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Nitrous oxide, commonly known as laughing gas, is a simple chemical composed of two nitrogen atoms and one oxygen atom (N2O). Despite being used as an anesthetic since the 1800s, the effects it has on the brain are not well understood. In a new study published in this week in Clinical Neurophysiology, MIT researchers reveal some key brainwave changes caused by the gas.
A simple smartphone app combines the most reliable data and maps on global renewable energy potential, so you can get a better idea what's the right kind of equipment you need or if the investment is warranted in the first place. And it's all for free, too.
We'll take a look at the Man of War and see what you should do to stay safe on the beach.
Dylan O’Donnell, an amateur photographer, took one of the luckiest shots ever: the International Space Station past the moon. Any astro buff would be envious.
Comet lander Philae may be sitting on top of microbial life and not even know it – even worse, it has no way of figuring out if it actually is. According to two researchers, the comet’s characteristics (as well as computer simulations) might indicate that the surface may be teeming with microbes. The Rosetta spacecraft was […]
Paleontologists have discovered what looks like the earliest member of the Corytophanidae (also known as casquehead or helmeted lizards) judging from fossils collected in Wyoming. The ancient species is also the earliest ancestor of the modern basilisk, or better known as the Jesus Lizard because of its ability to skim the surface of water over short distances.
Adidas new shoes are trash – literally. The German company has announced the creation of a new type of shoes made from recycled garbage pulled out of the ocean; the sustainable prototype has the upper part made entirely of yarns and filaments reclaimed from illegal deep-sea gillnets and other ocean waste, while the bottom part is […]
We've kept you up to date with New Horizon's progress, and the pictures it took of Pluto; now, after 10 years and 3 billion miles, the shuttle will pass close to Pluto - only 7,800 miles away from it.
Germany is taking some serious strides in its attempt to reduce carbon emissions by 40 percent until 2020: the European country announced that it will shut down several coal-fired plants and move towards more sustainable energy sources. “Coal-fired plants with a capacity of 2.7 gigawatts will be shut down,” said the government sources, who declined to […]
Something as simple as eating more leafy veggies could significantly slow down cognitive decline and keep your brain healthier for a longer period of time. A new study found that nutrients and vitamins found in plants such as spinach, kale, collards and mustard greens help keep your mental abilities sharp.
According to an unusual study conducted by University of Vermont researchers, people with blue eyes may be more likely to become alcoholics – and researchers are trying to figure out why. Human eye color is a pretty strange thing – it’s an inherited trait influenced by more than one gene. These genes cause small changes […]
Spiders are more adaptable than we give them credit for, and they can make pretty good sailors – a new study has found that some spiders can use strands of silk to windsurf on the ocean surface. It’s been reported for centuries, even Charles Darwin noticed it: “ballooning” spiders flutter from the air into the sails […]
Remember the Koch brothers? They're industrialists and businesspeople who own the second largest privately owned company in the United States (with 2013 revenues of $115 billion); their main business is in manufacturing, refining, and distribution of petroleum.
A startup will allow voluntary internet detectives to study unusual medical cases and attempt to solve them. Millions of people suffer from rare or complex medical conditions for which they have received no diagnosis, but where a handful of doctors have failed, the collective force of the internet can do it – we can do it. […]
Call it Beercycling – gallons of beer-urine will be used to fertilize barley, which will ultimately become beer, and then urine again. It’s the perfect cycle. Denmark’s Roskilde festival is the largest music festival in Scandinavia and one of the largest in the world. Roskilde Festival 2013 had more than 180 performing bands and gathered around 130,000 festivalgoers, […]
The Danish-based Lego is one of the big companies in the world that's actually making large scale efforts to lower its carbon footprint and run more sustainable business. They don't seem to be doing it out of a fake corporate responsibility ethos either. Lego is actually innovating. I mean, when a company says it wants to ditch the raw material its business is based on for something that's more expensive and which might not even exist yet, you know they actually mean it.
For the past couple of years, John Rogers, a materials science professor at the University of Illinois, has been working on his pet-project: the Biostamp. True to its name, the device is basically a tiny electronic stamp, no larger than a quarter, that sticks to the skin and can be worn seamlessly. The whole time, the Biostamp collects on a variety of vital signs, depending on the embedded sensor, and is powered wirelessly via your mobile phone. It can analyze chemicals in your sweat; blood pressure; UV radiation and much more. Basically, it's transforming the way patients are monitored. In fact, it's changing the way people, sick or not, monitor their health. Imagine wearing a Biostamp all the time and receiving a notification on your mobile phone to visit your doctor ASAP because your blood pressure has been too high in the last couple of days.
The U.S. Fish and Wildlife Service has rejected a proposal to list North American wild horses as threatened or endangered, arguing that a horse is a horse, wild or tame, and proponents have failed to show how the behaviour of wild horses differs from that of domestic ones. The number of North American wild stallions has […]
MIT engineers demonstrated a working spectrometer that took a huge leap in scale from a huge, bulky lab gear to a portable piece of equipment that's small enough to fit in a smartphone. Spectrometer are essential to research nowadays, employed in everything from physics, to biology, to chemistry. To design the spectrometer, the MIT team made use of tiny semiconductor nanoparticles called quantum dots. Having a portable spectrometer could prove to be extremely practical .You can use it to remotely diagnose diseases, detect pollution or food poisoning.
In 2000, the CDC declared measles as eradicated in the US, meaning there was no more endemic transmission. That doesn't mean though, that it can't creep out from time to time, especially in communities where heard immunity is poor because of low rates of vaccination. This is attested by a woman who unfortunately died of the virus, making it a first in twelve years. The woman was taking medications that suppressed her immune system due to other conditions, and this made it very difficult for her body to fight another infection.
Seemingly small and delicate, seahorses are actually much more resilient than they look. Engineers have demonstrated that the seahorses’ prism-like tails are mechanically superior to the cylindrical ones; the discovery could lead to the development of more resilient robots. There are 54 species of seahorses, and while they may be significantly different one from the other, […]
A team led by scientists at University of British Columbia highlights the impacts of climate change on the world's oceans and marine life. Two scenarios were analyzed. One followed the changes that would arise if the world banded together to significantly curb greenhouse gas emissions; the other summarized impacts 100 years from now if we'd go on with business as usual. The report outlines the consequences under each scenario and found immediate action is required if we're to avert at a catastrophic outcome, particularly regarding the planet's oceans.
A team at University of Chicago made the most comprehensive woolly mammoth genome sequencing ever. By comparing its genome with that of its distant cousins, the Asian and African elephants, the researchers were able to determine which are the mammoth's specific genes. These were ran with libraries and repositories to identify what these do. We now know which of mammoth's gene shaped its uncanny skull and small ears, how it got hair to cover all its body or how the mammoth adapted a special fat metabolism and cold coping mechanism. To test their findings, the researchers transplanted a mammoth gene into a human cell. The kidney cell produced new proteins which were tolerant to heat or cold, as suspected showing their other genetic determinations are also likely correct.
Rising temperatures are fundamentally changing the way Australia's bearded lizards get their gender. Basically, the lizard's sex is not dependent on their genes as before, but on temperature. In time, the male chromosome could disappear, as more and more females are bred - the preferred sex. What this means is that if temperatures reach a critical level, then the lizards could become extinct due to lack of males. This has never happened before and it's as scary, as it is interesting.
Rosetta is a robotic space probe built and launched by the European Space Agency. Along with Philae, its lander module, the craft is performing a detailed study of comet 67P/Churyumov–Gerasimenko. The probe usually orbits 67P at a distance of a few hundred kilometers. Footage received from Rosetta over the last year showed a number of dust […]
As the US starts to thaw its relationship with Cuba, important economy, touristic and cultural prospects start to emerge; but as these prospects emerge, so to do environmental concerns. Cuban scientists are worried that as American tourists and money start flowing into their country, the environment will be the one to suffer. “We don’t have […]
In the lab, a team UC Santa Barbara demonstrated that an artificial pancreas that can automatically deliver insulin shots at a regular basis to diabetes patients. The biocompatible pancreas constantly monitors glucose levels and administers the insulin when its needed. This way there would be no need for cumbersome daily insulin injections. The researchers will soon start trials on animal models and if all goes well, clinical trials will follow shortly.
This little iron fish may look like a two bit souvenir, but what it can do is far more spectacular, not to mention useful. When added in boiling water, the fish-shaped object leaches just enough iron to offer up to 75 percent of daily iron needs of a person. Tests so far have proven that this simple, yet innovative the solution helped halve the cases of iron-deficiency anemia in Cambodian communities.
Women's faces are more attractive to men when they hit peak ovulation, past research showed. It's not clear what the amplifying signals are. One suggestion was that women's cheeks turn slightly red during ovulation, providing a subtle cue that enhance attractiveness. Using cameras specially designed to distinguish between subtle colour variations, researchers at University of Cambridge found that women's faces show an increased redness. Peculiarly, this difference is so small that it's not visually perceptible. Is the cue that subtle or can the enhanced attractiveness be attributed to some other factor or signal?
It's the kind of error you never want to pop up in your code: Google’s automatic image recognition software has apparently classified two black friends as 'gorillas'.
The Great Barrier Reef, which stretches 2,000km (1,200 miles) along the coast, is the world’s largest living ecosystem. Environmental groups are pushing to get the reef listed as “in danger” by the UNESCO, so that the Australian government would have to work harder to protect it from various dangers such as pollution, dredging, fishing and […]
Samantha Cristoforetti, an astronaut currently on board the International Space Station was allowed to take some extra food with her (astronauts are allowed to take “comfort food” with them for psychological reasons – a little something that reminds them of home). Today, she’ll be telling us how to make some space tortillas. Cooking in microgravity […]
A breakthrough research found that male and female mice use different cells to signal pain. This could explain why both more women suffer from chronic pain than men, and pain relief medication seems to respond differently in women.
In March, we were telling you about Tesla Motors' new development, a new battery that could take your home off the grid and eliminate one of the major problems associated with renewable energy - storing it. Now, Tesla is already rolling out the new generation with some remarkable feature. The coolest one? Liquid cooling!
A report issued by the World Health Organization and UNICEF states 2.4 billion people lack access to proper toilets. Defecating outdoors bears a significant risk to the fresh water supply and is associated with the death of 700,000 children each year which contact diseases like diarrhoeal.
Low and middle-income countries bear the most deaths associated with sugary drink consumption. About 3 out of 4 deaths related to drinking sugary drinks happen in developing countries. These drinks greatly contribute to obesity, which in turn is associated with Type 2 diabetes, cardiovascular disease and cancers of the breast, colon, esophagus, gall bladder, kidney, pancreas and ovaries.
Despite a huge gap in public acceptance, the theory of evolution and natural selection is not a controversial theory. It is widely accepted by the scientific community and is, in fact, one of the most successful scientific idea in history. Yet, billions of people around the world discard evolution and uphold a creationist view of how humans, other creatures or the whole cosmos came to being. Ironically, it may be the way that our own brains evolved and supported the adaption of our species that supports a natural predisposition towards creationism. This idea is supported by a paper published in Cognition which found persons who rely more on intuition than analytical thinking are more likely to discard evolution and vice-versa.
Last night, Jupiter and Venus nearly converged on the night sky, being so close that you actually don’t need a telescope to see their celestial dance. “Throughout the month of June 2015, the two brightest planets in the night sky, Venus and Jupiter, are going to converge for a close jaw-dropping encounter,”said NASA in […]
Joining sounds together to create a meaningful language was thought to be a human characteristic, but a new study published in PLoS Biology found that blabber birds also developed their own phonetic language, just like we did! Researchers also believe that studying these birds could give us hints of why and how our language evolved to what […]
Deep below ground level, 3,500 feet (1000 meters) down a Croatian cave, scientists have discovered a new species of centipede. They named this incredibly resilient creature Geophilus hadesi – earth loving Hades – in honor of Hades, the Greek God of the underworld and ruler of Hell. Centipedes are elongated arthropods with one pair of legs per body […]
The Great Wall of China, one of the most marvelous constructions on Earth is slowly fading away due to the reckless behavior of humans. The effects of travel and recycling of the stones for other constructions is taking a monumental toll on the Great Wall, and almost 30 percent of the structure is now gone.
NASA is preparing to send a drone to Mars by 2024 - they've already developed a small, lightweight craft that could conduct aerial surveys and identify potential landing areas and zones of interest.
Whether it’s Meatless Monday, Weekday Vegetarianism or simply cutting down meat consumption – people from developed countries are eating less meat, and it’s already making a difference. Even though some argue that cutting-back-consumption campaigns don’t push enough of a paradigm-shift, we’re already seeing the changes: 400 million animals were spared in the US alone in 2014 because […]
Today, ray-finned fish make up 99% of all fish species, but it wasn't always like this. In an attempt to find out what triggered this spectacular multi-niche dominance, paleontologists traveled back in time sort of speak and analyzed ancient fossils to see what the fish diversity makeup looked like millions of years ago. Intriguing enough, the ray fish practically exploded in their diversity right after the last great mass extinction which occurred 65 million years ago. An asteroid impact wiped out thousands of species, including all dinosaurs. But there was now enough room for other creatures to take their place. On land, mammals started filling in the large-scale niches eventually reaching a dominant position. In the water, it was the ray-finned fish that seized the opportunity.
Just as it seemed Ebola was gone for now, the disease starts to rear its ugly head again; a 17-year old was killed a month after Liberia was declared free of Ebola. Liberian authorities on Tuesday quarantined the Nedowein close to the capital of Monrovia, where the boy lived. The official announcement came quickly after. “Liberia […]
The effects of carbon dioxide (CO2) emissions are great and long reaching - a new study has found that pink salmon in the Pacific Ocean are threatened by increasing ocean acidification.
In a paper published this month in Proceedings of the National Academy of Sciences, a group of scientists explain the process through which plants like mustard came to be - as it turns out, an evolutionary arms race with a caterpillar played a key role.
Some 10% of the energy generated by a car's engine is lost due to friction between tires and the pavement. What if you could harness this lost energy somehow? A group at the University of Wisconsin-Madison in collaboration with researchers in China have found a ingenious way to collect and use this friction energy by effectively inserting nanogenerators into tires.
Just before sport camps and marathon training begins in the US, doctors report a new set of guidelines that should be reviewed to ensure athletes don't consume more water than they should. Drinking excessive amounts of water can result in potentially serious reductions in blood sodium a condition called hyponatremia. Last year, two high school football players died of exercise-associated hyponatremia (EAH). So, what do you need to do to be on the safe side? Just drink water when you're thirsty. If you have to drink in advance for various reasons - say, if you're a marathon runner - keep the excess water at sensible levels.
Paleontologists working in China have discovered fossils of an impressively armored worm that lived during the Cambrian, 500 million years ago. Called Hairy Collins’ Monster, this is one of the first creatures to develop a spiky armor. Today, the 180 species of velvet worms are pretty similar – they have tiny eyes, antennae, multiple pairs of […]
