Grey and Brady Discuss: <a href="http://www.bradyharanblog.com/wax-cylinder/cylinder">Hello Internet on Wax Cylinders</a>, April Fools Revisited, the true height of Mt Everest, the banality of life in the past, the Event Horizon Black Hole, The Rise of Skywalker, and Brady's office. 
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<h2 id="show-notes-">Show Notes:</h2>
Discuss this episode on the reddit
<a href="http://www.bradyharanblog.com/wax-cylinder/cylinder">Hello Internet on Wax Cylinders</a>
<a href="https://twitter.com/BradyHaran/status/1112655263142760449">Brady's April Fool's Prank</a>
<a href="https://commons.wikimedia.org/wiki/File:Black_hole_-_Messier_87_crop_max_res.jpg">Event Horizon Black Hole</a>
<a href="https://www.youtube.com/watch?v=rflupY5Aa-Q">Sixty Symbols: THAT Black Hole picture</a>
<a href="https://www.youtube.com/watch?v=zUyH3XhpLTo">Veritasium: How to Understand the Image of a Black Hole</a> & and clever double-dipping: <a href="https://www.youtube.com/watch?v=S_GVbuddri8">First Image of a Black Hole</a>
<a href="https://www.youtube.com/watch?v=adzYW5DZoWs">Star Wars: The Rise of Skywalker</a>
<a href="https://www.youtube.com/watch?v=KAOdjqyG37A">How To Make A Blockbuster Movie Trailer</a>

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HI #122: Wax Cylinders

CGP Grey & Brady Haran