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Watches might keep time in an absolute manner, but people don't. Each person perceives time differently depending on mood, and moreover this perception changes with age. "When you are courting a nice girl an hour seems like a second. When you sit on a red-hot cinder a second seems like an hour. That's relativity," Einstein famously said. Apparently, time slows down even when white folks are concerned not to appear racially biased, according to a study published in Psychological Science.
A novel mathematical model can weigh the mass of a pulsar - a rapidly rotating magnetized neutran star - using principles of nuclear physics, rather than gravity. Up until now, the mass of a star could only be determined in relation with other bodies, based on the gravitational pull these exerted. Now, using the new model scientists will be able to study pulsars in isolation, allowing for more precise measurements than ever before.
In the wake of the Chernobyl nuclear power plant explosion in 1987, hundreds of thousand had to move immediately without notice. Their lives changed forever. Many didn't have time to pack anything, as documented by the ghost towns around the fallout site still littered with toys, valuable items and other personal belongings. But while humans had much to suffer, the same can't be said about the wildlife. In the almost four decades since the dramatic disaster, wildlife and vegetation has simply sprung to life like never before. In some instances, there are more wildlife per square meter than in some of the busiest protected natural parks in neighboring Belarus. Turns out wildlife doesn't mind that much radiation - what they mind is humans.
Chilly peppers: hate them or love 'em. Few could have imagined the impact of Columbus' discovery of a spice in the XXVth century so pungent that it rivaled the better known black pepper native to South Asia. In only a couple of years ago, the red chilly was planted all over the globe after being brought from South and Central America. Today, it's one of the most widely used spices in the world. But is chilly actually healthy? Many studies seem to contradict one another, so the debate is far from over. Some scientists claim chilly acts against cancer and helps us stay healthy, but at the same time chilly can hurt the inside of the stomach and esophagus and can even lead to internal bleeding. All foods have their good and bad sides, though, so probably people are more interested in the net effects of ingesting a certain food, chilly or otherwise - doesn't matter. And finally, there's a study that seems to suggest that, overall, chilly is our friend. That's according to Chinese researchers who tracked the eating and health habits of 500,000 individuals and found those who ingested chilly at least two times a week had a mortality rate 10% lower than those who only seldom ate chilly or not at all. Those who ate the devilish spice six or seven days a week had an even lower risk of dying.
Despite decades worth of research, unbelievable computing power and sophisticated algorithms, one of today's best artificial intelligence can't score better than a four year old on a standard IQ test.
They say beauty lies in the eye of the beholder, but science had yet to have its final word. While there are some people that are generally considered more attractive than others, and likewise some that are seen as less attractive, the consensus is far from perfect when people in between are factored in. Each person seems to have his or her own checklist used to internally rate attractiveness depending on how the body is shaped, height, hair colour, muscles, symmetry and so on. However, what influences these factors? Are these nurtured by the environment, like who our friends are or what the media tells us what an attractive person should look like, or is it genetics? A new research that studied the preferences of twins and non-twins found that it's each person's life experience that counts the most.
An asteroid impact wiped out the dominant life forms on the planet, both on land and in the oceans, some 65 million years ago. Like in all matters of life, there are winners and losers, and incidentally those who had most to profit from the demise of the dinosaurs were also the weakest: mammals. Small, battered and restricted to only a couple of ecological niches, not only were the mammals more adapted to a post-apocalyptic Earth devoid of sunshine and with little food to spare, but once everything cleared they simply took over. Now, paleontologists have come across a totally new genus of ancient mammals that used to share the planet with the dinosaurs, but managed to survive the fallout and continued its lineage for millions of years after.
For every extra 10 cm in height from the median, the chance of getting cancer increases by 11% for men and 18% for women. The link was reported by Swedish researchers at the European Society for Paediatric Endocrinology meeting in Barcelona, Spain. While other studies have reported this link, this was the largest yet performed involving 5.5 million Swedish men and women ranging in height from 1 meter (3.3 ft) to 2.25 meters (7.4 ft).
A group of NGOs has filled a lawsuit in federal court against a ridiculously controversial law which makes it illegal for any citizen to take samples or photograph open lands in public or private property. As such, a person who isn't acting under governmental approval - say a concerned citizen - can't take samples from a contaminated river, photograph it or collect any meaningful evidence in these lines for the purpose of alerting the authorities.
The third largest emitter of carbon emissions, India, pledged it would reduce its emissions relative to its GDP between 33 and 35% by 2030 relative to 2005. India, a rapidly developing country, will continue its industrial expansion which includes, of course, building more coal plants and releasing more carbon emissions than it does today, however what the government, in fact, pledges is decoupling emissions from economic growth. It's a sound victory for the planet, but to achieve its goals India will require help from developed nations. Hopefully, this might be possible under a common climate-protection framework on a global level which will be discussed in Paris during the UN talks scheduled in November.
While everyone from Google, to Tesla, to BMW is engineering driverless cars, gearing up for an impeding auto revolution, a Chinese company went directly for a niche market: driverless buses.
The Scandinavian nation has set its mind on ridding itself of fossils fuels. To this end, the government announced it will increase spending on climate-protection measures for the next year bringing it to $546 million. That might not sound like much but Sweden is a small country which already uses energy very efficiently. It also gets three quarters of its energy from non-fossil fuel sources, mainly nuclear and hydro.
In what can only be classed as a breakthrough in medicine, a team at Washington University in St. Louis found a way to make an universal test that can identify virtually any known virus. The method works by analyzing bodily samples for signature genetic markers unique to each virus. It's surprisingly accurate, as the researchers report the test not only identified the viruses on par with standard tests, but found additional ones which would have otherwise gone unnoticed. Once it passes extensive clinical trials, doctors using the test could come up with a complete list of viral infections harbored inside a patient's body, correctly diagnose their condition and apply the right treatment. In some situations, it could mean the difference between life and death.
Enticed by warming waters, king crabs might soon make a run for Antarctica's continental shelf where they haven't been seen for at least 10 million years. As such, the fragile wildlife comprised of creatures like sea stars, sea worms, sponges, sea anemones, sea lilies and feather stars - all lacking protection against the crushing claws of the king crab - could face rapid annihilation.
When there's rain, let alone a storm, city streets form puddles and in some extreme cases get flooded. That's because concrete mostly keeps water out, and only a tiny volume gets absorbed. A company from the UK, however, has come up with such an innovative solution that it almost seems like magic were it not pure science at work. Namely, they came up with a new kind of concrete that allows more water to percolate through its gaps, so much that 1,056 gallons were gobbled up in under 60 seconds during a test. It all seems unreal - but it's as concrete as it gets.
The word on every tech executive's mouth today is data. Curse or blessing, there's so much data lying around - with about 2.5 quintillion bytes of data added each day - that it's become increasingly difficult to make sense of it in a meaningful way. There's a solution to the big data problem, though: machine learning algorithms that get fed countless variables and spot patterns otherwise oblivious to humans. Researchers have already made use of machine learning to solve challenges in medicine, cosmology and, most recently, crime. Tech giant Hitachi, for instance, developed a machine learning interface reminiscent of Philip K. Dick's Minority Report which can predict when, where and possibly who might commit a crime before it happens.
In front of hundreds of guests, Tesla's CEO, the ever resourceful Elon Musk, unveiled the company's new model: the Model X crossover. It's been a long heralded and waited vehicle, and it sure didn't disappoint. This beauty, all dressed in white, looks more like a bird than a car with its upward-opening "falcon doors". It also flies like one, reaching 0 to 60mph in 3.2 seconds making it the world's quickest SUV. Wait 'till the kids see it.
Despite manufacturers have tirelessly designed new types of razor blades for a cleaner shave, the process has stayed virtually unchanged for thousands of years. The difference between a modern razor blade and an ancient roman shaving knife isn't that large, on a fundamental level at least. This may set to change if the Skarp Laser Razor makes its way into the shaving kit market. The gadget is basically a high-tech razor - named so only by function - that uses a highly focused laser beam instead of a blade.
"Hey, what did you find" "We found a bio-florescent turtle!", a researcher triumphantly declared. David Gruber, a biologist at City University of New York, and colleagues made the find while diving in the Solomon Islands this July. Previously, researchers have found ever growing evidence of bio-luminescence and bio-fluorescence in the animal kingdom, from coral to seahorses, but this was the first time anyone has laid sight on a glowing reptile.
Even though wages today are higher than they were in the '70s, after you account for inflation these are only marginally better. At the same time, productivity has almost doubled according to a reported issued by the U.S. Census Bureau. In other words, despite the economy has significantly grown in the past 40 years, American workers got a pay cut - not a raise.
Endemic to Andes Mountains of Chile, Argentina, Bolivia and Peru, the Andean Cat is one elusive feline. It's only been sighted a couple times in the wild, let alone photographed. Some researchers were lucky though after their camera traps photographed a gem: an adult and her kitten.
During an extraordinary conference hosted by NASA, a team of researchers report that flowing briny water is flowing out of Martian mountain slopes. Let that sink in for a moment. Now, time to pull yourself together and check out some more details.
After they analyzed more than 2,000 traditional Indian recipes down to the molecular levels, scientists now think they know what makes Indian cuisine so appealing. Unlike western dishes, Indian recipes are based on ingredients whose flavors don't overlap for a unique taste that dumbstrucks anyone who tries it for the first time.
Another boost for India's low-cost, but extremely promising, space program took place this morning after the country launched its first space observatory in space. Blasting from the spaceport of Sriharikota, close to Chennai, the Astrosat telescope was deployed without any difficulties in Earth's orbit, some 650 km above. Along with it, some six satellites piggybacked, four belong to the US, one to Canada and the last to Indonesia.
A 30KW high-power laser was demonstrated by Lockheed Martin after it was used to disable a vehicle more than a mile away. One of the great perks of laser weapons is their phenomenal accuracy. To showcase this, the weapon was directed specifically on the hood of the vehicle, where it fried the engine. The beam from the Advanced Test High Energy Asset, or ATHENA, is believed to be most powerful ever documented in a laser weapon.
Deep in the Arctic, nestled inside an icy island lies one of humanity's backup plan: the Svalbard Global Seed Vault. Open in 2008, the center houses seeds from virtually all the plants on the planet be them wild, domesticated or genetically modified. In case of a global calamity of any kind (nuclear war *cough), these seeds would be put to good use if a species is faced with extinction or research is required on such seeds. This is precisely why the first withdrawal request from the vault was made by Syrian researchers.
A couple of quadrotors wove a bridge out of polyethylene fiber rope in an intricate dance. Some 120 meters of rope were used by the quadrotors to bridge the 7.4-meter gap, neatly tying knots, links, and braiding. Ultimately, the final test was passed after an ETH Zurich’s Institute for Dynamic Systems and Control student crossed the robot-manufactured bridge.
I love disruptive technologies, and 3D printing is undoubtedly one of the leading such movements in the 21st century. This kind of tech will democratize manufacturing, moving it away from 3rd world sweatshops to your own garage. And no, you don't have to be a geek to own one. Ten years from now, it should be as easy to use and as widespread in homes as a regular ink printer. But for now, 3D printing is limited, particularly as far as electronics are concerned. Usually, you have to print the plastic parts, then order electronic parts like circuits, chips or motors, before finally assembling it all together yourself. You can't have a global manufacturing revolution if you need to be a lab wiz to print a new TV remote control to replace the one the dog just shred to pieces. But this is all changed. We're just now seeing the first steps that might one day lead people to print their own smartphones.
The Great Barrier Reef, which stretches 2,000km (1,200 miles) along the coast, is the world’s largest living ecosystem. Yet it's being threatened and every year the coral retreats at the hand of pollution, tourism, farming and pests. One such pest is the crown-of-thorns starfish which attaches itself to the coral and destroys it with its venomous thorns. Various pest control measures have been tried, but none proved more effective than injecting the animals with vinegar. James Cook University researchers tried out various concentrations of vinegar, needle size and injection locations until they found the sweet spot for a 100% kill rate within 48 hours of contact. Widespread and sustained (you have to control the starfish every year following breeding season) could thus help save the Great Barrier Reef, or at least buy time until we address the more serious causes leading to its destruction.
A while ago I wrote about how the fossil fuel divestment movement is gathering a huge momentum, as more and more funds, universities and companies are choosing to migrate their financial assets away from fossil. The movement is spearheaded by Bill McKibben, one of the founders of the 350.org group, who first organized rallies and lobbied key partners. "Almost from the start, academics have called it the fastest growing such anti-corporate campaign in history, and it’s clearly accelerating by the day,” said McKibben. But I don't even think McKibben himself predicted how far divestment would go. It was launched more like an awareness campaign on the dangers of global warming. It's grown fast, for sure, but this fast? Let me run some numbers: according to a report released by Arabella Advisors, $2.6 trillion in assets have moved away from fossil portfolios or 50 times more than last year. That's not just a dent anymore - that's serious cash!
No kidding, Stanford researchers actually showed it's possible to cool solar panels by applying a special coating that reflects some of the heat back into space. The coating, called a photonic crystal cooling system, is transparent. This allows the light to reach the PV cells so these can generate energy, but - crucially - some of the heat is reflected back in space. It's so good that the researchers showed their PV panels can even stay below ambient temperature, which is incredible by itself. If you know a thing or two about solar panels, then you'll remember their efficiency is directly related to temperature. The cooler a panel is, the more of the sun's energy it can convert into electricity. And we're talking about a mere coating, which shouldn't be too difficult to scale. Bit by bit, you if you multiply the extra efficiency by millions of panels you end up with a huge useful energy gain. This may be a game changer.
Some researchers have made an interesting connection: if you measure the complexity of life or how big the genome is you find it increases at a rate that seems exponential. It's very similar to Moore's law, which suggests the number of transistors over the same surface area on a chip doubles almost every two years. You can extrapolate both forward and background. Eventually, if you extrapolate down enough you'll find the point of origin. In other words, it's possible to estimate when life first appeared based on life's complexity graph.
Computer chips today have billions of tiny transistors just a few nanometers wide (a hair is 100nm thick), all crammed up in a small surface. This huge density allows multiple complex operations to run billions of times per second. This has been going on since the '60s when Gordan Moore first predicted that the number of transistors on a given silicon chip would roughly double every two years. So far, so good - Moore is still right! But for how long? There's only so much you can scale down a computer chip. At some point, once you cross a certain threshold, you pass from the macroworld into the spooky domain of quantum physics. Past this point, quantum fluctuations might render the chips useless. Moore might still be right, though. Or he could be wrong, but in a way that profits society: computer chips could increase in computer power at a far grater pace than Moore initially predicted (if you still keep Moore's law but replace transistors with the equivalent computing power). This doesn't sound so crazy when you factor in quantum computers or, more practical, a 3D computer architecture demonstrated by a team at Stanford University which crams both CPU and memory into the same chip. This vastly reduces the "commuting time" electrons typically have to go through while traveling through conventional circuits and makes them more efficient. Such a 3D design could make a chip 1,000 faster than what we typically see today, according to the researchers.
The biggest pariah of the century, NSA whistleblower Edward Snowden, had a "geek to geek" hour long talk with Neil DeGrasse Tyson, part of the StarTalk radio show. The two had an interesting discussion about lots of stuff from science, to chemistry, to space. Even 9/11. It's worth mentioning that Snowden made his presence felt through a robotic telecomm machine which he remotely controlled from Moscow, his asylum. Perhaps, the most interesting moment from the episode is their chat on encryption, a topic where Snowden is particularly an expert. It's so obvious I'm surprised I've never heard this idea before: the reason why we've yet to pickup any messages from an intelligent extraterrestrial species might be because this data is encrypted.
Veteran astronaut Scott Kelly launched in March, 2015 aboard a Soyuz rocket for a record breaking one-year stay at the ISS. Instead of three to six months, Kelly along with his Russian colleague, Mikhail Korniyenko, will spend 12 months so scientists can assess how his body responds to the stress. For instance, we know that living in microgravity atrophies muscles and deteriorates vision. Kelly isn't too worried, though. When not busy operating the International Space Station, Kelly is engaged in one of the most pleasing hobbies (for those of us living back on Earth, that is): space photography. Here are just a couple of his most amazing shots shared by Kelly on his facebook or twitter account. He updates these very frequently, even a couple of times a day, so be sure to tune in for some more gems.
A team working at the Francis Crick Institute in London applied to the Human Fertilisation and Embryology Authority for a permit that would allow them to edit genes in a human embryo. If allowed, this would lead to the very first genetically modified embryo in the UK. The scientists claim they need approval to do basic research that may " improve embryo development after in vitro fertilization (IVF) and might provide better clinical treatments for infertility,” and not for clinical research. Either way, the controversial practice is banned in all Western countries and virtually banned, although not explicitly, in the US.
Syrian refugees are making headlines all over the world, but while their story is worth covering, there are millions other refugees in Asia, Central America or Africa that are in the same boat. According to the U.N., 59.5 million people were displaced due to “persecution, conflict, generalized violence, or human rights violations” in 2014 or 8.3 million more than the year before. To escape persecution, refugees take hidden routes out of their own country which are often controlled by smugglers and can be extremely dangerous to cross. Everybody was heartbroken to learn about the story of three-year-old Aylan Kurdi, who was found washed ashore in Turkey, but few know that 2,900 other people died drowned or asphyxiated on their way to a safe haven this year alone. National geographic just released five great maps that explain the global forced migration patterns
A dubious pharmaceutical startup recently bought the rights to a drug that treats a parasitic infection, then raised the price 500-fold seemingly over night. The drug targets a somewhat rare condition that affects immune compromised pregnant women, but also malaria and AIDS. Ironically enough, it was developed by a much hated big pharma company, GlaxoSmithKline, in 1953 and used to cost $1 a pill only a couple years ago. It has since traded hands twice, before coming under the control of Turing Pharmaceuticals, a start-up run by a former hedge fund manager.
Such materials combine the best properties of glass and metals into one amazing product.
This Wednesday, Sen. Marco Rubio, New Jersey Gov. Chris Christie, and Wisconsin Gov. Scott Walker were engaged in a two hour long debate on CNN. In 120 minutes, climate change was only treated for three minutes, which to me is saddening since it shows the moderators care as little about the effects of climate change on this country and the world at large as the Republican Presidential candidates.
This may be the most annoying video game in history.
The most detail study of its kind found air pollution is responsible 3.3 million premature deaths. Based on current trends of agricultural and industrial expansion, the study projects 6.6 million will succumb to soot and smog in 2050, or double today's death toll. Most of these fatalities will be registered in developing nations like India, Pakistan and China.
Every year, the Ig Nobel Prize is awarded to ten lucky winners. To qualify, you need to publish research in a peer-reviewed journal that is considered "improbable": studies that make people laugh, but think at the same time.
While the name might fool you at first glace, black holes are anything but empty.
By 'tickling' select membrane channels you can effectively control neurons, by activating or deactivating cells. You can do this using electrical currents, like we see very well illustrated in brain-computer interfaces; light (the field of optogenetics); and sound (sonogenetics). Yes, sound. This was only recently demonstrated by researchers at Salk's Molecular Neurobiology Laboratory who used ultrasounds to control neurons in the nematode Caenorhabditis elegans.
A team of Dutch and Belgian researchers demonstrated an electric circuit coupled with a magnetic insulator. The circuit uses so-called 'spin waves' instead of electrons to transmit information, something that was considered unpractical until not too long ago. The findings could help lead to a new class of electronics which are far more efficient since there's less heat loss.
Corn farmers around the world owe bats at least $1 billion, seeing how they ward off pests like insects. The findings were made by a group at Southern Illinois University who devised an experimental exclosure in order to estimate bats' contribution to pest control.
Saturn's moon, Enceladus, is covered in a thick icy crust, but beneath it might lie an ocean of liquid water despite there are minus 201 degrees Celsius on the surface. This is a theoretical assumption, which is however backed by very solid indirect evidence. Gushing plums of water from the moon's south pole also point to this conclusion. If this is true, Enceladus can be envisioned like a gourmet candy: a hot core (maybe chocolate?), surrounded by a layer or water, and all covered in a crunchy crust of ice.
Reconstructive surgery just got an upgrade after a patient who had lost four ribs and part of his sternum had a 3-D printed titanium replica fitted instead. This was the first such procedure. Although the operation was a sound success with the replica matching like a glove, doctors say that this sort of intervention is only for really extreme cases. You can't become Wolverine overnight, not exactly at least.
Hydrogen is a great medium for storing energy. It can be used as an alternative to batteries to store the excess energy from renewable energy systems like solar panels or wind turbines, and can be released from a tank to power a vehicle equipped with fuel cells. More than a decade ago, these prospects hyped the so called "hydrogen economy". Governments and funding agencies drew up ambitious plans to develop cheaper fuel cells and to enable cars to store practicable quantities of hydrogen. In 2003, President George Bush committed $720 million to the research effort. But eventually... it all turned out to be a pipeline dream mostly because of two shortcomings: hydrogen is very expensive to store and make; from renewable sources at least.
