Sikh coder's excellent protest sign at March for Science

"Worry not." (posted to r/pics by kekembas17) Read the rest

The work of the world's leading nutrition researchers appears to be riddled with statistical errors

Brian Wansink is one of the most-cited nutrition researchers in the world; 30,000 US schools use his advice to design their lunch programs, drawing on studies he's done that show that kids eat more carrots when they're called "X-ray vision carrots" and that putting out fruit bowls improves eating habits, and that smaller plates reduce portion sizes. Read the rest

Sperm extraction machine yours for $13,000

A Chinese company developed a human sperm extraction machine for use in hospitals and other settings where human sperm may be required on the spot, but where conservative social norms or embarrassment make "while they wait" masturbation a difficult proposition.

The Jiangsu Sanwe Medical Science and Technology Center says their device, which has been sold to clinics in the US, Germany, Russia and France, simulates the temperature and feel of the female sexual organ, and is the most user friendly way of collecting samples for sperm donation or for those needing fertility advice. Jim Drury reports.

Reuters reports about 10,000 of the $13,000 devices are sold annually. The SW-3701 sperm collector's official product page reveals technical parameters, among other things.

It can simulate vaginal environment, through massage, twitching, sucking, vibration, etc., act upon the human penis, which can make semen collection fast and safe. So it is the best clinical equipment of sperm collection.

Premature ejaculation desensitization training

The strong currents impact and rub the glans penis repeatedly in order to reduce the excitability of nerve endings so as to passivate external nerve of glans penis, sulcus coronarius, and the surface of the penis, and regulate the sex nerve center in order to minimize nerve sensitivity, improve ejaculatory threshold to treat premature ejaculation.

4) Technical Parameters 1.Massage frequency: 0-1.5Hz 2.Motion frequency: 0-2.5Hz

Packaging Details

wooden or as you request 2 wooden cases

[Thanks, Liam!] Read the rest

New photo of Earth between Saturn's rings can shift your perspective on our reality

That point of light between Saturn's rings is Earth, captured by NASA's Cassini spacecraft on April 12. More about the image here at NASA JPL. It reminds me of the last photo taken by the Voyager I spacecraft before engineers shut off its imaging systems. Carl Sagan had persuaded NASA to turn Voyager I’s cameras back toward the sun on Valentine's Day 1990 and take the first ever "portrait of our solar system" from outside of it. Earth is just a speck in that photo too, a "pale blue dot" as Sagan called it. His beautiful words remind me how a single image can alter one's perspective in an instant:

Look again at that dot. That's here. That's home. That's us. On it everyone you love, everyone you know, everyone you ever heard of, every human being who ever was, lived out their lives. The aggregate of our joy and suffering, thousands of confident religions, ideologies, and economic doctrines, every hunter and forager, every hero and coward, every creator and destroyer of civilization, every king and peasant, every young couple in love, every mother and father, hopeful child, inventor and explorer, every teacher of morals, every corrupt politician, every "superstar," every "supreme leader," every saint and sinner in the history of our species lived there...

Read the rest

Scientists ponder the possibility of quantum consciousness

As AI improves, the mystery of consciousness interests more programmers and physicists. Read the rest

Open source interface to connect your brain to your computer

Most of us need a computer interface implanted in our brains like we need a hole in our head. That said, there are benefits to bridging the gap between mind and machine. Joel Murphy is the founder of OpenBCI, an inexpensive, and non-invasive, brain-computer interface (BCI) platform. People have used OpenBCI to control robots, compose music by thinking about it, develop games, and help individuals who are "locked in" and can't control their bodies communicate with the outside world. Mark Frauenfelder and I interviewed Joel about open source, DIY neurotech in this episode of For Future Reference, a new podcast from Institute for the Future:

Please subscribe to For Future Reference: iTunes, RSS, Soundcloud Read the rest

Bill Nye answered years-old Twitter questions, then filmed them

In March, brand-new Twitter account @SciSupport_BN mysteriously answered science questions, many of which had gone unanswered for years. The real fun started when Bill Nye himself filmed the replies. Read the rest

Poor Alabama county is a hotbed of "neglected tropical diseases"

The Alabama Center for Rural Enterprise worked with Houston's National School of Tropical Medicine to sample "soil and water...blood and faecal samples" from Alabama's Lowndes County, a poor rural area. Read the rest

Breathtaking space film on Cassini's final months exploring Saturn

NASA's JPL is counting down the days to the scheduled end of Cassini's mission in September. Erik Wernquist created this awe-inspiring overview of Cassini's final months of existence.

Read the rest

New materials allow 2.8l/day of solar-powered desert water-vapor extraction

Researchers from MIT, UC Berkeley, Lawrence Berkeley, and King Abdulaziz City for Science and Technology published a paper in Science describing a solar-powered device that uses a new type of metal organic framework (MOF) to extract up to three litres of water per day from even the most arid desert air. Read the rest

Why shoelaces become untied

Why do shoelaces suddenly become untied? Mechanical engineer Oliver O'Reilly and his UC Berkeley colleagues have just published a scientific paper exploring this mystery of the ages. According to O'Reilly, understanding how simple knots work, and then don't, could lead to better knots for surgery, protect undersea optical networking cables from breaking, and enable more realistic animations of hair in computer graphics. From Nature:

The scientists expected that the knots would come undone slowly. But their slow-motion footage — focused on the shoelaces of a runner on a treadmill — showed that the knots rapidly failed within one or two strides. To figure out why, O’Reilly and his colleagues used an accelerometer on the tongue of a shoe to measure the forces acting on a knot. They found that when walking, the combined impact and acceleration on a shoelace totals a whopping 7 gs — about as much as an Apollo spacecraft on reentry to Earth’s atmosphere.

Further experiments demonstrated that simply stomping up and down wasn’t enough for a knot to fail; neither was swinging it back and forth. It took the interlaced effects of the two forces to undo the knot: the repeated impacts loosened it while the changes of direction pulled on the laces.

Read the rest

How to: tickle a rat

In a new meta-analysis published in PLOS One, researchers from Purdue, Stanford and the Canadian Council on Animal Care look at the different techniques used to induce laughter in rats in order to improve their wellbeing and capture their laughter, which is delightful. Read the rest

The scientist who searches for extraterrestrials

According to astronomer Seth Shostak, the alien intelligences we'll likely encounter someday won't be "little grey guys with big eyeballs but machines." As senior astronomer at the SETI Institute, Seth has dedicated his scientific career to seeking out evidence of ET transmissions and using that research to educate the public about our place in the universe. Mark Frauenfelder and I interviewed Seth about hunting for aliens in this episode of For Future Reference, a new podcast from Institute for the Future:

Please subscribe to For Future Reference: iTunes, RSS, Soundcloud Read the rest

Vacuum chamber vs giant gummi-marshmallow

Youtube has democratized the practice of using expensive industrial and scientific apparatus to torment inanimate objects, giving us all a peek into the world of the lucky few who happen to have a hydraulic press gathering dust; but if you thing compressing things is fun, wait until you've seen recreational decompression in action; as with this giant gummi-bear-shaped marshmallow, being subjected to hard vac in the name of science-adjacent fun. (via Neatorama) Read the rest

Gorgeous microscopic footage of chemical reactions

Precipitation3 is the latest in the wonderfully shot and edited series by Beauty of Science, "an educational brand that produces inspiring content for K-12 STEM education and science outreach." Read the rest

Working model of female reproductive system has first period

The EVATAR is a working model of a reproductive system made from a mouse ovary and bits of a human uterus, cervix, vagina, fallopian tubes, and liver. Developed by Northwestern University researcher Teresa Woodruff and her colleagues, the EVATAR is intended to help better test the effects of medicines and toxins on women. And now it's completed its first full menstrual cycle. From National Geographic:

The tissues produced hormones that coursed through the miniature reproductive system, their levels rising and falling over 28 days.

Eventually, multiple synthetic systems could be linked up to essentially create a “human in a dish,” some researchers hope, reducing the need to experiment directly on people or animals.

And scientists hope such devices could one day use a patient’s own tissues to tailor treatments to an individual. Woodruff imagines a future in which a person’s medical care might be tailored using a series of personalized avatar devices as their own metabolism changes through the years.

“I think the future of women’s health is bright,” (Woodruff) says.

Read the rest

Photos from the Body Farm

Texas State University's Body Farm (AKA Forensic Anthropology Center at Texas State University or FACTS) is a 45-year-old facility where the corpses of medical body donors are left to decompose so that researchers can observe the rate at which human remains are consumed by the elements, scavengers and microbes, allowing them to accurately date the bodies of murder victims and those who died accidentally. Read the rest

More posts