They felt equally long – the one I spent doubting myself and managing my stress, and the totality.
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FW’s Notebook, Spacetime Optics with a Schwarzschild Blackhole
Some scrap calculations that I think are valid.



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Waiting for the black hole image now!
19:02 NZDT,
Auckland
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π Day Memories
Recite π as a binary decimal, if you wish.
This page is updated annually, subject to my current time zone.
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Quick Scientific Symbols via Apple Text Replacement
Some of my text-friends ask me how I can quickly type out mathematical symbols when we are discussing homework problems. Well, for one, I enabled the Greek keyboard on my phone, and then there’s this: taking advantage of the automatic text-replacement system built right in macOS and iOS.
Full Chart -

How Did pi Get Here? (FWN’s Solution to 3Blue1Brown’s Puzzle)
Joining the discussion today.
Read the WorkingHere’s the problem in its animated glory (From 3blue1brown on Youtube) -
FW’S NOTEBOOK #2 – Fagnano Problem
Lurking in my recent research readings, this is a problem at the intersection of middle school geometry and quantum chaos …
This week’s post was delayed such that certain subscribers taking final exams won’t be disturbed. Hope you all had fun.
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What Does it (really) Take for an ECLIPSE?
I guess you know the drill by now. Round earth with a moon whizzing around, and the pair occasionally block sunlight from each other. Neat stuff.
Do you want to see an actual ray diagram of that?
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![[Photo Stories] Bailey’s Bead During the 2019 Total Solar Eclipse](https://fwphys.com/wp-content/uploads/2019/07/ftd_9673-2.jpg?w=1024)
![[To Scale] That Black Hole Picture](https://fwphys.com/wp-content/uploads/2019/04/img_1911.jpg?w=800)
![Watching the Ocean [Translation Work]](https://fwphys.com/wp-content/uploads/2019/02/scr00070.jpg?w=1024)