Yeah, that one was way too easy. :-) Anyway, it wasn't all kung fu, as many Chinese martial arts were represented at today's CACMA tournament in Charlotte. It was my first martial arts competition in almost 20 years since went to Collegiates for Taekwondo. I felt pretty decent with my performance but was disappointed with my total brain freeze for 5-6 seconds. Still got 1st place, but there was only1 other person in my division. If I go to the Kuo Shu Federation competition in Maryland this July, it will be much tougher!
I took about 1000 photos, which will take some time to sort and edit. Shooting with the Canon 7D Mark II was a lot of fun!
Looking at the video, there is clearly a LOT of room for improvement, but it was a good start. Next year, I will train for sparring and push hands, too.
My 6 year old French Bulldog Izzy was stolen from my backyard today 3/25/15. The back gate at our house was tampered with. Our pug is still here but the police think someone stole the French bulldog to sell on Craigslist. Please share this and please help bring my baby home!! She is an older dog now and she is deaf and has severe seperation anxiety. We will offer a reward for her return. Please contact firstname.lastname@example.org with any info
Suppose you want to balance a ruler horizontally on your finger. To to this you’ll likely place your finger in the middle of the ruler, so that half is on one side and half on the other. Intuitively, you recognize that the middle makes both sides symmetrical, which is why you put your finger there. In other words there is a connection between the symmetry of the ruler and the physics of balance.
Symmetry is something we all tend to recognize, but probably find hard to quantify. Things like mirror symmetry are easy to describe, but what about the image above. It gives a feeling of symmetry, but exactly how would you describe it? In the same way, we generally have an intuitive feel for the way symmetry is related to the physical world, such as balancing a ruler on our finger, but quantifying that connection is difficult.
This is why Emmy Noether should probably be put in the same group as Isaac Newton and Albert Einstein as one of the greatest physicists who ever lived, because in 1918 she published an elegant and mathematically precise connection between symmetry and physics. It is now known as Noether’s Theorem, and it is so subtle and powerful it is hard to describe without mathematical formalism.
But I’ll give it a try.
In physics, symmetry is the ability to change a part of a system while the whole remains the same. As an example, imagine if you were standing on a perfectly flat surface that extends as far as you can see. If you were to close your eyes, take one step forward, then open your eyes, it would appear that nothing has changed. You have moved forward (a change), but the surface appears unchanged (symmetry).
Through Noether’s theorem, such a symmetry of linear motion is connected to the fact that an object in motion will continue that motion unless something acts on it, what we call conservation of linear momentum. In the same way, if you were to close your eyes, turn to the left or right a bit, then open your eyes again, the surface would appear unchanged. This symmetry in rotation is connected to fact that a rotating object like the Earth will continue to rotate, which we call conservation of angular momentum.
But Noether didn’t just show these simple connections, she showed in general how every conservation law in physics is connected to a physical symmetry. Conservation in energy connects to a symmetry in time, conservation of charge to a symmetry in gauge, and on and on. It is a connection that lies at the heart of every modern physical theory, and has deepened our understanding of earlier theories such as Newton’s mechanics and Einstein’s relativity. Emmy Noether single-handedly revolutionized the way we understand physical theories.
Despite this fact, Noether is not widely known outside the physics and mathematics community. Part of this is due to the fact that her work revolutionized existing physical theories rather than being a physical theory in its own right, but another reason is that she was a woman at a time when the work of women was often marginalized. Despite her world-class work, she struggled against discrimination in her field, and received a fraction of the recognition she deserved. Although things have gotten better for women in the sciences, it isn’t quite what you would consider fully balanced.
So the next time you read about the discovery of cosmic inflation, or the search for supersymmetric particles, or the development of a theory of everything, think of Emmy Noether, and her theorem that lies at the heart of all of these ideas. And remember that the sciences could always use a little more symmetry.
Permalink here: http://www.scitechdigest.net/2015/03/consciousness-is-global-clip-3d.html
Consciousness is global, CLIP 3D printing, Neuromorphic optical computing, Silicon photonic switches, DNA molecular transport, Magnetised graphene, More drone advances, Robotic arms, Targeted nucleic acids, Nanoparticles click.
1. Network Theory and Global Consciousness.
Recent brain imaging studies strongly suggest that consciousness, our rich conscious experience, is indeed a global rather than local phenomenon in the brain http://news.vanderbilt.edu/2015/03/213466/. Network or graph theory was used in this case to examine the links between various parts of the brain that were related to conscious awareness; in this case subjects reported when they were aware of a small disk flashed briefly on a screen while an fMRI scanner imaged the activity of their brains. The data suggested that the whole of the brain became more functionally connected following reports of awareness. This would also appear to provide experimental support for Tononi’s Integrate Information Theory of Consciousness.
2. CLIP Optical 3D Printing Technology.
If you missed this one this week you were living under a rock - everyone was sharing and watching the amazing new 3D printing technology unveiled by Carbon3D this week http://3dprint.com/51566/carbon3d-clip-3d-printing. CLIP stands for Continuous Liquid Interface Production and involves the use of a projector to programmably solidify discrete regions of a UV-curable liquid resin as the growing part is pulled out of the resin bath. This is forming solid structures in three dimensions continuously, without a print-head, and is 25x to 100x faster than conventional approaches on the market. A potentially transformative technological evolution, only now emerging from stealth-mode after heavy venture backing. Oh, and it does 1 micron resolution too; be sure to watch the videos if you haven’t already. In related news commercial interests develop open-source algorithms for better 3D printing https://www.llnl.gov/news/america-makes-taps-lawrence-livermore-ge-develop-open-source-algorithms-3d-printing.
3. Brain-Like Computing with Light.
Microofibers produced from chalcogenide glasses possess a range of optical properties that allow them to be used to replicate a range of equivalent neuron and brain functions and signal protocols http://www.southampton.ac.uk/mediacentre/news/2015/mar/15_45.shtml#.VQo1Qv4mmyc. These can be thought of as photonic neurons that might one day enabled neuromorphic hardware with ultrafast signal transmission speeds, higher bandwidth and lower power consumption than their biological and electronic counterparts. The paper concluded: “we implemented an optical axon in an amorphous metal-sulphide microfiber that enables photonic synapses to perform analogues of fundamental neurophysiological functions of the mammalian central nervous system.”
4. Large-Scale Silicon Photonic Switches.
In related photonics news the largest-ever silicon photonic switch has been developed, which enables higher bandwidth and lower energy losses http://www.osa.org/en-us/about_osa/newsroom/news_releases/2015/largest-scale_silicon_photonic_switch_to_be_presen/. Previous photonic switches incorporated just 64 switching elements but the new design manages 2,500 and 10k should be feasible. Existing architectures would never be able to scale to this level due to optical losses, but the new architecture circumvents this problem by incorporating new MEMS switching element that can switch states 1,000 times faster than existing MEMS switches. Applications include computing, networking, data transmission and routing.
5. Tethered DNA Origami for Molecular Transport.
Advancing on the work of DNA origami “walkers” to transport molecular cargo across a surface this latest work simplifies and accelerates the process by using a tethered DNA origami molecule that is free to swing around and facilitate rapid molecular transport across surfaces in conjunction with natural diffusions processes http://www.nanowerk.com/spotlight/spotid=39476.php. The concept here is to use partial compartmentalisation that is able to rectify and utilise brownian motion to advantage, and the embodiment was a 30nm atomically-precise DNA arm swinging a molecular cargo around on a 90nm x 60nm platform. Future hurdles to overcome include interfacing with the outside world and other applications include structured DNA sensing and computing arrays.
6. The Benefits of Magnetised Graphene.
A simple and robust method for magnetising graphene with hydrogen has been developed http://www.nrl.navy.mil/media/news-releases/2015/nrl-researchers-pattern-magnetic-graphine. The magnetism can be controlled by adding or limiting the amount of hydrogenation, and a commercial electron-beam process can then etch away hydrogen to produce precisely defined magnetic patterns on the graphene. Applications include magnetic data storage of course, but it will be quite a stretch to see if they can actually achieve the million-fold improvement over current hard drives that they claim as “possible”. Tightly packed magnetic graphene might also make for much more powerful permanent magnets and this would also be worth exploring. In related news graphene quantum dots get better http://spectrum.ieee.org/nanoclast/semiconductors/optoelectronics/new-production-twist-for-graphene-quantum-dots-opens-up-applications.
7. More Drone Advancements.
A few of interesting drone developments this week. First, drones can now be used to build high-resolution 3D scans of landmarks and larger areas http://www.technologyreview.com/news/535596/high-resolution-3-d-scans-built-from-drone-photos/, and as drone traffic and capabilities increase this might lead to high resultion 3D maps of the entire planet. Second, a new hybrid gas-electric drone has 13 times the range of a battery electric drone http://nextbigfuture.com/2015/03/hybrid-gas-electric-drone-has-13-times.html, with a flight time of 2.5 hours and a range of 100 miles, which is pretty damn amazing when you think about it. Finally, leading on from last week’s cockroaches, other researchers are flying beetles via remote control http://www.gizmag.com/remote-control-giant-flower-beetles/36588/.
8. Easy-to-Program Robotic Arms Take Another Step.
A couple of important robot arm advances this week. First, Universal Robotics launched its new UR3 robotic arm in three different sizes http://spectrum.ieee.org/automaton/robotics/industrial-robots/universal-robots-ur3-robotic-arm. This is an easy to program multi-articulated robotic arm for a wide range of repetitive tasks that is safe to work near humans. Rethink Robotics also followed up its previous Baxter robot by launching the new Sawyer Robot which is again an easy to program multi-articulated robotic arm (unlike Baxter’s two) that incorporates a range of improvements to make it smaller, faster, stronger, and more precise http://spectrum.ieee.org/automaton/robotics/industrial-robots/sawyer-rethink-robotics-new-robot. It’s great to see competition heating up in this area and ongoing technical improvements delivering ever-better robotic capabilities.
9. Targeted Nucleic Acid Drugs.
Nanoparticles (of gold or lipid in this case) that are coated with 100+ strands of DNA of specific sequence have been termed “spherical nucleic acids” and recently demonstrated very effective immunomodulatory properties http://www.northwestern.edu/newscenter/stories/2015/03/spherical-nucleic-acids-set-stage-for-new-paradigm-in-drug-development.html. The DNA is designed to target different cell receptors and in the this “spherical” form proves to be one of the most simple, efficient, and potent immunomodulators to be developed, with significant promise against cancer and autoimmune disorders. And also this week we had specific microRNAs being used in tissue regeneration, effectively - and temporarily - boosting cell proliferation to take the place of damaged tissue http://www.uphs.upenn.edu/news/News_Releases/2015/03/morrisey/.
10. Nanoparticulate Click Chemistry.
A tough choice for number ten this week, but I went with the deceptively simple and innocuous click chemistry technique developed for easily and controllably joining nanoparticles together and to other surfaces http://phys.org/news/2015-03-click-modern-chemistry-bonds-nanoparticles.html. Click-chemistries are usually used to precisely control the chemical connection of one molecule to another as part of a defined synthetic step, but in this work the concept was adapted to nanoparticles and allowing the quick and permanent bonding of nanoparticles together and to solid substrates. Think ordered arrays of different nanoparticles, even quantum dots, in defined patterns working to perform some function.
Definitely worth a read this morning. Impressive woman and accomplishments.
I'm starting to work my way through the nearly 1200 photos that I took at the 2015 CACMA tournament that was held at the UNC Charlotte Student Union. Already deleted nearly 400, which is to be expected in high-speed shooting of people in action. Probably another 3-400 will be culled, then I'll do more editing.
I definitely learned 1 important lesson while shooting this event: even though it seemed well lit, in order to shoot 1/500 - 1/800 sec at f/4, the ISO was mostly 4000-6400. Next year I'll have a flash with a battery grip and lots of extra batteries to capture the action better without all the noise that I have to take out. Topaz DeNoise 5 is doing a nice job, but too much detail is lost in the face with my minimal knowledge of how to use the program.
This is Cody, one of the Laoshrs at our school, or full instructors. He's only 18 or 19, but he's a really superb stylist. He's done very well in sparring, but this competition he chose to only do forms. This was Mei jung 4 (I think).
I rented a Canon 7D Mark II for a martial arts tournament this weekend and figured I would test it out with my 70-200mm f/2.8L IS Mark II at the lake nearby. I got lucky and one of the bald eagles from the golf course flew kind of close, so I took a bunch, but once I got home, I wasn't really happy, and I don't know what I need to change.
Center-weighted average focus
Canon's Mode 6 tracking (in the Menus)
The first image image has already been editing in both LR and PS with noise reduction in Topaz DeNoise 5. Since it was a JPEG, I don't have the original image (saved over it), but the second image was immediately preceding the edited shot.
Any suggestions at all are much appreciated, no matter how basic. I know that a bigger lens would be helpful, but given the camera, lens, light, etc....
The recent Newsweek article (http://www.donotlink.com/e7zu) that supposedly found a link between water fluoridation and ADHD prevalence in several states absolutely falls into the JUNK science. As a person with ADD (no hyperactivity) and a dentist, I must confess that the article really ticked me off. This is the worst sort of science and science journalism, and now real doctors and researchers will have to keep debunking this crap.
➡ Neither of the study authors has any expertise or credibility in the field
➡ Unbelievably poor study design: no controls, no placebo, not double-blinded, based exclusively on phone surveys with no independent verification of ADHD diagnosis or actual levels of fluoride intake
➡ They only controlled for 1 confounding factor
➡ Published in a very low quality journal
➡ The Newsweek writer clearly has a bias towards the study report based on the number of additional poor references and links included that supposedly support the study - which they don't.
At any one time, inside our heads, live at least two people. One roots for us, tells us how great we are and is our greatest fan. The other, well. Suffice to say that all that one wants is to see us crash and burn just so there can be an “I told you so” moment.
Now the entire voices debate was started by the Russians. One in particular, Lev Vygotsky: http://goo.gl/pqNsx who went as far as to suggest that until the voices actually come alive in some way, inside our heads, we are incapable of thinking: http://goo.gl/CZUmfv.
This is a controversial theory, as you guess, what is not so controversial is the fact that the voices inside our heads represent mental representations of reality models that may help us understand the way reality itself works: http://goo.gl/mDytHa. The easiest testing ground of that theory is our reading of fiction: http://goo.gl/6XAna8. The writer’s ‘coded’ words unfurl once they pass through the filters of our experiences and perceptions into a fully-blown model of some perceived, albeit imaginary, reality. What is of even greater interest is the fact that writers themselves, the wielders of the ‘code’ are not immune from falling prey to their own magic: http://goo.gl/1U9sg2 with their characters, talking to them with a will that appears to originate from outside the writer himself.
A little unstable as that may sound, many of us have had at least a taste of it with an imaginary friend: http://goo.gl/Tomyu, during our youth. Lev’s theories notwithstanding, as adults we seem to still hold all these conversations inside our heads, many of which sometimes go against us: http://goo.gl/XHBYQG. This is eerily reminiscent of the exam performance scores of students and minorities mentioned in our Radiolab report: http://goo.gl/CZUmfv (and if you haven’t listened to it yet, now’s the time to do so).
You would think that as adults we’d have no problem distinguishing the ‘realness’ of a voice and what’s inside our heads but the mechanisms involved in the manifestation of this ghostly speech are actually not that different from those of physical speech itself: http://goo.gl/EtBJmm and although the brain is indeed adjusting the volume of the inner and outer voices so that it becomes easier to decide which one to choose to listen to it’s far from clear yet on why we are just not better at it (or at least outgrow it).
Voice, however, take many manifestations: http://goo.gl/ouc7Zl and range from perceptions of the shadows of our aloneness, to a more jockey and yet somewhat compelling statement, like when +martin shervington mentions why he shared something: http://goo.gl/wP9LgJ.
And so here we are. Full circle almost from nurture (and the voices of infantilism) to our present where our personal sociopathologies find it easier to manifest themselves through a medium where the threshold barriers of interaction are considerably lowered.
There is a point to this journey. Our brains are complex and we are all, at some point, subject to some kind of internal negativity, to say the least. We are also quite capable of externalizing that as our constant mode of interaction simply because it feels the easiest thing to do. As Eleanor Longden says about her journey: http://goo.gl/0smR11 it is important to understand that the negative voices we hear are the ones we ought to show the most compassion to. They represent the greatest hurt and may, subconsciously, also be trying to protect us from something they see but cannot express, anxieties they cannot articulate.
When to some degree we are each other’s ‘voices’ in the digital plane, empathy, acknowledgement, compassion and understanding go a long way towards finding a balance that works for us all.
For my part, this Sunday, I sincerely hope the voices told you to stock up with coffee and donuts, croissants, cookies and chocolate cake and that you listened. Have one awesome Sunday, wherever you are.
I am constantly amazed at the people who can pump out a new blog post every day, or even every week. Seriously in awe of them. People like , , , , , and numerous others whom I've met on G+.
Back in February on a snow day, it took me an entire frigging day to write a single blog post on fluoride safety. http://www.smilesbypayet.com/2015/02/fluoride-is-safe-effective/. And that was only the second meaningful blog post for my office that I've managed this year, as I can't really count the one announcing our office NCAA contest.
I have managed several personal blog posts, but those are relatively easy, as I write them only on something that strikes my fancy and if I have time. No pressure at all.
But today, in response to a stupid article in Newsweek about a lousy study that claimed to find a connection between fluoride and ADHD, I managed to pound out a rebuttal in less than 5 hours, replete with TONS of links and references. it will be published some time this week.
And after barely getting 2 blog posts out in the first 2.5 months of the year, after today's article, I already have 2 more that are 3/4 done and will be out in the next couple weeks. I have along list of topics to cover in future posts - we'll see how long this creative burst lasts.
Yup - combination of ADD and writer's block. But when the ADD allows and the writer's block breaks, man can I write!
For example, I'd started this this post on fluoride safety (http://www.smilesbypayet.com/2015/02/fluoride-is-safe-effective/) on January 15th or so, struggled for almost 3 weeks, and finally had an entire day to work on it and finished it.
But the post I published this morning (http://www.smilesbypayet.com/2015/03/water-fluoridation-does-not-increase-adhd/) took less than 5 hours from start-to-finish.
- University of North Carolina - Chapel HillBiology and German, 1990 - 1994
- University of North Carolina - Chapel Hill School of DentistryDoctor of Dental Surgery (DDS), 1994 - 1998
This is the quote by which I live, and I am deeply blessed to have the opportunity and drive to do so.
More than anything, I am a family man - with my wife and 2 daughters, I've lived in in the Charlotte area since 1998 after graduating from dental school in Chapel Hill, NC. My wife is the love of my life and simply amazing, and we are blessed with 2 incredible daughters.
My profession and passion are one and the same: I've been a Charlotte dentist since 1999, and if you're in need of a dental office, we'll gladly welcome you. We offer most of the most modern technology available and a unique and broad combination of services. We know the dentist isn't the most fun place to be, but we try to make it the best possible, and since I truly love my job, we aim to offer the best dental care possible.
Outside of the office, my biggest passion, hobby, and part-time profession is that of photographer. The G+ community has been an amazing source of inspiration since it began, and it is a wonderful place to share and learn equally. So many people have encouraged and pushed me, it would be impossible to thank them all. You can see my work at www.CDPayetPhotography.com; prints are available if you like.
- Smiles by Payet Family DentistryDentist, 1998 - presentI am the owner and dentist at my Charlotte office, Smiles by Payet Family Dentistry, where we offer a "Hi-Tech, Soft-Touch" approach to treating people of all ages, with a wide variety of procedures, including: - Laser Dentistry: "No-Shot, No-Drill, No-Pain" dental work for crowns and fillings with the Lightwalker laser; also LANAP Laser Periodontal Therapy "No Cut, No Sew" treatment of moderate and advanced gum disease (periodontitis) with the Periolase - Emergency Dental Care: root canals and extractions - Same Day Crowns with CEREC CAD/CAM - Microscope-Enhanced Dentistry for earlier diagnosis and less expensive treatment - 3 options for Straight Teeth: Invisalign, Powerprox Six Month Braces, and the Inman Aligner - Cosmetic dentistry: teeth whitening, porcelain crowns and veneers - Replacing missing teeth: dental implants and dentures
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