each cell is a bioelectrical oscillator, similar in concept to the mechanical oscillator of this clockmeaning that they each obey a basic rhythm. and that rhythm can be understood using the language of calculus. for the clock, the state is the position of the mechanism, and for the heart cell, it's how close it is to firing an electrical signal. however, mathematically, these different mechanisms are the same. so any single oscillator has a simple description, but now we're interested in a much more complicated problem. what happens if there's a group of oscillators with a means of communicating with one another but with no single authority dictating an overall plan, be they oscillators or birds, heart cells or fish. can differential equations help us understand those kinds of phenomena? so to get to the answer, we're going to talk to steve strogatz, a professor of applied mathematics at cornell university. steve, how do we use math to get from heart cells to pendulums? >> they're both oscillators. they both move in cycles. you know, there's an electrical cycle in the heart cell where

a professor used the analysis to run his own oscillation tests. he chose a 29-story building on his campus. he used computer modelling to reproduce its structure. he discovered that the highest part of the building would shake nearly 3 meters from side to side, about three minutes after the quake. he found the building's oscillation could last more than 20 minutes and could be nearly five times larger than the sway caused by the 2011 earthquake. the force could warp the joints of poles and cross peoples more than expected, possibly causing walls and ceilings to collapse. >> translator: we now know the possible effects of the nankai trough quake. we need to strengthen the structure of buildings, especially tall ones, even though it will cost a lot. >> the professor says the quake wouldn't cause buildings to collapse but he says shelves should be fixed to prevent injuries from long period oscillation. >>> china's business sentiment among its manufacturers declined in april. slower growth of exports is apparently a factor as the chinese currency the

oscillates. an electromagnetic wave. so that light will be captured by the atom. and them, boom, the atom will vibrate. and, foom, send out its own light wave. that catches the next atom. when that light wave hits that atom, what's that atom do? how many say, "oh, it probably don't vibrate"? come on, it vibrates, too, all right? so, boom, it's absorbed. now, what's the vibrating atom do? boom, spit, burp, bam, bam, bam--it cascades, when it gets to the end. here's your piece of glass like this, yeah. here's your first atom just sitting like that. here comes a wave--choo, choo-- okay, hoop, i spit. next atom, boom, okay, boom. hit, boom. here's the atom right on the edge over here. whip, boom. this one, hit, boom, and then foom, free space. how fast did it throw it out? free space. you know what the speed of the light was in between atoms? 300,000 kilometers per second, the speed of light that you get in a vacuum. 'cause guess--we think of a vacuum as void, right? take a piece of glass, take a piece of water, what's in between the atoms? how many say airspace? no,

an electronic music studio was oscillators taken from the physics lab. was nothing like a synthesizer made for musicians. here behind me-- here's an arb synthesizer. how many of those were made? 300, 400, maybe a 1,000 of this big model. it was made for composers. it was invented by composers, right? here in front of me-- here's a kurzweil synthesizer. hundreds of thousands of these are made. it's made for consumers. and of course, the synthesis got linked to computing. one way of making a piece is to make the piece on a synthesizer and record as you go on the computer-- no notation, y'know, playing, playing. i like this. i don't like that. try it again. record again on the computer as a sequence. little by little, i began to realize that the music that i wrote was very shaped by the technology i was using to write it. the process became sort of passive. i did way more listening and way less writing. it was slowed down, and i was losing track of the shaping of it. so i switched over to paper and pencil again. and after a while, it began to seem that i co

mcclelland oscillator is down and the market is higher than it was 50 days ago.s doesn't really happen often and it doesn't always mean something. but the last time it occurred was october 2007. a lot of chatter about it. and i think everyone should be aware of it. it's cocktail conversation, maybe, or maybe it leads to something more. >> sounds like the sky is falling when you talk about that at this point, grasso. >> it's a bunch of hot air. >> save this clip just in case it's not, though. keep that on file. >> for me i lightened up because i'm worried like the rest of the world is that we're topee here. 1629 in the cash. that's my level. we closed right there. perplexed. don't know what to do. i'm lightened up. i'm waiting for the dip. >> i'd say to both of these guys, you said may 22nd. since may 22nd. we've had three reversals that have caused basically, you a drawdown of about 2%. we haven't seen that sort of activity in months. it seems like in months. it's all coming at a time when we've had commodities, bonds, emerging market currencies everything has be

vulnerability to all kinds of manipulations if you follow the value for example in dollars of a bit coin it oscillates all over the place making rational calculation if you're not a speculator virtually impossible everyone promises was involved in it and don't get all of these problems solved but given the fact that regular currencies are also volatile this kind of unregulated one promise is a volatile older ability to evolve still till agrees that his will unlikely to make it and you can be more than one of many efforts to escape the rigidity of a status all over that is broken down and this is a phenomenon which is a merger of the internet many may say this could be a fad but it's interesting isn't it that the likes of e bay and amazon are actually considering using it now so that does give it a bit of credibility yes and there are people who want to use it and it is correct to imagine that the appetite for anything that looks like it's in this cape from the rigidities of a broken capitalised system basically will attract all kinds of people and the game day and amazon and a whole host of internet o

i haven't been able to oscillators because the case is appealed and there is also the question that he didn't understand it. i was at the trial so i saw him every day. >> the descriptions are buried their dead and is beautifully pressed shirts hunched over, not looking at anyone. i guess he's this large intimidating looking person. but it did give a sense of the feeling. >> he was like, god, i covered another trial many years ago with the mentally girl, so some of the markers you with the is his obsession every day was sweatshirt his lawyers had brought him, what color i've been to the dry cleaners. and these gummy bears that he wanted coming in now, where his main -- those are the questions he would ask them. >> he doesn't get was going on in this trial. so it was interesting -- it is interesting to follow that case. it was one of the ones they really wanted the book to have one following a trial as it was going on because it is interesting to see -- interesting to talk to family members from both sides and see them at the trial every day, to see how ordinary justice plays out on a da

that's an oscillator, in other words, measures the buying and selling pressure.nd also the accumulation distribution line, measures the money coming in and out of the stock. if you consider the last two big rallies in berkshire hathaway, the past four months, and before then, the period from last june through last october, what you saw was a rising money flow index. so you had things really going well. then coupled with a rising accumulated distribution line. but then when the money flow fell -- index fell below over -- in other words, was not people reaching, we got a decline in the a.d. line, meaning more sellers and berkshire hathaway pulled back 10%, so we have the consolidation and that's why it went down. the money flow just recently declined in the same way it did in october. that could be a sign that a pullback is -- collins thinks berkshire will have 113 followed by consolidation to 103. level roughly in line with the floor on the daily support pattern. only after that garden variety pullback does think berkshire can charge a higher level. so he is think

valley fever is being blamed for nearly three dozen in the deaths and hundreds of oscillations.ation's fight in court of the california faces a federal court order to reduce prison crowding statewide. the judge has scheduled a june 70 hearing for the argument. >> rangers at yosemite national park resume their search today for a missing hiker. 73 year-old can ask stensby of minnesota has not been seen since leaving the ahwahnee hotel sunday morning. elected no say he was talking to vernal fall and expect to be back by noon. his backpack was found at the lookout point the top of a waterfall. he is an experienced hiker. park officials are asking visitors to visit the false to jacket photografalls to takey photographs that have taken with him may be in it. queen elizabeth the second is missing and it is been attending since 1971. a possible sign of our age and efforts to reduce long- distance travel. buckingham palace said the point wasn't her son prince charles to bypassennial session of the commonwealth heads of government meeting. the meeting is scheduled for november. the 87 yea

other than that lannett oscillates the way it wants to offer late -- other than the planet osciallateshe way it wants to osciallte. [indiscernible] noaa is very involved. global warming is an extremely important issue facing our time. are branches of noaa heavily involved in better understanding many different impacts of global warming --possibly affecting weather is one of them. assessing some of the global summit models run specifically -- global issues run specifically to address that relative to these other major climate patterns. we're interested in understanding all of these different climate factors. and their interplay. as far as the climate models that predict the hurricane activity, there have been no changes. a question from the phone. the times-picayune. i'm interested in hearing the answer to a question about storm surge mapping. mapsou rolling out new for local areas this year? >> those are not going to go operational this year. if you are talking about storm surge mapping concurrent with hurricanes, you can look at noaa's digital coast website. we have interactive digita

[laughter] other than the planet oscillates the way the planet wants toes late. >> -- the way the planetnts toes late. >> question in the room. >> [inaudible] >> noaa is very involved. global warming, climate change is an extremely important issue facing our time. and many branches of noaa are really heavily involved in better understanding many different impacts from global warming, affecting weather, possibly affecting weather is simply one of them. more of what's been done over the last few years regarding hurricanes is to really assess some of the global climate models that are run specificically for, to address co2 issues and try and better understand how much or how little global warming may be impacting hurricanes relative to some of these other major climate patterns that's in place this year and that's been increased activity since 1995. so we're interested in understanding all of these different climate factors and, ultimately, their interplay. >> but there's not any changed models. >> no. and as far as the climate models that predict hurricane activity, there have been no chan