Buscar este blog

Usan radares en las pirámides y es posible que hayan descubierto la tumba de Nefertiti

Juan Diego Polo en Wwwhat's new? - Hace 13 horas
En noviembre de 2015 se realizaron estudios con radares dentro de la cámara de la tumba del rey Tutankamón, y ahora han publicado los resultados: hay cámaras secretas detrás de la tumba, y la probabilidad de que se trate de la de Nefertiti, su madrastra, es extremadamente alta. El análisis con el radar mostró dos

¿Necesitas seis pilas pequeñas? Solo necesitas abrir una pila grande

Carlos Zahumenszky en Gizmodo en Español - Hace 13 horas
Suena a chiste, pero es así. Las pilas de 9V actuales no son nada más que seis pilas tipo AAAA empaquetadas en una sola pieza y enlazadas a un único conector. Para llegar hasta ellas solo hay que abrir la pila grande con mucho cuidado. Este vídeo lo explica. Read more...

The science of watching paint dry; new nanotech research could improve everyday essentials, from paints to sunscreen

New research has described a new physical mechanism that separates particles according to their size during the drying of wet coatings. The discovery could help improve the performance of a wide variety of everyday goods, from paint to sunscreen.

Acceptability of alternative drugs and strategies to prevent malaria in pregnancy in Kenya

Researchers have completed a study to assess the acceptability among pregnant women and health providers in Kenya of a new drug as an alternative to the standard drug used to prevent malaria in pregnancy.

New technology for land mine detection

In Colombia, large areas are teeming with mines that are almost impossible to detect with traditional methods. Researchers are now developing a new mine clearance technology, based on ground penetrating radar. In the long run, they are aiming at creating a handheld device that will detect different mine types on rough terrain without fail and which can be used in the same way as metal detectors.

Drastic decline of the flora biodiversity at the cultivated fields of Catalonia

The flora of cereal crops has declined dramatically in Catalonia (Spain) from the 50s to today according to a new study.

Crash study aims to make roads safer

It was an early-August evening in rural Wisconsin. An SUV traveling north along a two-lane road veered over the center line. Before landing in a ditch, the car hit a light pole, speed-limit sign and a 13-year-old pedestrian, who died at the scene.

How serious is inbreeding in show dogs?

A German shepherd with a sloping back that was awarded best of breed brought the dog show Crufts in for this year's annual bout of criticism. Viewers took to social media to accuse the owner of animal cruelty by suggesting that its unusual shape meant the dog must suffer health problems brought on by inbreeding – something the owner denied. This is a common criticism levelled at dog breeders, but how accurate is it and how widespread is the issue?

252P LINEAR brightens, and a close pass for BA14 PANSTARRS

Ready for the next big 'Comet of the Century?' Yeah, us too. Cometary apparitions are the big unknown in backyard astronomy, an eternal uncertainty in the clockwork goings-on of the universe.

Teaching computers to be more creative than humans

Associate Professor Julian Togelius works at the intersection of artificial intelligence (AI) and games—a largely unexplored juncture that he has shown can be the site of visionary and mind-expanding research. Could games provide a better AI test bed than robots, which—despite the way they excite public imagination—can be slow, unwieldy and expensive? According to him, the answer is resoundingly yes. Could an artificially intelligent operating system exhibit more originality than a human game designer? Togelius thinks so. "I'm teaching computers to be more creative than humans," he s... más »

Bunbury dolphins shown to be skilled seafood chefs

New findings by Murdoch University researchers have shown that local dolphins are the hottest seafood chefs in the south-west.

Researchers launch next generation of brain scanners

The next generation of magnetoencephalography (MEG) brain scanners is now under development and one of the key enablers to produce lower cost, high performance machines is a nano electronic device designed at Royal Holloway by Professor Victor Petrashov in the Department of Physics.

Scientific breakthrough protects computers from cosmic radiation

Researchers from France and Spain have developed a range of new technologies to make electronic systems tolerant to cosmic rays. These advances will allow electronic systems in aeronautical and space applications to become increasingly sensitive without compromising safety or reliability.

Novel technique used to study graphene's response to air

An international team of scientists led by the National Physical Laboratory (NPL) has performed novel measurements of graphene's electrical response to synthetic air, exposing a distinct knowledge gap that needs to be bridged before the commercialisation of graphene-based gas sensors.

New weather satellite delivers for WA forecasters

Six months into its operation, besides producing some incredible viral videos, Japan's newest weather satellite Himawari-8 has significantly improved WA's everyday weather forecasting.

Manufacturing one of the biggest and most complex magnets in history

Powerful superconducting magnets will confine ITER's plasma which is expected to reach 150 million ˚C. Basically, an impressive magnetic shield will entrap the hot gas and keep it away from the walls of the vessel of the world's biggest fusion machine. Discover the manufacturing progress of ITER's first Toroidal Field coil. It is 14 m high, 9 m wide and 1 m thick. Its weight is approximately 110 tonnes which compares to that of a Boeing 747!

Google's Go victory shows AI thinking can be unpredictable, and that's a concern

Humans have been taking a beating from computers lately. The 4-1 defeat of Go grandmaster Lee Se-Dol by Google's AlphaGo artificial intelligence (AI) is only the latest in a string of pursuits in which technology has triumphed over humanity.

Rick Osterloh, CEO de Motorola, abandona su cargo durante la reestructuración de Lenovo

Javier Lacort en Hipertextual - Hace 13 horas
[image: Rick Osterloh, CEO de Motorola, abandona su cargo durante la reestructuración de Lenovo] Rick Osterloh, CEO de Motorola, ha abandonado su cargo justo durante el proceso de reestructuración de Lenovo tras la integración de Motorola. Motorola no seguirá como marca, Moto sí. Menos de un mes después de haber podido charlar con él como responsable de la compañía, *Rick Osterloh* *ha dejado su cargo como CEO de Motorola* en mitad del proceso de reestructuración de la compañía tras su integración en Lenovo. El estado actual de esta reestructuración no es halagüeño para los nostálg... más »

L'Estat dispara un 62% les contractacions de funcionaris, amb 13.000 noves places

Ara.cat - Portada - Hace 13 horas
L'Estat dispara la contractació de funcionaris. El consell de ministres ha aprovat aquest divendres l'oferta d'ocupació pública del 2016, que inclou la convocatòria de 13.427 noves places, un 62% més que l'any passat. Aquesta xifra suposa tornar a nivells del 2009, a l'inici de la crisi econòmica, i és la convocatòria més alta que ha fet el govern espanyol de Mariano Rajoy, segons ha explicat el ministre d'Hisenda en funcions, Cristóbal Montoro, en roda de premsa.

Windows sigue siendo el SO más usado por programadores, seguido por Mac y luego Linux

Hector Russo en Geek's RooM - Hace 13 horas
[image: Windows sigue siendo el SO más usado por programadores, seguido por Mac y luego Linux] De acuerdo a un estudio de Stack Overflow, en el 2016 Windows sigue siendo el sistema operativo más utilizado por desarrolladores en ordenadores, mientras que Mac OS se afirma en un segundo lugar que le arrebató a Linux en el 2015. El estudio anual se llevó a cabo con la participación de 56.033 desarrolladores de 173 países, que tuvieron que contestar 45 preguntas. En cuanto a las distribuciones de Linux, Ubuntu es el más usado con el 12,3% de todo el mercado para desarrolladores, le sigue... más »

Esta máquina de vapor produce electricidad para hacer funcionar una Raspberry Pi

nacho@internality.com (Nacho) en Microsiervos - Hace 13 horas
Un par de *sopletes* calientan el agua que hay en el depósito de cobre, el *vapor* producido se dirige hacia un pequeño motor de *dos cilindros* que tiene un *motor eléctrico* acoplado al cigüeñal. Cuando el volante del motor de vapor hacer girar el *motor eléctrico* éste produce una corriente eléctrica de *5 voltios* que, convenientemente estabilizada con un circuito eléctrico, suministra la *electricidad* que hacer funcionar un ordenador *Raspberry Pi Zero.* Curiosamente la Raspberry no aparece en el vídeo, aunque la máquina de vapor tiene ese fin, según explica el usuario Alexz... más »

Plant-based alternative protein options emerge from the sea

When one hears the term “alternative protein source” tofu, tempeh and seitan are what typically come to mind. Researchers discuss three lesser known, but just as nutritious and palatable alternative protein sources.

How rocks shaped the Civil War

The most studied battleground from the American Civil War, from a geological perspective, is the rolling terrain surrounding Gettysburg, Pennsylvania. Here, the mixture of harder igneous and softer sedimentary rocks produced famous landform features such as Cemetery Hill and Little Round Top that provided strong defensive positions for the Union Army.

Biological field stations: Keeping a pulse on our planet

A recent article provides the first comprehensive inventory of the world's biological field stations. Its authors report 1,268 stations are operating in 120 countries -- from the tropics to the tundra, monitoring terrestrial, freshwater, and marine ecosystems. Long-term data collected by biological field stations are essential for underpinning environmental research, assessing environmental policies, and advancing conservation goals.

Baby monkeys grow faster to avoid being killed by adult males

Natural selection has shaped the ways in which babies grow in different species, including the rate or speed with which they develop. A new study by Canadian researchers suggests that some baby monkeys develop faster than others in the same population, and that this is best explained by the threat of infanticide they face.

PERK-opathies: Stress mechanism underlying neurodegeneration

The objective of a recent review is to highlight the impact of PERK in neurodegenerative processes and underscore the pathway as a reservoir of therapeutic targets.

Single brain cells reveal genes controlling formation, development

In one of the first studies to 'read' the genetic activity inside individual brain cells, neuroscientists have identified the genetic machinery that causes maturation in a young nerve cell.

Galapagos lakes reveal tropical Pacific climate since Biblical times

When it comes to Earth's climate, what happens in the tropical Pacific Ocean has an outsize influence. The climate state of the vast equatorial Pacific, which covers half the planet, affects weather patterns around the globe.

Homosexuality as common in Uganda as in other countries

Uganda has one of the harshest standpoints on homosexuality in the world. Homosexual acts are prohibited by law and have previously been suggested to warrant the death penalty. However, a new study shows that homosexuality among young people is as common in Uganda as in other countries.

How do you mine Bitcoin – and is it still worth it?

Most people are bamboozled by Bitcoin. It's shrouded in jargon and geek speak. It borrows physical metaphors from all over the place adding to the confusion. It talks of "coins", but there are no physical coins. You'll hear about "miners", although there is no physical digging or drilling. You'll also hear made-up words such as "blockchain". People shake their heads in confusion. The Bitcoin community itself doesn't even know for sure who invented Bitcoin – I even met one of those who claims to be the big founder.

Introducing Alfie—the prototype robot helping elderly people stay independent for longer

A robot being developed to help elderly people stay independent and active for longer has been named by residents of three local care homes where it is going to be tested.

K-12 threat assessment teams prove effective, without racial bias

A report released today examining the 2014-15 school-year implementation of Virginia public schools' threat assessment teams shows, in addition to continued success in keeping schools safe, the teams' disciplinary actions revealed no racial disparities.

Llega Civil War II: Marvel vuelve a enfrentar a sus superhéroes

Álex Barredo en Hipertextual - Hace 13 horas
[image: Llega Civil War II: Marvel vuelve a enfrentar a sus superhéroes] Los héroes de Marvel vuelven a dividirse en dos bandos cuando un nuevo personaje sea capaz de predecir el crimen. La Civil War II de Marvel reabre el viejo debate sobre perseguir un crimen antes de que se cometa. Marvel Comics está aprovechando las sinergías con Marvel Studios para traer al mundo una ¿inesperada? secuela de Civil War. La primera Civil War trataba el tema de las libertades y creaba un interesante debate utilizando a nuestros superhéroes favoritos para discernir con la retórica y los puños. En es... más »

Artur Mas: "Això meu és una rebel·lia pacífica, però és rebel·lia"

Ara.cat - Portada - Hace 14 horas
Fragment de l'entrevista d'Antoni Bassas a Artur Mas, expresident de la Generalitat. Podreu veure el passeig sencer aquesta nit a l'Ara.cat, i demà llegir-la al diari.

Méteo especial: Setmana Santa

Ara.cat - Portada - Hace 14 horas
Aquest cap de setmana arribaran més xàfecs, però bona part de la Setmana Santa s'entreveu amb força bon temps i temperatures més altes

No hay comentarios: