“To Scale”: That Black Hole Picture

If you like scrolling you might enjoy the previous feature: solar-earth light ray diagram to scale. In the spirit of that, and to answer some general complaints, "Why is the photo so blurry!?"... Here's me attempting to put our first black hole portrait to human scales. Of course, this time it's utterly impossible to put … Continue reading “To Scale”: That Black Hole Picture

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? Yes! Well, I drew one in Adobe Illustrator, and then converted it to html. Edit: WP Does not … Continue reading What Does it (really) Take for an ECLIPSE?

What is the Most Frightening Celestial Object?

A few days back on Zhihu.com at home, there was an astronomy question that made it onto the "Trending Q&A" list (quite impressive for my homeland), "What is the most frightening celestial object known to science?" Not surprisingly, in the scientifically literate answers -- many of which I might be interested in covering in the … Continue reading What is the Most Frightening Celestial Object?

Welcome to the Nebulous Future: Speech at Toastmasters on Campus

Welcome to the Nebulous Future An Introduction to Complex Systems A Speech at Toastmasters, February 21st, 2018 Toastmaster, members and guests, good evening. [Newton's Dream] Around three hundred years ago, after setting the foundations of Calculus (ahem), Sir Isaac Newton wrote down his three laws of motion. First - A body will stay at rest … Continue reading Welcome to the Nebulous Future: Speech at Toastmasters on Campus

Sleepless Hearts, #1 (ENG – CHN)

I saw stars through my ceiling, Below our moon, they were sitting In my mind they were calling. The autumn leaf and the swirling wind were my finger’s relative. Maybe here I am, so we never again separate. ⋯ I could not see where it began. I could not conjure afar I am afar. I … Continue reading Sleepless Hearts, #1 (ENG – CHN)

Naming the Stars

Another very short one.  I just printed out my last assignment of the week, and decided to spend another few minutes writing (personally) before I head for a Café (to grab a non-caffeinated drink alone, of course), and hopefully finish the problem set soon after. Bay Area's temperature broke historical records this weekend (39 degrees … Continue reading Naming the Stars