Blog Posts

[Little Demos] 01 – Wine Glass Einstein Rings

Originally written for a friend in late 2016. Updated in 2020 to remove some inaccuracies and humble brags. Catpic used under (cat's) permission. Do you know that thanks to some convenient optics, we can demonstrate a "gravitational lens" could be demonstrated in my living room (without myself eating 1024 kg of food)? We will be … Continue reading [Little Demos] 01 – Wine Glass Einstein Rings

[FWNotebook] The Arithmetic of a Vernier Caliper

This is a trivial one, and admittedly came and bit me during a lab demonstration session. I don't recall many things that I rely on quite as much on the job that I've never paid attention to, and hopefully this is an isolated incident. And of course, with 10 divisions, 0.1 is the best Vernier … Continue reading [FWNotebook] The Arithmetic of a Vernier Caliper

Photo Story: A Collection of 2019 Sun Pictures

When I was at the kitchen, 2019's last sunset, as was assigned by Gregorian-calander-using people for this time zone, was right outside the window. So I figured I'd capture its descent. I recorded a video, alongside this single photo.2019 is the first full year I spent with my 200mm lens, and my reliance on it … Continue reading Photo Story: A Collection of 2019 Sun Pictures

[Photo Story] Suddenly Still

Before I looked further, she stopped me, "in the night sky, within the world's collective field of vision, most things are moving at tremendously high speeds. And yet, they gathered only to create such a still scene."-- FW's Scrapbook, "Sunbeam", An Unfinished Story, 2015. Today is December 12th. 11th in some regions. Several of my … Continue reading [Photo Story] Suddenly Still