New Scientist has photos and video of a severed rat limb… that was never part of any rat’s body. It was grown in a dish: It may go down in history as the first step to creating real, biologically functional limbs for amputees. “We’re focusing on the forearm and hand to use it as a model system and proof of principle,” says Harald Ott of Massachusetts General Hospital in Boston, who grew the limb. “But the techniques would apply equally to legs, arms and other extremities.” … The technique behind the rat forelimb – dubbed “decel/recel” – has previously been used to build hearts, lungs and kidneys in the lab. Simpler organs such as windpipes and voicebox tissue have been built and transplanted into people with varying levels of success, but not without controversy…. In the first, decel step – short for decellularisation – organs from dead donors are treated with detergents that strip off […]
A shellfish that was around when megalodons swam and the first crows flew.
It was drawn by J.C. McConnell, a doctor who officially worked as a clerk for the Army Medical Museum, and gained a reputation for his shells, especially prehistoric ones.
If you’re going to be known for anything, I guess, why not that?
SONG: “Jump, Jump, Jump”.
SOURCE: Based on “Fish and Adaptation: Mangrove Fish Jumps into Air in Warming Water”, Nature World News, 21 Oct 2015, as used in the post “Global warming might make the fish jump.”
ABSTRACT: First, let me say that this was done on time, even early. It started as a jokey thing I was singing to my son while he was watching me play guitar on the couch, and I decided what the hell. They call it “playing” music for a reason. (I guess if I spoke …
In 1775, Pennsylvania Magazine wanted its readers to be up to date on the very latest in technological advances, including this machine for… well, it seems to be some kind of a caisson for dredging harbors, more than something that “cleanses docks.” Anyway, it’s very impressive, this American ingenuity.
From the device’s description: The machine consists of a horse-drawn crane on a boat with a crane and shovel. A man is shown operating the shovel. Includes a detail of …
SONG: “All Praise Black Ice”.
SOURCE: Based on “New Horizons Finds Blue Skies and Water Ice on Pluto”, NASA.gov, 8 Oct 2015, as used in the post “There’s water ice on another planet. Not Mars. Pluto.”
Laryngitis followed by a business trip and here I am, a couple weeks late. I hope the brass section makes up for that.
(Yes, there’s brass in there, somewhere. I really need help mastering these things, but one does what one can in between everything e…
They don’t look so hot.
Science Art: Chemical Laboratory room. Experimental Research labs, Burroughs Wellcome and Co. Tuckahoe, New York
Welcome to Wellcome.
They’ve got all kinds of wonderful things in their image gallery, including this marvelous experimenter in an even more marvelous experimental lab.
In 1935, this was where the future was made.
This is a naked woman, as seen in 1911 by a German medical expert. The book’s title translates to “The Woman As Family Doctor,” and it’s pretty much a home health guide specializing in those mysterious conditions that affect women and children. Gynecology and pediatrics, basically. It’s full of some amazing illustrations and wonderful typography, so check it out on archive.org.
Click to embiggen This one is definitely worth clicking to embiggen. It’s from the very detailed, very large Histoire générale et particulière du développement des corps organisés by 19th-century embryologist Jacques Marie Cyprien Victor Coste, and there’s a little, tiny baby right in the middle of it. Apparently, Coste spends most of the book comparing developing humans with developing chickens… beautifully, and on a grand scale. You can see the big, brilliant baby book at Ellis Library Colonnade of the University of Missouri-Columbia. [via Scientific Illustration]
Click to embiggen Take a deep breath. This is the inside of your lung, seen really closely. At the time his was drawn, we weren’t really sure what it did, other than… breathe. It’s from a An Examination into the Structure of the Cells of the Human Lungs; with a View to Ascertain the Office They Perform in Respiration, a rather short article (no, really) published a couple of centuries ago in the Philosophical Transactions of the Royal Society of London.
Ever feel congested? Here’s where it happens – the paranasal sinuses. These ones are under your eyes. And the artery we’re specifically looking at here comes from the main artery to the eyes, but branches off to feed the nose. Where things get all coily and spirally. From “Anatomy of Orbit”, by Professor Balasubramanian Thiagarajian, in Rhinology, February 9, 2013. You know Prof. Thiagarajian. The nose man? He knows nose.
Click to embiggen. A smugly skinless man from Bartholomeo Eustachi: Tabulae anatomicae, a series of engravings that were meant to be published in the 1560s, but were lost until 1714. In fact, the words (by Eustachi) were never found. (Oddly, these plates were published under Eustachi’s name, even though he didn’t engrave them and didn’t write the words beside them.) The pictures, though, tell their own story. The numbers on the sides are also worth noticing. They were used not just to give the figures a sense of scale, but also so Eustachi (or whovever was writing the commentary) could give coordinates to a particular organ or body part.
Nature draws an ancient lesson from America’s favorite pastime, observing how baseball pitchers reveal the evolution of human beings: “Throwing projectiles probably enabled our ancestors to effectively and safely kill big game,” says Neil Roach, a biological anthropologist at George Washington University in Washington DC, who led the work. Eating more calorie-rich meat and fat would have helped early hominins’ brains and bodies to grow, enabling our ancestors to expand into new regions of the world, he suggests. … Although some primates occasionally throw objects, and with a fair degree of accuracy, only humans can routinely hurl projectiles with both speed and accuracy, says Roach. … The researchers used high-speed motion-capture cameras to record the throwing motions of 20 college athletes, including 16 baseball players. They then handicapped the athletes’ throwing abilities to that thought to be more similar to that of our ancestral hominins, using therapeutic braces to constrain the range of motion in […]
Bioscience Technology opens our eyes to the groundbreaking researchers who have discovered a whole new layer of the human cornea: The new layer has been dubbed the Dua’s Layer after the academic Professor Harminder Dua [of the University of Nottingham], who made the discovery. “This is a major discovery that will mean that ophthalmology textbooks will literally need to be re-written. Having identified this new and distinct layer deep in the tissue of the cornea, we can now exploit its presence to make operations much safer and simpler for patients,” says Dua, a professor of ophthalmology and visual sciences. “From a clinical perspective, there are many diseases that affect the back of the cornea which clinicians across the world are already beginning to relate to the presence, absence or tear in this layer.” … The new layer that has been discovered is located at the back of the cornea between the corneal stroma and Descemet’s […]
This eye-catching dress is based on retinal neurons as observed by Ferrucio Tartuferi in 1887. He put eyes under the microscope and looked at what could have been looking back at him. The same designer has Rover Curiosity dresses and DNA leggings among other science-inspired fashion. [via Laughing Squid]
We’ve talked about digital subtraction angiography before… taking X-ray images and using a computer to remove everything you *don’t* want to see. This image, of aortal blockage caused by Leriche Syndrome (the aorta is occluded near the kidneys, causing thigh pain, muscle atrophy, and impotence), was made by Wikimedia Commons user Hellerhoff, who has other images of our interior world.
Laboratory Equipment reveals how computers can now ID you by watching you walk: he National Physical Laboratory (NPL) has developed a walking gait recognition system that, in combination with other tools, can help track an individual though a CCTV monitored area by analyzing the way that they walk. New technology developed by NPL, the Centre for Advanced Software Technology (CAST), the BBC and BAE Systems has improved spatial awareness for CCTV and security systems. The system combines a computer model of the NPL building with feeds from CCTV cameras placed around the site. It records a person’s gait signature, or specific walk, checks to see where else that person has been in the building and displays the results in the computer model. Improving visualization tools in filming equipment has a range of benefits — from identifying suspects based on the way they walk, to streamlining the broadcast of sporting footage.