When you feel in spring in your step, thank tiny molecular motors in your muscles and tissues that make it possible.A paper in Science by researchers primarily from University of Washington, Seattle, proposed the novel idea that the molecular motors in muscle cells store elastic energy. Observing flight muscles in moths, they deduced that the springiness of these motors provides an additional boost to the power generate by muscles:Muscles not only generate force. They may act as springs, providing energy storage to drive locomotion. Although extensible myofilaments are implicated as sites of energy storage, we show that intramuscular temperature gradients may enable molecular motors (cross-bridges) to store elastic strain energy…. These results suggest that cross-bridges can perform functions other than contraction, acting as molecular links for elastic energy storage.Researchers from Europe, publishing in PNAS, found that collagen and fibrin exhibit non-linear strain response upon loading. This is another factor that provides resilience in movement.We show that the nonlinear mechanical response of networks formed from un–cross-linked fibrin or collagen type I continually changes in response to repeated large-strain loading. We demonstrate that this dynamic evolution of the mechanical response arises from a shift of a characteristic nonlinear stress–strain relationship to higher strains. Therefore, the imposed loading does not weaken the underlying matrices but instead delays the occurrence of the strain stiffening. Using confocal microscopy, we present direct evidence that this behavior results from persistent lengthening of individual fibers caused by an interplay between fiber stretching and fiber buckling when the networks are repeatedly strained…. Thus, a fibrous architecture in combination with constituents that exhibit internal plasticity creates a material whose mechanical response adapts to external loading conditions.This behavior is so interesting, they pass the news on to biomimetics engineers: “This design principle may be useful to engineer novel materials with this capability.”Once again, the CEH Law is confirmed: Darwin-talk is inversely proportional to the amount of detail discussed about biological systems. (Visited 33 times, 1 visits today)FacebookTwitterPinterestSave分享0
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Traditional geocacheFor most, the evolution of the geocache container begins with a sturdy great-great-great-grandfather geocache. It’s the iconic metal ammo can. But in one decade of geocaching, the geocache family tree branched off into dozens of directions.Each branch embodies the spirit of evolution. Geocaches now blend more and more into their natural environment. Say you place a cache on the outskirts of an estuary? There’s a bird geocache for that. You’re considering an urban cache on a park bench? We’ve heard of magnetic microcaches that resemble gum for that.Take a quick look at the picture below on the left. Guess how many geocaches are in that picture? Ok, I know there are a few caveats. There can only be one geocache every tenth of a mile and none of these are activated, but how many possible geocaches do you see? The answer is… six. The bird, those pinecones, that rock, even two of the sticks are actually geocaches.How many geocaches are hidden in this pictureJust enough room for a logGeocaches are not the only part of the geocaching equation to evolve. Geocachers developed a keener “geo-sense” over the past decade. Say that you placed a corn cob shaped cache in field of corn… the cache will be found.A cache like this one pictured at the bottom of the page is all in a days work for an average cacher.I’d love to hear your most difficult find. How many DNF’s did you log before uncovering the cache? Let us know, just post a comment to this blog.Thermometer reveals a geocacheShare with your Friends:More SharePrint RelatedThe evolution of geocachesNovember 19, 2019In “Learn”Rubik’s Cache (GC5YGFM) – Geocache of the WeekJuly 30, 2015In “Geocache of the Week”350 miles, all for a smiley. — Munich – Venice (GC1FPN1) — Geocache of the WeekJune 12, 2013In “Community”
marshall kirkpatrick Why IoT Apps are Eating Device Interfaces What it Takes to Build a Highly Secure FinTech … Related Posts The Rise and Rise of Mobile Payment Technology Role of Mobile App Analytics In-App Engagement In the battle between mobile web and native mobile applications, access to local hardware like motion sensors and the phone’s camera has traditionally been a major advantage held by native apps. One of many announcements made today at Google’s I/O developer conference was about a still-forthcoming development in the Android mobile operating system: browser apps will be given access to local hardware capabilities. Mobile developers have expected this to happen for some time and now await details regarding which of the competing standards in development that Google will support. Hopefully Google will support a standard implementation and not a proprietary system that would fragment the mobile web. Whatever Google does could well end up being baked into the Webkit core and could give hardware access to mobile apps on many more phones, including the iPhone.Specifically demonstrated today were web apps with access to the motion sensor, camera and to Google’s incredible voice recognition. The ability for web apps to use voice recognition and Google’s computational ability to interpret a user’s “intentions” were put together to demonstrate the kind of mobile virtual assistant feature that Apple got when it acquired Siri. Except Google will be enabling some amount of that kind of functionality to be baked into any web app.It’s not clear when these new capabilities will be opened up to web developers, but this is the kind of feature that could make developing on the Android Web much more appealing. Instant, permission-free, web based deployment and updating of applications with access to local hardware? Look out Apple.Mobile-Centric StandardsWe asked mobile web app developer Jason Grigsby what he thought of the news and this is what he said: “I’m not surprised at all, Nokia’s been looking at it, it just makes sense. It seemed like an inevitable thing, but it will be interesting to see what they are implementing: Bondi or JIL, for example. The wholesale application community is trying to standardize access but there are competing standards and efforts. Whatever Google anoints is what will win. Can expect commonality between browsers or will it be fragmented?”Not surprised, but is Grigsby excited? He believes this will be a major move in the direction of a mobile-specific development platform, unlike all the recent focus on HTML5. “Hell yeah, it’s about time,” Grigsby said. “We’ve been focusing so much on HTML5, which was started before mobile took off. With the exception of offline storage and geolocation, the rest [of HTML5] was started before mobile was big. Now Google will build this in Webkit and there’s a possibilitiy this stuff will go back into the Webkit core.”Bring on a standards-based, hardware-integrated, mobile web app focused development environment! Tags:#Analysis#Google#mobile#web
8 Best WordPress Hosting Solutions on the Market Related Posts Why Tech Companies Need Simpler Terms of Servic… Buying and installing a wall-sized display might seem ludicrous at the moment, but let’s bear with Microsoft for a moment — this is the future, after all. What Pahud’s video shows us, though, is how close this future is to reality.Some of what Pahud describes may seem familiar. Placing a finger on the screen opens a “palette” of available options next to it, similar to the radial menu that Microsoft included in its OneNote application. If the user spreads his fingers, the palette expands to include new options. Part of this could be enabled with a touch display; alternatively, a Kinect sensor could also be used to “see” how a user is actually interacting with the display.When a user approaches with a Windows smartphone, the phone syncs with the display. When the user is close to the display, the phone shows the palette options. Farther away, the phone shifts into a “remote control” mode, presenting a keyboard and allowing the user to search and control via his voice.“So in conclusion we have been looking at the strengths of the large display, the strengths of the phone, and combine them together as a society of appliances,” Pahud said.A second video, authored by Microsoft researcher Bongshin Lee, takes the concept of “palette” in a different direction. By drawing an “L” on the display, the SketchInsight technology concept draws a graph; writing the labels for the X and Y axes not only assigns values to both, but also begins filling in the data (from a predetermined source, I assume). In a nifty trick, drawing a battery icon populates the graph with the appropriate data, also using the elongated icon as a the element of a bar graph.Lee’s video isn’t nearly as impressive as Pahud’s demonstration, if only because the source of the data is never really made clear, nor is how the data should be bounded. Creating a pie chart merely by drawing a circle is a nice touch, however, and shows how data can be herded into the appropriate format using the appropriate tool.Microsoft also presented research papers on:Adaptive machine learning. As a front-end tool, this is a bit difficult to conceptualize. Microsoft showed off several examples of machine learning, ranging from the relatively trivial — using machine learning to decide the category of a business expense — to the more profound, such as using a manufacturing profile to determine whether a semiconductor wafer was defective or not.Analyzing viral content. Much as you would expect, Microsoft’s research showed that “viral” content doesn’t originate from a single source, but is spontaneously shared by a number of influencers, whose content ripples across the online sphere. But Microsoft researcher Jake Hofman also developed a tool that would help analyze the “clout” of individuals on the Web, and track the virality of content they share. The Kinect handgrip. While this may seem relatively trivial, Microsoft views the ability to close one’s hand into a fist — the “handgrip” — as the gestural equivalent of a mouse click, and the company said that it would be supported in future versions of the Kinect SDK.Microsoft’s TechFest doesn’t necessarily mean that these products will come to market and be built into next-generation Microsoft-branded products. But it’s a good indication that this is the direction the company is headed.Here are some more images from TechFest:Freeform Sketching: Using Microsoft’s SketchInsight tool, the user sketches an exampleicon, and SketchInsight automatically completes the chart by synthesizing data fromexample sketches. SketchInsight also enables the presenter to interact with the data charts.3D Scene capture: Using several live color and depth images, this technology builds a high-resolution composition of the visible surfaces in a scene using voxels, a sort of three-dimensional pixel. Unlike previous methods, Microsoft’s project captures people moving and talking, using the graphics chips found within a PC.3D Haptic Touch: A way to move through 3D models. The X and Y interactions come via X and Y touch interaction on the screen, visually scrolling in two dimensions. Pushing “into” the display physically moves the screen down, and the video renders the appropriate depth.Lead image courtesy of Microsoft Tags:#Microsoft#research#smartphone Maybe you’ve wanted to control your big-screen TV with your smartphone for years, even though the idea has been a nonstarter for most of that time. Now Microsoft, which insists that it sees large-screen computing devices playing a dominant role in the home and workplace, says it will make that a reality.On Tuesday, Microsoft kicked off TechFest, a research fair of sorts where the company’s engineers emerge from their darkened labs and reveal their notion of the tech future. And perhaps more important, how we’re going to get there.Over twenty projects will be on display, including older exhibits such as one that lets you animate household objects using your body. One of the most significant presentations came from senior researcher Michel Pahud, who showed off how users could interact with large-screen displays, either directly or using their phone.Why is this important? Consider the following concept video, which shows how Microsoft imagines users interacting with massive interactive displays projected onto walls and ceilings. It’s a showcase for what Microsoft calls “natural user interfaces,” or ways of interacting with computers via touch, voice and gestures instead of a keyboard. (Microsoft has authored similar videos before, such as the “smart glass” concept from 2009 and a similar video in 2011 that showcased holograms.)The problem with controlling displays such as TVs via smartphone is that the phone is usually sitting right next to a remote control — a purpose-built, and often superior, device. Top Reasons to Go With Managed WordPress Hosting A Web Developer’s New Best Friend is the AI Wai… markhachman
Related Posts Tags:#application development#CIO#enterprise#enterprise IT#Evans Data#HTML5#mobile#native The Rise and Rise of Mobile Payment Technology Matt Asay What it Takes to Build a Highly Secure FinTech … Why IoT Apps are Eating Device Interfaces Apparently, native apps have won. We even said so right here on ReadWrite. After all, Facebook apparently likes native more. Unfortunately, CIOs missed the memo, and the dirty little secret is that most of the world’s software, including apps, is written for use, not sale. That means that most of the world’s software is not going to follow what Facebook’s mobile strategy is, but rather what those stodgy enterprises do.Those stodgy enterprises? They’re all in on HTML5.I spent Wednesday afternoon with a who’s who of enterprise CIOs and CTOs in New York City, talking about Big Data, cloud and mobile. With the Facebook Phone in mind, I polled the group on its mobile applications. Every single executive – not one exception – was building hybrid HTML5 apps, meaning the bulk of the app is written in HTML5 with a native wrapper to improve performance, add camera access, etc.Every. Single. One.And not just a few such apps. The bulk of their apps were hybrid HTML5 apps, both for internal employees and for external customers. Going Native?Sure, there were some native apps, though generally not yet written for Android. (“We can’t figure out what to do about Android,” said one executive of a major financial services firm.) But overall, the CIOs I talked to, and there were roughly 100 in the room, were basing their mobile app strategy on hybrid HTML5 apps.The CIO needs are different from Zynga’s, or those of other consumer app developers. Many of the apps they’re building are informational in nature, or have such a stringent need for broad access that these enterprises simply can’t afford to alienate a particular mobile device demographic. They need to support iOS, Android, Windows, Blackberry, etc. And with the vast majority of mobile OSes now sporting HTML5-compatible browsers, the time is ripe for HTML5 apps.Still Hiring For HTML5The job numbers bear this out. While HTML5 can get pooh-poohed by consumer app developers like Facebook, it remains the hottest technology skill, as measured by jobs, more than holding its own with iOS and Android in absolute number of jobs:And trouncing both iOS and Android in terms of relative job growth:This corroborates Evans Data’s finding in early 2012 that 75% of mobile developers were using or expecting to use HTML5, a number that seems to have moved from aspirational to actual in 2013. Hence, while the media will tend to focus on what it knows best – consumer apps – CIOs are working away on HTML5 strategies. Just ask Accenture. Yes, there are tradeoffs when going HTML5, just as there are tradeoffs when going native. For enterprise CIOs, however, broad, cross-platform access to employees and customers makes HTML5 a winning solution.Image courtesy of Shutterstock. Role of Mobile App Analytics In-App Engagement
Let’s take a detailed behind-the-scenes look at how Steven Spielberg and company crafted one of the most iconic sequences in film history: The golden idol scene from Raiders of the Lost Ark.Top image via NY Daily NewsBehind-the-scenes peeks are a perfect way to understand everything that goes into making movie magic. Let’s look at the iconic opening sequence of Raiders of the Lost Ark, from previsualization to post-production.For reference, watch the scene one more time. The video below picks up just after the opening credits, as Indy and Satipo enter the temple and find themselves in the chamber of the golden idol.Video via Noble TreizeDevelopmentGeorge Lucas and Steven Spielberg developed the base concept for Raiders of the Lost Ark back in 1977, just as Star Wars was being released worldwide. It wasn’t long before Lawrence Kasdan was brought on to write several drafts of the script. The entire film hinged on setting the stage for the character and the narrative in the opening sequence.As for the character of Dr. Henry Jones Jr., Spielberg and company looked to Charlton Heston and his character from The Secret of the Incas. Then for the actual opening sequence itself, Spielberg remembered the seventh issue of the classic Uncle Scrooge Comic, “The Seven Cities of Cibola,” which gave him the inspiration to develop the temple sequence.Images via Paramount and MarvelOnce the final script was developed, Lucas and Spielberg shopped the film to the studios, which proved difficult given the budget needed for the film. Paramount finally took a chance on the film, though budget concerns were expressed. Lucas and Spielberg knew they were going to have to stay on task and on budget — something Spielberg had not done in his previous three films.Pre-ProductionIn order for Spielberg to stay on task and on budget, he had his artists craft storyboards for Raiders of the Lost Ark. These storyboards included the iconic temple sequence with the golden idol and out-of-control boulder.Image via Amblin EntertainmentStoryboarding isn’t for everyone — some directors like to use only a shot list — however storyboarding can be extremely helpful, as we’ve covered before here on PremiumBeat. Spielberg developed his traditional stick figures and then gave those drawings to his artists to convert into the final storyboards. These storyboards, as seen above, allowed the crew to see the director’s vision before a camera ever even rolled.Image via Elstree Film StudiosNow that everything was written out and storyboarded, the director and crew turned to production. The majority of the opening sequence was shot on set at Elstree Studios in the United Kingdom. However, exterior shots for this sequence were completed at Kauai island in Hawaii, the same location Spielberg would use years later to film Jurassic Park.Set DesignSet design is crucial to the success of a film, as quality set design will allow the audience to become lost in the world of the film. For the opening sequence of Raiders of the Lost Ark, Spielberg and company knew that converting the Elstree Studios soundstage into a Peruvian temple was going to be a tough task — but if done correctly, it would transport the audience to another place and time.Image via ScreencrushIn the image above, you can see the exterior shells of the set that make up the individual areas of the temple. The key for production designer Norman Reynolds was to make sure that each of the sets looked authentic while giving Spielberg and cinematographer Douglas Slocombe the freedom to frame and capture the images they desired.Practical EffectsSpielberg wanted to utilize practical effects as much as possible for the project, as this would give the film a very classic serial adventure type of feel. The VFX team from ILM worked closely with the director and set designer Norman Reynolds to ensure that every element on set felt real and authentic.Image via ScreencrushJust like set design, visual effects, no matter if digital or practical, have to fit within the existing mise-en-scène. Effects must not stand out — rather, they must blend seamlessly into the set design.Image via ScreencrushLuckily for Spielberg, he had an amazing group of VFX artists who had recently wrapped up duties on another little project called Star Wars. While there aren’t a wide range of special effects in the opening sequence, it does have its fair share: the prosthetic Satipo, the small arrows in the idol chamber, the fiberglass boulder (that weighed around 800 lbs), and even the Golden Idol with mechanical eyes.CinematographyThanks to storyboards, Spielberg and cinematographer Douglas Slocombe had the entire film already mapped out, which allowed them to begin shooting quickly, instead of searching for the shot.Image via Paramount PicturesEven though Spielberg and his artists crafted the storyboards and notated where movement was needed, Slocombe added his own visual flair to the film as well. Throughout this sequence, Slocombe utilized longer takes, some of which dolly in or out. These are utilized to convey a sense of tension, or in the case of Sapito, a sense of relief.This visual construction is in stark contrast to the twelve quick cuts that Slocombe used moments earlier to introduce Indy to the audience, as well as the composition of the images to come.Image via Paramount PicturesWhen Indy finally makes his way to the idol and swaps it out for the bag of sand, Spielberg and Slocombe change the pace and framing of the film. While there’s one dolly shot as Indy runs through the chamber, a majority of the shots are locked down on sticks and are short in duration. This escalates the pacing of the film to coincide with the frantic action. However, it still takes an editor to put this all together.EditingMichael Kahn is an absolute genius when it comes to editing. For Raiders of the Lost Ark, he utilized Spielberg’s storyboards and Slocombe’s perfectly paced visuals to craft an amazing story. However, it’s more than just trimming and pasting into place.Image via Paramount PicturesKahn utilized the all important technique known as the J-cut, plus the occasional L-cut in some instances. In the image above, Indy is about to exchange the bag of sand for the idol. As the idol sinks and triggers the booby-traps, sound effects created by Ben Burtt hint at something dangerous — then there’s jump cut to a wide shot as Indy realizes the walls are crumbling around him. This ends the slower pace of the scene’s beginning and unleashes a new frantic pace for the remainder of the sequence.Image via Paramount PicturesKahn didn’t just stop with the chamber destruction either. He utilized another J-cut as Indy hears something happening behind him. Kahn jump cuts to a wide shot, revealing a boulder rolling toward Indy. So, even though everything was “laid out” for him in the storyboards and in-camera cuts, Kahn still had to go through the edit and make sure everything made sense and that specific techniques were used to aid the audience experience.Musical CompositionJust as cinematographer Douglas Slocombe and editor Michael Kahn utilized the pacing of the film to emotionally effect the audience, conductor John Williams had to do the same thing with the film score.Image via IMDbKnowing where and how to use the right music is crucial. Williams starts the sequence with a slow, tension-filled score. When the idol drops, the music changes and the brass section rises as the score picks up pace. So, as apparent above, there are several components that go into crafting a scene. The key to pulling off these scenes is planning, planning, and more planning. Once you have your vision, put it down in a tangible medium. Once you do this, then you can really begin to build your scene before you ever even roll on a single camera. This will aid you greatly during principle photography and post-production alike.What other iconic movie scenes would you like to see from behind the scenes? Let us know in the comments below!
At least seven persons were injured in an attack on West Bengal BJP president Dilip Ghosh’s vehicle in Purba Medinipur district on Monday. Mr. Ghosh alleged that supporters of the Trinamool Congress were behind the attack. “Since the Trinamool Congress is unable to tackle us politically, they are targeting us with brute force,” said Mr. Ghosh. The BJP leader was visiting the district to attend a BJP meeting. He was shown black fags and stones were thrown at his car, damaging its windows. The attack was carried out near Contai bus stand. Some media persons who reached the spot to report the violence were also injured. Several motorbikes, which were part of Mr. Ghosh’s cavalcade, were also attacked. TMC leader and MP from the district Dibyendu Adhikari denied any involvement of the State’s ruling party in the violence. “The clash was a result of factionalism in the BJP. The party members are fighting over the post of district office-bearers,” he said.
London: Britain on Thursday ordered its navy to escort UK-flagged ships through the Strait of Hormuz after Iranian soldiers seized a tanker in the flashpoint entrance to the Gulf. “The Royal Navy has been tasked to accompany British-flagged ships through the Strait of Hormuz, either individually or in groups, should sufficient notice be given of their passage,” the defence ministry said in a statement. The week-long standoff over the British-flagged Stena Impero and its 23-member crew has inflamed tensions between the Islamic republic and the United Kingdom. Also Read – Saudi Crown Prince ‘snubbed’ Pak PM, recalled jet from USBritain responded on Monday by proposing a European-led mission that could secure the passage of vessels through the world’s busiest oil shipping lane. But France said Thursday it was not willing to send extra military assets to the Gulf, but would share information and coordinate its currently deployed assets. Iran had earlier warned Britain that it intended to retaliate for UK marines’ involvement of the seizure of its own supertanker near Gibraltar on July 4. Also Read – Record number of 35 candidates in fray for SL Presidential pollsBritain currently has the HMS Montrose warship in the Gulf and a handful of smaller naval vessels. The Montrose had tried to rush in to rescue the Stena but arrived too late to the scene. Britain has already raised its security level in the region to the highest level and advised all boats in Iranian waters not to enter the strait. Its guidance before Thursday was for ships to notify the navy and receive instructions on “the safest way to transit” into the Gulf. “It is not possible for the Royal Navy to provide escorts for every single ship,” now-former foreign secretary Jeremy Hunt told parliament on Monday. The UK department of transport had earlier advised British-registered ships not to sail through the area. Hunt told parliament that two to three UK-flagged ships pass through the strait daily. He added that the Montrose had escorted 30 merchant vessels through the strait in 17 separate transits as of Monday.