Posts

July 18, 2014

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2:00 PM | Moving pyramid stones on sand
Of all the seven wonders of ancient times, only the pyramids of Egypt remain on their feet. The technical means Egyptians had that many […] Read more The post Moving pyramid stones on sand appeared first on Mapping Ignorance. Related posts:The tough aspects of walking on sand Getting the best grip: how ridged surfaces affect finger pad tribology Where should you place a business if one of your customers keeps moving?
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1:34 PM | Tennis Ball Plus Soccer Ball Equals Blown Minds
As noted last week, I went to SteelyKid’s day camp on Tuesday to talk about being a college professor. This was a little awkward, because I was scheduled to talk to kids ranging from not-quite-three to six-and-a-bit, and really, what do they care about the daily routine of physics faculty? So, I did a simple…
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1:11 PM | How Many Metabols Does that Cost, Anyway?
Arm swinging reduces the metabolic cost of running Swinging the arms clearly saves energy for runners, and helps to minimise the amount that we rotate the body while swinging our legs, which led Arellano and Kram to wonder whether the metabolic benefits of arm swinging outweigh the cost of carrying the limbs.
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12:49 PM | A thicker crust on Vesta questions how it was baked
Billing its mission as a journey to the beginning of the Solar System, the NASA Dawn probe has revealed more information about the asteroid Vesta that has scientists both eager and cautious about what they have learned. The second largest…Read more ›
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12:28 PM | Suicide For Birthday Best Present Ever
     Today is my 43rd birthday. When I was 34 years old, I walked along a narrow river through the city of Nanning in the south of China. I was lonely and depressed, no matter the PhD degree I had recently obtained, my freedom, the beauty all around, the women I could easily befriend wherever. I came to the conclusion that my life is not worth its suffering, and that it must either change, that I must change, or it is idiotic to go on living. I asked myself: read more
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12:23 PM | Operation Smoke Puff, HAARP, Chemtrails, the Ionosphere, and Crowd Sourced Citizen Science
There's an ongoing effort to save HAARP from the demolition block[4], and as it inevitably does in all matters HAARP, the topic of chemtrails came up.  Chemtrails are by and large considered to be an urban legend, but like all good legends, it turns out there's more than a trace of truth embedded in the story  Perhaps the chemtrail legend has propagated so well because the ham radio community at large was involved in the first experiment that might have blossomed into the chemtrail […]
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11:10 AM | Ou4: a huge, extended and faint bipolar outflow only ~ 700 parsecs distant
Image credit: Romano Corradi/(Instituto de Astrofísica de Canarias). Text by the incomparable Astronomy Picture of the Day (APOD) where I recommend you go for links to further web material concerning the discovery. This nebula is very faint, but also very large in planet Earth’s sky. In the mosaic image, composed with narrowband data from the […]
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10:33 AM | Using nanofiber mats to extraxt uranium from the ocean
The U.S. Department of Energy selected a University of Alabama start-up company for an approximate $1.5 million award to refine an alternative material to potentially extract uranium from the ocean.
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8:27 AM | Nature's strongest glue comes unstuck
Over a 150 years since it was first described by Darwin, scientists are finally uncovering the secrets behind the super strength of barnacle glue.
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4:00 AM | Al via i nuovi esperimenti sulla materia scura
L’Ufficio di Scienza del Dipartimento di Energia (DOE) degli Stati Uniti e la National Science Foundation (NSF) hanno annunciato in questi giorni il finanziamento di tutta una serie di progetti allo scopo di cercare nuove tracce dell’enigmatica materia scura con una sensibilità molte volte superiore a quella che caratterizza gli attuali esperimenti. Denominati Generation 2 […]
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1:00 AM | The Harmonograph
Anita Chowdry is an artist based in London. While many are exploring electronic media and computers, she’s going in the opposite direction, exploring craftsmanship and the hands-on manipulation of matter. I find this exciting, perhaps because I spend most of my days working on my laptop, becoming starved for richer sensations. She writes: Today, saturated […]

July 17, 2014

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10:55 PM | Saddle-points and today’s weather
I've been following the weather with interest this week. First of all, I was very glad when the wind and rain disappeared late last weekend. We were at a wedding in Whakatane on Saturday afternoon/evening, and boy, did it rain. With the wedding in a garden in something that was a bit more substantial than a marquee (think marquee with hard walls and floor), with a portaloo outside,  and a four minute walk up a long, dark, mud and puddle infested driveway in a storm separating you from […]
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7:25 PM | Future electronics may depend on lasers, not quartz
Nearly all electronics require devices called oscillators that create precise frequencies - frequencies used to keep time in wristwatches or to transmit reliable signals to radios. For nearly a century, these oscillators have relied upon quartz crystals to provide a frequency reference, much like a tuning fork is used as a reference to tune a piano. A new approach could ultimately replace the quartz crystal frequency reference - technology in use since the 1920s.
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7:19 PM | 'Nanocamera' takes pictures at distances smaller than light's own wavelength
Researchers have demonstrated that an array of novel gold, pillar-bowtie nanoantennas can be used like traditional photographic film to record light for distances that are much smaller than the wavelength of light. A standard optical microscope acts as a 'nanocamera' whereas the pillar-bowtie nanoantennas are the analogous film.
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6:11 PM | Ultrafast x-ray laser sheds new light on fundamental ultrafast dynamics
Ultrafast X-ray laser research has provided scientists with a snapshot of a fundamental molecular phenomenon. The finding sheds new light on microscopic electron motion in molecules.
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4:44 PM | First ab initio method for characterizing hot carriers
Researchers have developed the first ab initio method for characterizing the properties of 'hot carriers' in semiconductors. This should help clear a major road block to the development of new, more efficient solar cells.
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4:32 PM | Matematica automobilistica: curve di Bézier e metodo della continuazione
E' interessante osservare come fino a una trentina di anni fa almeno l'industria automobilistica, almeno quella non italiana, aveva nella matematica una delle linee di ricerca fondamentali. In particolare ci sono due esempi cui sono incappato recentemente, le curve di Bézier e il metodo della continuazione.Iniziamo con le prime: le curve di Bézier sono delle particolari curve parametriche sviluppate dall'ingegnere Pierre Bézier per la Renault da utilizzare per il design […]
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4:27 PM | Physicists reveal quantum effects in biological oxygen transport
Physicists have created a unique combination of computer models, based on the theory of quantum mechanics, and applied them to a previously well characterised protein found in muscle to develop a new picture of how biomolecules transport and store oxygen.
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2:23 PM | Magnetic nanomaterials draw molecules from live cells
Researchers have devised a new method for extracting molecules from live cells without disrupting cell development, work that could provide new avenues for the diagnosis of cancer and other diseases.
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2:16 PM | Plasmon-enhanced polarization-selective filter
This structure composed of multiple holes array by filling it with nonlinear medium combines the characteristics of selectable wavelength, enhanced transmission, polarization separation and output control by the intensity of incident light. This result is useful for integrated optical circuits and on-chip optical interconnects.
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1:55 PM | Haydale Announce Major Agreement to Accelerate Commercialisation of Graphene
Haydale, the company focused on enabling technology for the commercialisation of graphene and other nano materials, has announced a major consulting agreement with The InVentures Group to accelerate the commercial application of its patent applied for plasma functionalisation technology in graphene, carbon nanotubes and other high performance nanomaterial systems.
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10:57 AM | Understanding graphene's electrical properties on an atomic level (w/video)
For the first time, researchers have used a cutting-edge microscope to study the relationship between the atomic geometry of a ribbon of graphene and its electrical properties.
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10:48 AM | Micro-system-handling With Piezosystem Jena
Fiber gripper from piezosystem jena for safe and damage- free precise handling of smallest elements.
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8:55 AM | Magnetically controlled nanoparticles enhance stroke treatment
Scientists have developed a new technique to enhance stroke treatment that uses magnetically controlled nanomotors to rapidly transport a clot-busting drug to potentially life-threatening blockages in blood vessels.
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8:51 AM | Supercomputers reveal strange, stress-induced transformations in monolayer materials
Researchers supercomputer simulations to map and compare the transformations and breaking points of graphene and other promising monolayers.
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8:16 AM | As The Features Shrink, Irresistible Materials Grows
Latest technology results from Irresistible Materials have demonstrated a significant jump forwards in achievable resolution via its EUV photoresist. The team have recently demonstrated 13 nm halfpitch resolution patterning, together with promising results at 11 nm halfpitch.
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7:28 AM | DNA sequencing reaches new lengths
Sequencing technologies have made it cheaper and faster to read the sequence of bases on a strand of DNA. A promising technology to take these advances further is nanopore sequencing. Individual strands of DNA are moved through a nanopore gap not much wider than the DNA itself. As the DNA passes through the nanopore, continuous information is gained about the sequence of individual bases - the A, C, G and Ts that make up DNA. Researchers now have developed a nanopore sequencing technique […]
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6:20 AM | Neues Verfahren: Physiker messen Reibung in einem Schmiermittel auf molekularer Ebene
Wissenschaftler haben ein neues Verfahren entwickelt, um die Reibungskräfte in Schmierstoffen auf molekularer Ebene zu messen. Dabei konnten sie den schichtartigen molekularen Aufbau des eigentlich flüssigen Schmierstoffs deutlicher sehen als mit bislang gängigen Methoden.
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6:10 AM | Digital Surf Acquires Image Metrology
Digital Surf, a leading provider of surface imaging and metrology software for microscopes and profilers, and Image Metrology, a leading provider of nano- and microscale image processing software, have announced that they are joining forces.
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4:00 AM | LHC rivela un evento molto più raro di Higgs
Gli scienziati che lavorano all’esperimento ATLAS presso LHC, il più grande e più potente acceleratore di particelle, hanno pubblicato i risultati relativi alla prima evidenza di un processo fisico che potrà essere utilizzato per verificare il meccanismo mediante il quale la particella di Higgs conferisce massa alle particelle elementari. Si tratta di un processo molto […]
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