This is how an alga (that’s how it’s spelled in the book) reproduces. It looks like an underwater nasturtium.
Here, it’s being used to demonstrate what exactly RNA is doing in cells when living things reproduce. Algae are nice and simple, so little changes can be easy to see. This particular water plant helped biologists understand that the cell nucleus is where all that reproductive information gets stored.
The book in question is The Biological Role of Ribonucleic Acids by Belgian …
Science Art: Patterns of taxonomic and morphological diversification in early ray-finned fishes, M. Friedman.
Fish, in families. Fish, in schools.
These are all ray-finned fishes, on a chart showing how they became more diverse from the Devonian period (when oceans were the “in” places for life forms to hang out) to the Triassic (when dinosaurs started making the scene).
Ray-finned fish are one of two groups of bony fish (which is the big group of, basically, all the fish that aren’t sharks, rays, hagfish or lampreys). The other group of bony fish are lobe-finned fish, which are fish like coe…
Science Art: Vertical Image of Area A at Happisburgh, from "Hominin Footprints from Early Pleistocene Deposits at Happisburgh, UK," 2014.
These are the feet of prehistoric humans – little feet of children, big feet of adults. Actually, it’s an infographic based on a photograph based on rather well-preserved mud in Norfolk, England, which captured the shape of feet about a million to 0.78 million years ago. It’s a trace of a trace of a trace of feet.
The site is the “oldest known hominin footprint surface outside Africa.” It’s a group of men, women, boys, and girls from a family of our ancestors. They might be Neanderthals, …
This is a cartoon – a *funny* cartoon from about a hundred years before smartphones became a thing.
We knew what they would do to us. Even then, we knew.
It was published in Punch Magazine, but I found it at Public Domain Review.
I’m not sure exactly what this is a map of (other than Glen Tilt, Tayside), because there’s not much information on the USGS page where I found it.
It’s got a lovely geometry, though.
SOURCE: “This Swimming Stingray Robot Is Powered by Real, Living Rat Cells,” Popular Mechanics, 7 July 2016, as used in the post “Living robot: mechanical stingray swims with rat-cell muscles..”
I just got back from a week and a half driving around America yesterday, and here’s a song today. If it’s an hour late, I’ll forgive that.
I started on the music before I left, but for the most part, this is a 24-hour song. I tried …
From IBM’s patent 3470399, a device to tell how fast an electric motor is running by detecting its magnetic field.