Scientists Use 5,000 Slices of a Dead Woman’s Body to Create Detailed Digital Model

KS HealthA 59 year-old obese Maryland woman died over 20 years ago, but details of her anatomy will live on in the digital world. Scientists with The Visible Human Project (creepiest name ever) sliced her cadaver over 5,000 times in order to create a super detailed digital image of the human body.

Image: Visible Human Project
Image: Visible Human Project

High-resolution images showing cross-sections of the body – at just a third of a millimeter thick – were stitched together to create a digital version of the woman, referred to as the ‘human phantom.’

The Visible Human Project was created by the U.S. National Library of Medicine in 1986. Their goal is to provide digital subjects for medical education, but they also hope to provide a new way for researchers to conduct experiments deemed too dangerous to perform on living humans.

“They have ten times as much information as you’d get from an MRI scan,” Dr Fernando Bello, from Imperial College London, told New Scientist. “It means the team will have much more information about organs and their structuring.”

The unnamed woman was not the first to undergo this procedure. The project also digitally pieced together a man in the 1990’s, but the woman’s recreation is much more detailed due to the fact she was sliced thinner (yikes). The male cadaver was sectioned at 1 millimeter intervals; the woman at intervals of just a third of a millimeter.

Click here to learn more about the Visible Human Project. And watch the crazy video below showing 1,800 cross-section images of the male cadaver!

Scientists Use 5,000 Slices of a Dead Woman’s Body to Create Detailed Digital Model

Pile of Bones in South African Cave Reveal Mysterious New Human Species

KS_LOGOs2_HumanScientists in South Africa have discovered a new species of human, Homo naledi. Its physical attributes are bizarre, its age is unknown, and its burial circumstances are baffling.

Pieces of a skeleton of Homo naledi, a newly discovered human species. Credit John Hawks/University of Wisconsin-Madison, via European Pressphoto Agency
Pieces of a skeleton of Homo naledi, a newly discovered human species. Credit John Hawks/University of Wisconsin-Madison, via European Pressphoto AgencyaqACFV

The bones were collected from a chamber 100 feet below ground within the Rising Star cave system in South Africa’s Cradle of Humankind region, which is known for its human fossils. Some 1,550 specimens of bones and teeth were recovered, belonging to at least 15 different skeletons, but that only represents a fraction of the material at the site. The name H. naledi refers to the cave where the bones were found; “naledi” means “star” in the local Sesotho language.

The research paper published in the journal eLife on September 10th explains that modern humans, or Homo sapiens, are now the only living species in their genus. But as recently as 20,000 years ago there were other species that belonged to the genus Homo. Together with modern humans, these extinct human species, our immediate ancestors and their close relatives are collectively referred to as ‘hominins’.

H. naledi stood at about 5 feet tall, with a small brain, clever hands, and an ape-like torso that was built for walking upright as well as climbing. This unique blend of traits is what expedition leader Dr. Lee Berger of the University of Witwatersrand feels classifies it a new species of human.

Scientists don’t quite know where to place H. naledi on the human family tree. So far, researchers haven’t been able to determine the age of the bones. They could be several million years old or tens of thousands of years old. Also curious is whether or not this primitive creature decided to bury their dead together intentionally.

Click here for an in-depth piece by National Geographic delving into the discovery of H. naledi and how this new species changes the human story.

 

Pile of Bones in South African Cave Reveal Mysterious New Human Species

Guess What? There Are 10 Things You Don’t Know About Orgasm

KS Health

Bonk” author Mary Roach delves into obscure scientific research, some of it centuries old, to make 10 surprising claims about sexual climax, ranging from the bizarre to the hilarious. (This talk is aimed at adults. Viewer discretion advised.)

It has been viewed on TED.com over 15,438,578 times. Mary Roach’s lecture on orgasm is both engaging, humorous, and smart . I learned more than I ever wanted to know about orgasm. You can conceivably, if the conditions are right, give a dead person an orgasm. A DEAD PERSON. Orgasm might cure your hiccups. Oh, and you’ll see a video involving a female pig you wish you could un-see. I highly suggest you take 16 minutes out of your day to watch the whole talk.

Click here for the full transcript and more information about Mary Roach. I’ve typed out the full list below, but trust me, there is much more interesting information in the video!

Ten Things You Didn’t Know About Orgasm

#1 – A fetus can masturbate in utero.
#2 – You don’t need genitals.
#3 – You can have them when you’re dead.
#4 – They can cause bad breath.
#5 – They can cure hiccups.
#6 – Doctors once prescribed them for fertility.
#7 – Pig farmers still do.
#8 – Female animals are having more fun than you think.
#9 – Studying human orgasm in a lab is not easy.
#10 – But it sure is entertaining.
Kinsey conducted, for lack of a better term, jerk-off in which he lined men up next to each other and had them ejaculate in order to study how far semen can shoot.
Video