Fascinating stuff on the different ways organisms distribute oxygen around their bodies. While vertebrates mostly stick with hemoglobin, the rest of the animal kingdom have numerous other ways.
Interesting. For a non-rotating black hole, the singularity at its centre is a point. But for a rotating black hole, the situation is more complicated. An article by Ethan Siegel on what the mathematical solution for a rotating black hole tells us about how such black holes behave.
M31, the closest large galaxy that looks like our Galaxy, covers a large part of the sky (this frame is about 6 full moons on a side). From a reasonably dark site M31 is visible to the unaided eye. (image taken with the Rothney Astrophysical Observatory 0.5m Baker-Nunn telescope). #astrophoto
"Memories of disaster fade fast". Which might explain why people keep moving back to flood prone areas, and possibly why people are hesitant about vaccines or sympathetic to extreme right-wing movements.
M51 is a spiral galaxy located about 25 Mly from Earth. It is interacting with a smaller nearby galaxy. Such interactions often cause a flurry of star formation. #astrophoto
The Mueller Report is not and can't be copyrighted, but Scribd's copyright filters took it down anyway. https://www.eff.org/takedowns/mueller-report-cant-be-copyrighted-flagged-copyright-bots-anyway
Book Review: Xiao Xiao and the Dragon Pearl by Joyce Chng.
A young adult novel with princesses, dragons, swords, assassins and set in Manchuria during the Qing dynasty period.
Guest reviewed by @Soulsubsistence.
Interesting. Software Heritage archives source code for various projects, including from GNU Guix.
For Guix, "Guix can fall back to the Software Heritage archive whenever it fails to download source code from its original location."
Via Hacker News [ https://news.ycombinator.com/item?id=19699031 ].
While walking along the river at Springleaf Nature Park, Singapore, I saw a spot of bright red in the water. Getting closer, I saw it was this Red Water Lily (Nymphaea rubra) in full bloom. Spotted on 19 April, 2019.
On iNaturalist [ https://www.inaturalist.org/observations/22694527 ].
A look at a forgotten building in the busy business district of Singapore. It's a former hospital that houses Singapore's oldest lift and may be the earliest example of Modernist architecture in Singapore.
The Register has the perfect headline and article for the Mueller Report: "We've read the Mueller report. Here's what you need to know: ██ ██ ███ ███████ █████ ███ ██ █████ ████████ █████"
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