Could you recover a murder victim's last sight of their killer by extracting it from the retina? Little more than a century ago, forensic scientists thought it might be possible. After all, in 1877 physiologist Wilhelm Friedrich Kühne was able to develop a simple image from an albino rabbit's dissected eyeball. (Above, the two images on the right come from rabbits who stared at two different windows. The left shows just nerves and blood vessels.) From Smithsonian:
The College of Optometrists in the U.K. reports that police photographed the eye of a murdered man in April 1877, "only partly aware of what optography involved," and that investigators on the trail of Jack the Ripper may have considered a proposal to use the technique.
Faith in optography was misplaced, however, as Kühne's experiments showed that only simple, high-contrast surroundings were able to produce interpretable optograms, Douglas J. Lanska writes in Progress in Brain Research. Furthermore, the retina needs to be removed very quickly from the recently deceased.
Backed by huge donations from vitamin companies, the American Association of Naturopathic Physicians is pushing to get naturopathic medicine recognized and regulated in all 50 US states, paving the way to receiving public funds in the form of Medicare reimbursements. Read the rest
In California today, a grand jury indicted the Plains All-American Pipeline and one of the oil company's employees on criminal charges over the massive 2015 oil spill in Santa Barbara County.
Thomas Manning, 64, is recovering after receiving the first penis transplant in the United States. Manning had his penis amputated in 2012 due to penile cancer. It took 15 hours for surgeons at Massachusetts General Hospital to complete the transplant, medically known as a "gentitourinary vascularized composite allograft." The surgery involved "grafting the complex microscopic vascular and neural structures of a donor organ onto the comparable structures of the recipient." According to the surgeons, the procedure could someday be used for gender reconstruction. From CNN:
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Dr. Dicken Ko, director of the hospital's Regional Urology Program, said the objectives of the surgery were primarily to reconstruct the genitalia so that it appeared natural, followed by urinary function and hopefully sexual function. However, Ko added that while sexual function is a goal, reproduction is not, because of a concern surrounding the ethical issues of who the potential father may be.
The agency says that the angle of the sunlight that strikes its tracks creates glare that blinds the CCTVs that train-drivers use to ensure that the platform is clear before pulling out of the station. Read the rest
Penn and Teller's classic takedown of anti-vax bullshittery. And if you don't know, now you know.
A favorite demonstration in high school science classes of yesteryear, dropping sodium into water is spectacularly explosive. In this video, a fellow attempts to skip a pound of sodium across a river.
Since its inception as a 2012 Kickstarter, the Reading With Pictures project has gone from strength to strength, culminating in a gorgeous, attractively produced hardcover graphic anthology of delightful comic stories that slot right into standard curriculum in science, math, social studies and language arts. Read the rest
Fascinating, now gimme a double latte. (AsapSCIENCE)
After years of speculation and wrangling over his remains, Kennewick Man turns out to be closely related to contemporary, local Native Americans after all.
Discovered near Kennewick, Wash., in 1996, the skeleton ended up in a tug of war between tribes in the pacific northwest who wanted to bury the remains, and scientists who wanted to study them.
Five Pacific Northwest tribes pressed the Army Corps of Engineers, which has jurisdiction over the bones, to hand them over in accordance with a federal law on the repatriation of remains. However, a group of scientists sued to block the handover, arguing that the skeleton was not associated with a present-day tribe.
Federal judges sided with the scientists, and as a result, the corps retained custody of the skeleton and made it available for study. Now that the studies are finished, the 380 bones and bone fragments are locked away in Seattle at the University of Washington’s Burke Museum of Natural History and Culture.
Some scientists suggested that Kennewick Man might have been a visitor from the Far North, Siberia or perhaps someplace even more exotic. But when geneticists compared DNA from a hand bone with a wide range of samples, they found that the closest match came from members of the Confederated Tribes of the Colville Reservation.
The burial site will be a secret, so we can have this fight all over again in a few thousand years. Read the rest