Science has done it again everybody! Brace yourselves for this groundbreaking news, freshly determined by physicists: Time travel, if it exists, may have some weird consequences. Gosh, who’d have thunk it?
But no, seriously, a recent article suggests that a certain kind of theoretically possible time machine would wreak minor havoc with a firm principle of quantum mechanics, the often-weird science of the smallest bits of the universe. You know what this means: We get to explore the science of time travel!
Let’s get this out of the way first: Obviously time travel exists, because it’s already the third week of 2014. We’re all time travelers (chrononauts), technically, moving 1 second per second through time. Certain weird side effects of relativity theory also mean time can travel more quickly under certain conditions, so it’s even possible for you to travel into the future (someone else’s future, at least) faster than the usual rate.
The “useful” kind of time travel, though, for sci-fi authors and dreamers alike, is into the past, Back to the Future style. And, happily, relativity theoretically can make that possible, too, by warping the fabric of reality, space-time, so much that it loops back on itself. A so-called wormhole (again, officially deemed possible by science) could be the bridge that connects two different times.
Joan Bennett didn’t believe in sick building syndrome. As a specialist in mold toxins, she had even testified in trials in support of insurance companies denying claims to homeowners who claimed that they had been sickened by toxins from their moldy houses.
Then Hurricane Katrina struck, Bennett’s home was flooded, and she evacuated. “A month later, as a form of psychological sublimation, I decided to travel back and sample my home for mold,” she said. Her house smelled horrendous, worse than any mold she’d ever smelled. She donned a mask and gloves and protective gear, but even so, she felt awful – dizziness, headache, malaise. She walked outside and felt better. Then it struck her: “I think there’s something in this terrible mold I’m smelling.”
But she still believed in her old arguments against the theory. She knew how much mold toxin we ordinarily get exposed to from mold in food, and she still knew that it was far greater than any we could breathe from spores in the air.
But the smell of mold was another matter. Most things we can smell are volatile organic compounds (VOCs), and some VOCs are known to make people sick. “I knew that a minor theory was that sick building syndrome might be caused by the VOCs that make fungi smell moldy,” Bennett says. And then she thought, “Ta da! Maybe there is such a thing as sick building syndrome, and maybe it has nothing to do with the fungus toxins I’ve been studying all my life!”
That moment transformed her research career. Along with her house, she’d lost her entire frozen genetic stock of fungi in the storm, because the power had gone out and everything had defrosted. She had to mostly start over anyway, and now she wanted to prove her new theory.
By Samantha Joel, University of Toronto
People tend to see their own lifestyle as being the ideal lifestyle. A single person may question why anyone would choose to shackle themselves to one partner rather than live it up with the single life. Then there is that smug married couple who pushes for other couples to also tie the knot, so they can similarly bask in wedded bliss.
This phenomenon is called “normative idealization”, which is the tendency to idealize one’s own lifestyle and believe others would benefit from it too.
Where does such insufferable behavior come from? It has been suggested that people might idealize their own relationship status not because they are actually confident that it is ideal, but rather because they are trying to feel better about their own lives.
Psychologists at Stanford University and the University of Waterloo tested whether people were more judgmental of others’ lifestyles when they felt threatened regarding their own. Their results are published in the journal Psychological Science.
In 2007, astronomer Duncan Lorimer was searching for pulsars in nine-year-old data when he found something he didn’t expect and couldn’t explain: a burst of radio waves appearing to come from outside our galaxy, lasting just 5 milliseconds but possessing as much energy as the sun releases in 30 days.
Pulsars, Lorimer’s original objects of affection, are strange enough. They’re as big as cities and as dense as an atom’s nucleus, and each time they spin around (which can be hundreds of times per second), they send a lighthouse-like beam of radio waves in our direction. But the single burst that Lorimer found was even weirder, and for years astronomers couldn’t even decide whether they thought it was real.
The burst belongs to a class of phenomena known as “fast radio transients” – objects and events that emit radio waves on ultra-short timescales. They could include stars’ flares, collisions between black holes, lightning on other planets, and RRATs – Rotating RAdio Transients, pulsars that only fire up when they feel like it. More speculatively, some scientists believe extraterrestrial civilizations could be flashing fast radio beacons into space.
Astronomers’ interest in fast radio transients is just beginning, as computers chop data into ever tinier pockets of time. Scientists call this kind of analysis “time domain astronomy.” Rather than focusing just on what wavelengths of light an object emits or how bright it is, time domain astronomy investigates how those properties change as the seconds, or milliseconds, tick by.
Scientists have called the contraceptive pill one of the most important inventions of the twentieth century. Now, more than fifty years after the Pill was first released, contraception remains a woman’s world.
Sure, men can use condoms or have a vasectomy, but women have a much more dizzying array of options from which to choose. From pills to contraceptive vaginal rings to intrauterine devices and more, most scientists and pharmaceutical companies have focused their contraception efforts on women.
This isn’t necessarily a bad thing. Many reproductive health scientists say that we need more, not fewer, options for contraception. The problem is that virtually all contraception is being geared toward women. That’s largely because, historically, contraception was grouped in with the traditional female concerns of family and childbearing.
“There are a fair number of women who are dissatisfied with their current method of contraception,” said Michael O’Rand, a biologist and male contraception expert at the University of North Carolina at Chapel Hill.
On July 11th 1998, my life was ominously transformed by an encounter with the once-familiar subjects of my research. Having been hired by the University of Wyoming a decade earlier to study the ecology and management of rangeland grasshoppers, I thought that I pretty much knew these insects.
I had spent that fateful morning gathering data from research plots. A week earlier, my field crew reported that to the north, where deep draws were etched into the prairie, the grasshoppers were reaching biblical proportions. I decided to see for myself.
The earthen banks rose above my head as I descended into the gulch, where the insects had massed into a bristling carpet of wings and legs. My arrival incited pandemonium. Grasshoppers ricocheted off my face, tangled their spiny legs into my hair, and began to crawl into the gaps between shirt buttons.
By Jo Adetunji, The Conversation
This article was originally published at The Conversation, an online publication covering the latest research.
James Bond might have been been more shaken than stirred if his intake of alcoholic drinks is anything to go by.
Along with his love of women, Bond also had a keen taste for martinis. And researchers have scoured the books to calculate that the MI6 spy drank over four times the recommended limit each week.
They argue that contrary to helping performance under pressure, this amount would probably have affected his capacity to perform “in all aspects of his life”. As a high-risk category three drinker, in the longer term this would put him at risk of developing alcoholic liver disease, cirrhosis, impotence and alcohol-induced tremor – not great for womanizing or sniper missions – and potentially an early death.
The researchers, who published their paper in the British Medical Journal, also discovered that Bond was often drunk at the wheel.
By Wind Goodfriend
This article originally appeared on Dr. Goodfriend’s blog “A Psychologist at the Movies.”
I’m completely obsessed with The Hunger Games. I’m not sure why. Maybe it’s because I have visited North Korea, a real country where millions of people really are dying of hunger. Maybe it’s the ironic meta-experience of watching the movie’s violence on a huge screen, when the movie’s point is that people shouldn’t watch violence on a huge screen. Regardless, The Hunger Games is chock-full of possible psychological analysis. Today I’m focusing on the fascinatingly weird emotions that spark between the The Hunger Games’ two main protagonists, Peeta and Katniss.
At home, Katniss has a boyfriend, a young man named Gale. He has rugged good looks, he’s brave, and they are perfectly matched in many ways. Both Katniss and Gale fight against the system in their own way (which is increasingly seen as the trilogy continues), and he is always successful at making Katniss feel comforted in a world with no comforts.
So why does Katniss later fall for Peeta? Peeta certainly has lovable qualities – he’s smart, nurturing, and can frost a cake like nobody’s business – but he and Katniss are not exactly a natural pair. Their personalities clash, their goals in life are different, and Katniss really isn’t interested in any kind of frivolous romance. Sure, in the first movie she is ambivalent about her feelings for Peeta, the kind-hearted boy with a sexy baby-faced look. But psychology would have predicted their blossoming feelings for each other due to their experiences together in the Hunger Games. It’s all because of a phenomenon called misattribution of arousal. Read More
By Darren Ansell, University of Central Lancashire
This article was originally published at The Conversation, an online publication covering the latest research.
Apparently keen to inject a bit of fun into its image after a damaging few weeks of press coverage, online retail giant Amazon has announced that it is experimenting with the use of drones to deliver its products.
According to chief executive Jeff Bezos, a squadron of unmanned “octocopters” could be deployed in the next five years to deliver packages of up to 5 pounds (2.3kg) to customers just 30 minutes after they place an order.
The idea of using small unmanned aerial vehicles for delivering consumer goods has been around for a few years and Amazon is unlikely to be the only company looking to the skies to expand its customer base. One company in Australia is planning to start delivering textbooks in this way as early as March. The devices have also been trialed for use in all kinds of civic projects, such as to deliver medicine, help conservation projects or spot missing people in search and rescue operations.
It is even possible to train to become a small commercial UAV pilot in just one week—so in many ways, the path towards having all your purchases dropped from the heavens into your lap appears clear.
In many areas of life, tall people seem to get all the benefits. On average, they earn more money. They are more successful at work. Taller people are just more, er, highly regarded than their shorter counterparts.
But research is showing that short people might win out in one big way: they might be less prone to cancer, and even have longer lives, than tall people. Although the jury is still out on how much height affects longevity, it shows no signs of stopping our cultural preference for taller people.
The relationship between height and cancer risk is not especially new—scientists had proposed a link between height and breast cancer in women as early as 1975. Many studies, however, have focused specifically on breast cancer. Other studies have looked at how height affects cancer risk at numerous sites, but they have failed to adequately control for variables that could be affected by height, notes epidemiologist Geoffrey Kabat at the Albert Einstein College of Medicine in the Bronx.
Measuring the link between height and health variables, Kabat says, is much more complicated than determining someone’s height and seeing if they develop a particular disease. “You really want to make very sure that you have excluded the possibility that any association you find between height and cancer is not due to the interference of some sort of other factor,” Kabat said.
For one, taller people tend to weigh more than shorter people, even if their BMI isn’t any higher. For another, poor nutrition and stress can stunt height growth, and higher calorie diets have been associated with increased height. And that doesn’t even begin to take into account the psychosocial variables like increased income, education, and socioeconomic status.