on Twitter and RT our future content. SFIA Discord Server: / discord Credits: Galactic Beacons Episode 440b; April 1, 2024 Written, Produced & Narrated by: Isaac Arthur Graphics: Darth Biomech, Jeremy Jozwik, Ken York YD Visual, Sergio Botero Select imagery/video supplied by Getty Images Music Courtesy of Epidemic Sound http://epidemicsound.com/creator.
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Credits:
Galactic Beacons.
Episode 440b; April 1, 2024
Written, Produced & Narrated by: Isaac Arthur.
Graphics: Darth Biomech, Jeremy Jozwik, Ken York YD Visual, Sergio Botero.
Select imagery/video supplied by Getty Images.
Music Courtesy of Epidemic Sound http://epidemicsound.com/creator

But what is the Fourier Transform? A visual introduction

An animated introduction to the Fourier Transform.
Help fund future projects: https://www.patreon.com/3blue1brown.
An equally valuable form of support is to simply share some of the videos.
Special thanks to these supporters: http://3b1b.co/fourier-thanks.
Learn more about Janestreet: https://janestreet.com/3b1b.

Follow-on video about the uncertainty principle: https://youtu.be/MBnnXbOM5S4

Interactive made by a viewer inspired by this video:
https://prajwalsouza.github.io/Experiments/Fourier-Transform-Visualization.html.

Also, take a look at this Jupyter notebook implementing this idea in a way you can play with:
https://github.com/thatSaneKid/fourier/blob/master/Fourier%2…tion.ipynb.

Thanks to these viewers for their contributions to translations.
Hebrew: Omer Tuchfeld.
Russian: xX-Masik-Xx.
Vietnamese: @ngvutuan2811

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