13 Burst results for "John Eric Goff"
Kottke Ride Home
"john eric goff" Discussed on Kottke Ride Home
"On the same page here. A brief differentiation of the three. Bobsled is the one from cool runnings, where athletes are in an almost car looking vehicle that they have to push before they all jump in it and ride down the course. In luge, the individual athlete starts the race already on the sled, which is flat and not at all car like in bobsled. It just looks like a more professional version of the sled you may have grown up riding down hills on on snow days. They lie on the sled on their back feet first down the course. And while bobsled comes in two and four person events in the Olympics luge is usually solo, although there is a two person version called double luge in which the second person literally just lays on top of the first, and it is the absolute best thing to watch. Now, skeleton, meanwhile, looks a lot like luge in that it is one person on a similarly shaped sled, but they are on their belly and going down head first. They also have to run about 40 meters and jump into position on the sled at the start of the race. Instead of starting already on the sled, like in luge. In both luge and skeleton, athletes can reach speeds of up to 90 miles an hour. But how did we get to this point? As Atlas obscura points out, the sled as a functional item goes back centuries. In places with snow and hills, they were highly effective vehicles for transporting very large, heavy objects. It wouldn't be until later that the sled came to be used as a pastime. A lot of sports that are now included in the Winter Olympics had their start in the Scandinavian military, taking activities that were a part of military strategy like skiing and shooting and turning them into competitions with each other when they weren't fighting. Luge and the other sled sports are a bit different. It is possible that sleds were used in a military context back in a 103 BCE by a northern Germanic tribe who slid down a mountain on the backs of their shields to attack the Romans and failed at its that could just be a made up legend, but it does emphasize an important point. Up until about the late 1800s, sleds were thought of as un steerable. You could go down a hill really fast on one, but you didn't have too much control over where you would end up down that hill. That changed towards the end of the 19th century. At two resort towns in the Swiss Alps. Davos and saint Moritz started as popular summer resorts for aristocrats from around Europe and North America. But soon decided to open in the winter as well, and the rich folks spending time there needed some way to keep themselves occupied. So they started sledding, or as they called it there at the time, tobogganing, possibly due to influence from the algonquin language and visiting Canadians. Quoting Atlas obscura. This early period of winter sports creation in the Alps drew English men and Americans. In broad strokes, the Americans brought the equipment and the English men brought the ceremony. It was these tourists who, when they weren't skiing, took sleds down the picturesque mountains, often write down the main roads in town, which seems to have been very annoying for the townspeople and great fun for the tourists. Of all the varied kinds of sport which men in their incessant search after amusement have discovered, those which have taken the most lasting hold and attained the greatest perfection appeared to be the various forms of rapid motion upon earth or water in which one man's strength or skill can be tested against another's rights, Theodore Andrea cook in notes on tobogganing at saint Moritz. Saint Moritz is probably the birthplace of the lineage that gave us luge. According to some accounts, it was in Davos that toboggan races had been held to the great entertainment of tourists in the early 1880s. Hotel operators in nearby saint Moritz took notice, and according to the saint Moritz tobogganing club in the winter of 1884 through 1885, 5 guests at the kom hotel formed an outdoor amusements committee and built a sled racing course to compete with Davos. This course was known as the cresta run quote. Originally made of snow as sleds developed to have metal runners and steering mechanisms, the cresta run was noted to get run down pretty quickly from these heavier sleds. And when it got run down, it hardened, pretty much into ice. But that's when people noticed that on ice, they could go even faster. And that is when sled runs started being intentionally made from ice, increasing speeds and danger exponentially. I would say this is probably when sled runs went from a fun afternoon activity where you chuckle at your friend's wiping out while you day drink on the sidelines to a much more serious competition. The cresta run at saint Moritz and nearby resort towns across the Swiss Alps. These sled activities steadily evolved into luge skeleton and bobsled, leading to the first federation of sled sports in 1913. And when the first Winter Olympics was held in 1924, four man bobsled was on the roster. Skeleton debuted at the next games, but luge wouldn't be added until 1964 in part due to a sort of back and forth in popularity between skeleton and luge. But especially as the sports have developed from their humble wooden sled beginnings at saint Moritz to the 90 mile an hour aerodynamic battle between latex and ice tracks. How do people actually stay on course? And frankly stay alive while hurtling down the course faster than most cars drive on the freeway. John Eric Goff Professor of physics at the university of Lynchburg, who focuses on the physics of sports, answered just that recently in a piece in the conversation. Most of it is down to gravity, the mile long courses drop about 400 feet as athletes speed down the course. But to get more specific, quoting goth riders in the sledding events reach their fast speeds because of the conversion of gravitational potential energy into kinetic energy. Gravitational potential energy represents stored energy and increases as an object is raised farther from earth's surface. The potential energy is converted to another form of energy once the object starts falling, kinetic energy is the energy of motion. The reason of flying baseball will shatter the glass if it hits a window is that the ball transfers its kinetic energy to the glass. Both gravitational potential energy and kinetic energy increase as weight increases, meaning there is more energy in a four person bobsled team than there is in a one person luge or skeleton for a given speed. Racers are dealing with a lot of kinetic energy and strong forces. When athletes enter a turn at 80 miles an hour, they experience accelerations that can reach 5 times that of normal gravitational acceleration. Because they're all going down the same course, the key to winning, which is often a difference of .0 something seconds. Lies in having a fast start taking the shortest path down the course, and then as aerodynamic as possible. Goth explains, quote, while gravity pulls the athletes in their sleds downhill, they are constantly colliding with air particles that create a force called air drag, which pushes back on the athletes and sleds in a direction opposite to their velocity. The more aerodynamic and athlete or team is the greater the speed. To minimize drag from the air, luge riders, who face up, lie as flat as possible. Downward facing skeleton riders do the same. Whether in a team of two or four, bobsled riders stay tucked tightly inside the sled to reduce the area available for air to smash into. Any body positioning mistakes can make athletes less aerodynamic and lead to tiny increases in time that can cost them a medal, and these mistakes are tough to correct at the high accelerations and forces of a run. As far as hitting that shortest run down the track, that is done by keeping the sled as straight on course as possible, which also reduces drag. Athletes do this by steering. In the case of bobsled, the front rider has rings that turn the runners, the steel blades that the sled sits on. Curved bows at the front of the sled can be affected by the athlete flexing their calves. They can also steer by moving their head and shoulders. Skeleton athletes have to rely on even fewer movements to direct their sled. It is all incredibly precise with potentially dangerous consequences for getting it even slightly wrong, which is one reason why Christina karrueche over at slate recently declared luge to be the slipperiest of all winter sports. Karaoke's premise lied in the fact that winter sports can basically all be boiled down to slipping around on frozen surfaces and trying not to fall. Which is not wrong. That's basically what all those bored rich folks at the Swiss resorts and board Scandinavian military men were doing when they invented the recreational and competitive forms of all of these now Olympic sports. Just having a bit of fun on some ice.
StarTalk Radio
"john eric goff" Discussed on StarTalk Radio
"Ninety <Speech_Music_Male> <Silence> <Advertisement> <SpeakerChange> <Speech_Male> <Speech_Telephony_Male> <Speech_Music_Male> seven seven. That's <Speech_Music_Male> only the seventh <Speech_Music_Male> fastest speed <Silence> <Advertisement> ever. So <Speech_Music_Male> <Advertisement> <Speech_Music_Male> that's <SpeakerChange> that's pretty <Speech_Music_Male> good. Yeah <Speech_Music_Male> <Speech_Male> i'm eric. I don't <Speech_Music_Male> want you to be the <Speech_Male> person who in fifty <Speech_Male> years people look back on <Speech_Male> his. He's <Speech_Male> thought we hit the maximum <Speech_Male> and now <Speech_Male> run into nine flat <Speech_Male> right. This <Speech_Male> is what they said about <Speech_Male> four minute mile <Speech_Male> and two <Speech_Male> <Advertisement> hour marathon <Speech_Male> <Advertisement> and <Speech_Male> <Advertisement> <SpeakerChange> <Speech_Male> <Speech_Male> yeah so do you <Speech_Male> wanna be you want to retract. <Speech_Male> Anything <SpeakerChange> you've said <Speech_Male> is. <Speech_Male> I don't think we've had <Speech_Music_Male> <Speech_Music_Male> the peak of anything. <Speech_Telephony_Male> I mean we're always <Speech_Music_Male> going to be making these. <Speech_Music_Male> <Advertisement> Bella metric <Speech_Music_Male> progressions <Speech_Music_Male> toward new records <Speech_Music_Male> and <Speech_Music_Male> mike for second <Speech_Music_Male> changes and <Speech_Music_Male> technologies helping <Speech_Music_Male> us get there. <Speech_Music_Male> I mean technology <Speech_Music_Male> is definitely helping. <Speech_Telephony_Male> The training of the <Speech_Music_Male> athletes and <Speech_Music_Male> <Speech_Music_Male> humans are getting <Speech_Music_Male> a little taller. So <Speech_Music_Male> <Advertisement> i mean we'll <Speech_Music_Male> we'll see what <Speech_Music_Male> <Advertisement> hundred years from now looks <Speech_Music_Male> <Advertisement> like early. <Speech_Music_Male> We <SpeakerChange> won't <Speech_Male> other people <Speech_Male> were <Speech_Male> close. <Speech_Male> I mentioned <Speech_Male> this before. <Speech_Male> This is another occasion <Speech_Male> to say it again. <Speech_Male> I forgive <Speech_Male> me. I don't remember which <Speech_Male> airport i was in <Speech_Male> but i look at airport. <Speech_Male> Mosaics <Speech_Male> that are on the <Speech_Male> floor. And i photographed <Speech_Male> him a lot <Speech_Male> of cosmic relevance. <Speech_Male> A compass <Speech_Male> rose or constellation. <Speech_Male> <Speech_Male> A lot of them do interestingly <Speech_Male> so <Speech_Male> <Speech_Male> One of them was a <Speech_Male> plaque that said <Speech_Male> on such and such <Speech_Male> a date maybe two thousand <Speech_Male> and twelve <Speech_Male> hussein bolt <Speech_Male> landed <Speech_Male> at this airport <Speech_Male> and then <Speech_Male> it said <SpeakerChange> it has plane <Speech_Male> landed ten minutes <Speech_Male> later. <Speech_Male> Couldn't <Speech_Male> <Speech_Male> <Speech_Male> expect <Speech_Male> that because it's <Speech_Male> it's it's it's <Speech_Music_Male> mosaic. <Speech_Music_Male> Floor <Speech_Male> <Speech_Male> <Speech_Male> twenty <SpeakerChange> twelve so <Speech_Male> they would've been eleven <Speech_Male> <Speech_Music_Male> domestic <Speech_Music_Male> force so i <Speech_Male> have to look at my notes. I took <Speech_Male> a photo of it <Speech_Male> But it's <Speech_Male> it's very very <Speech_Male> cute. Good sense of humor. <Speech_Male> So <Speech_Male> guys so eric. <Speech_Male> Thanks for being back on. <Speech_Music_Male> You know <Speech_Male> this is not the last time. We're <Speech_Male> gonna get you on this <Speech_Male> great so <Speech_Male> gary always good to <Speech_Male> have you do so. Paint <Speech_Male> a pleasure my friend <Speech_Male> all right chuck <Speech_Male> always <Speech_Male> a pleasure. This has <Speech_Male> been star talk sports <Speech_Male> edition cosmic queries <Speech_Male> special <Speech_Male> guest erik goth <Speech_Male> talking about the physics of <Speech_Male> sports in <Speech_Music_Male> this olympic <Speech_Music_Male> season nearly <Speech_Music_Male> and <SpeakerChange> as always <Music> <Advertisement> keep <Music> looking <Music> <Music> <Music> <Music> <Advertisement> <Music> <Music> <Music> <Music> head.
StarTalk Radio
"john eric goff" Discussed on StarTalk Radio
"Run pass the school every state. Just be great. If they're on the track inside police officer at the end of the track you would have done. So what is is there. Is there a speed that human beings. Not i'm not talking about cheetah you know like seventy miles an hour but is there is feed with our physiology. That is our absolute top speed. All right now. It's about twenty eight hour. I mean in other words. We're already there. Also keep in mind when when both set this record six five and if you do a little mechanical scaling your speeds going to scale with your high short thinks little short critters they have great acceleration the bigger animals. They have larger speeds top speed. It took him forty one steps to set that olympic record. The person who got the silver on lake was five eleven. Took five more steps to cross that. Finish line so you know he. He had fewer steps that he had to take it. What would he made that hundred meter run and set that record so there. I mean you talk about advantages a guy six foot five. I mean that's already in advantage when you're running a hundred meter sprint. How do we go do we do. We get to a central for athletes to get that leg legs and leverage old. Now.
StarTalk Radio
"john eric goff" Discussed on StarTalk Radio
"Things because i mean look at nineteen. Ninety-two was the dream team. Their first match was angola and goal ahead. Like two gyms in the whole country where they played basketball. Of course they get demolished but look where international basketball has come since we started. The nba was funneling money and other parts of the world and stuff. I mean sure. The rich countries are always better. Be first in. They're always going to have all the advantages with training. But eventually i think it helps. The other countries eventually get gary. The i mean if i train at high altitude because i live at high altitude. You can't say no you have to train sea level because everyone else is the discussion. I'm not saying the worse you were. Don't pretend like you didn't vote on that. We got time for like a couple more more questions here. we've would. They think we kind of touched on your question about the advantages with rich nations and training and nutrition and how we get. I have a producer bonus question which it we go up to one of our producers asked this. Yeah and that would be made slow. What's watch one event in the olympics. It's always the fastest human on the planet. It's the hundred meters. And so if somebody. Eric is just to be clear just to be clear. The two hundred meters is run in faster. Time than twice the world record of the hundred meters so technically the winner of the two hundred is the fastest human just to put it out there. But we'll watch the hundred since we all watched them all contain whether they go to better advertising tame i don't know but it's the hundred dollars on a straightaway so it's one camera. Shot all the way down. Okay go ahead. So what speed is an athlete going to need to break you. Same boats nine point five eight.
StarTalk Radio
"john eric goff" Discussed on StarTalk Radio
"No. Why not if everybody gets the suit. That has the bubbles in it that keeps buoyancy you. Why not let everybody get the suit kinda if if if everybody is allowed us to saint suit. That's different but i mean you know if you're creating advantages with equipment that's used in a given bit that other countries don't have i mean that's that's a little different. I think this is the same thing with the the marathon running shoe with the carbon fiber plates in it. They have not allowed it into competition because not it is not readily available for every athletes. Now if we go back to and it it counts obviously help you in the competition of your event but can help you in preparation but is available to every aspect of it isn't then you either decide that it is going to be available every athlete or you scrap it. You have to can't tell people how to train an aa. I would be more more of a training construct than it would be a communist and so no. I mean listen. The united states wins the olympics for the most part medal. Count every single olympics. Because why we're very rich nation and we allow people to we give people the freedom of choice to pursue their passion. So it's not like the government is saying. oh you're gonna be attract star. No it somebody who has come up from the talent their kid dreaming about being attract star but then some corporations steps in and says i'm gonna dump a bunch of money on you so that you can realize that dream but the vantage point.
StarTalk Radio
"john eric goff" Discussed on StarTalk Radio
"On the edge of stress and you wanna be able to feel that anxiety whenever you're going out to perform at that high level as a matter of fact what you just said is one of the things that she pointed out to us is that for some athletes. They want to they. Don't wanna dial down the excites the excitability of their brain for others. They do but it also depends on the task at hand. You want some anxiety and stress and like that feeling of all my god will. I'm like you want that to work to feed you in certain certain situations so chuck. I always imagined a conversation between a baseball player and a golfer right and they don't know anything about each other sport and so the baseball player asked the golfer. How fast is the ball moving when you hit it. Not at all where is it. It's on the ground between my feet. Are people screaming at you. Know total silence so when you swing the ball moving then no. It's still there the whole time. It's just a compare and how about you when you hit the ball. How fast is the ball going. Ninety miles an hour the person who throws it do they want you to hit it. No they do everything they can. So that i can't hit it. Are people silent. Not making as much noise as they can. So i have to agree with you chuck golf. I can't no. I can't can't embrace it and in your in your analogy. The one thing is like sometimes that guy throwing the ball sometimes he just throws it up.
StarTalk Radio
"john eric goff" Discussed on StarTalk Radio
"Media. John eric golf is my facebook page. I'm still a little bit of a dinosaur on the social media friend but it's coming along okay. I won't and the more advanced get on it. The more they'll egg you on in that direction. So john eric gov Facebook excellent and chuck. You're still going to chuck nice comic. Thank you yes. I do confirm that. Yes i do. Follow you for while there. I wanted to all. This may never let me guess. He's started this morning. Say you could say that right. Now ask and mr. My three left feet on twitter. And that's it you got it you got it so let's get back to our patriot on questions and who's who's up next. Who's got it all right. Let's go with the next patron question just before you do that. Occurred to me in my background here. The audio there is a ticker tape parade moving broadway. I'm pretty essential workers this essential workers. I first responder workers responders in celebration of coming out of kovin because the city is basically open now and so it's a ticker tape parade which is reserved for heroes heroes in the old days politicians but nowadays politicians No one of them as heroes but people who put their lives at risk in the service of others are still respected and and if you win the world series right is the same thing right. Heroes one saying this so if you hear the background. That's why the canyon of heroes canyon of heroes lower broadway. Essential workers won't as a yes attic. Where it's my question is odd. Their unique ways that athletes especially olympic athletes train them minds knocked choke when literally. The whole world is watching them. Ooh tells you about the show factor. Eric you get into that as well. What's the physics of joking focus.
StarTalk Radio
"john eric goff" Discussed on StarTalk Radio
"Moving along the surface of the win rented. Course now they come up like when they make their moves they come up wasting. That's crazy okay. Sidon style right beside rises up for for the shot very good. My only point. Gary was when i wrestled. I've never been more tired in anything i've ever done that after. I have wrestled on a point. Where one match. I could not hold my pee. And there's no other sport. I've ever done for which that happened. Ellis there's no shape this in russia now and i'm well known that's that same madison's here neil peed is dumb is gave us all. I think an unbelievable respect for sports that maybe we hadn't considered of of of why for me. The olympics is the greatest show on. Why is it brings the best of the best and it challenges you just not on a physical level just not unnatural skill level. But your stuff. You'll ina real stuff and and eric. We debated among us many times Are there any sports that would be the top of our list of removing from the olympics for them not not being sort of categorized the way other sports are and one of my first criteria would the greeks have ever drawn on the side of one of their earns and so the east supports. I can't picture them putting. Someone crouched over a computer terminal as one of the things on anything but another but another important one was if the sport.
StarTalk Radio
"john eric goff" Discussed on StarTalk Radio
"Wait a minute. The marathon is a marathon in the decathlon. Nam listing sports. That all right now. There's a number of sort of salts in my mind. The triathlon would be one to throw in there. Swim the ride. The run then at any olympics the olympics. Oh yeah they. They like their athletes to southam but is it. Is it the ironman triathlon. Because you can run all different kinds of tries but the iron man is the big deal because it is in the olympics asking. I don't know if it's a marathon. Do they run a triathlon. Okay okay. I straighten back toback. Yeah but if it ain't iron man. I'm not i'm not impressed. There's no research and this wait a minute. This is from a guy who's never even run for this guy potato chips on the couch. Depressed poverty wrestling as a physically demanding spaw and we did a show recently and we had dr kevin stone on a wetsuit of physiology of a two thousand metoo rowing rice. And how your body is destroyed physically every muscle every stroke and what happens to get you from point in the rice way. You've got nothing to the finish line is all about you and it's all about what you have in your head in your soul what you can summit then yes absolutely so on something like back so me i mean. I don't know that we can have the definitive answer but busy events like bat jaw. Have you sat in a lug. Give you one.
StarTalk Radio
"john eric goff" Discussed on StarTalk Radio
"Drought smoother smoother. Yes so they basically. It's less surface area in contact with the water as they push through they. Whatever you're doing these you're twisting a little bit too and of course the main thing your legs are doing is keeping your body parallel to the surface of the water. That's the main thing that your legs are doing in addition to a little better propulsion. But i don't think it's just your surface area. It's the it's the surface area that has plowing through the water. That manager for the drafts. That's obviously your whole body is touching the water yet administer for syria leg-stump if you'd know keeping them parallel to the surface of the water and they dropped down. Then you've got more drag. Owner is more articulate. Articulated better than i did and so. Let me ask this thing based on bet gary's point just there there was something called the berkoff blastoff years ago And he was dolphin kicking underwater with his hands in front of him superman style and he stayed underwater and was dusting. I can't say dusting. Because but he was just i love you and my molecules water exactly water so and there wasn't a week so yeah i love to my my not on my way my way i didn't test you buy. I loved you in my in my water molecules and so why is that so such an effective means of propulsion. And why didn't they stop that from happening. Yeah i want to add to that just to add just while we're attacking you eric 'cause we like that we're friendly in a freestyle event. Who the hell cares. What stroke you're doing. Why would they alley law a stroke that gives you an advantage in a freestyle event. I agree and now we're getting into the topic of what can you wear and and you know. Are there other kind of advantage gift for technology.
StarTalk Radio
"john eric goff" Discussed on StarTalk Radio
"Felt these hundred moves that you said is any of them. Do they include wax on wax. Well they will have something to look like that. I mean you will see some movements that are gonna look like they are doing these types of things. They're going to have a very rhythmic punches they'll be doing jumps and some attacks down to the ground They're gonna be doing a lot of kicks and stuff but of course they're not they're not fighting anyone in they're being judged for this so that there will be a subjective element to the to the scoring there. Get away with intuitive moves. You talk about this. Choreographed routine for each fighters can one of the southern you. Save something and intuitively. I know exactly how to do this. Set of moves to your advantage. Or i mean one of the qualifying matches i saw between these two very talented ladies. That were sparring. You want one gets in close. And she's got an enormous amount of flexibility and all the sudden does almost split with the lead coming straight up hitting her opponent in the head. And i think that surprised her opponent the that in close she could almost do a vertical split and score a head shot in. You know the the the the three points for the scoring a hit like that by the way if you ever get a chance to go on youtube and check out the a karate just practice moves that wonder at things they do. Is that split straight up in the air. Just like eric described but then they kick the air multiple times just up at if is unbelievable. They've pulled me down and go straight back up into that full split position and they pulled me down and do that while maintaining a straight leg in the split. All the way throats shrinks strength and look look.
StarTalk Radio
"john eric goff" Discussed on StarTalk Radio
"Your training. You might have that. I don't know that you're gonna see that much sydney olympics. In fact i think the american audience might find karate to be the more taint tame of the three martial arts when they're looking at judo and taekwondo they're going to see some of the sparring and karate they'll have a hand pads and footpaths but they won't have head gear on like you know like you're going to see in taekwondo. They're not gonna have. The you know the chest protectors like taekwondo so there. You're really going after points. It's not gonna look like you know. A bruce lee movie or anything that you think. Taekwondo is in the olympics. Yeah okay so why is karate. The you know the johnny come lately here. What what was it about it. That made it not a candidate as early as other martial arts have been part of the competition will be hottest. I mean these are very nice elegant choreographed sequence of movements with a lot on this like a dance. It will look like a dance in some respects. Yeah there's a lot of power speed agility Knowing the right breathing techniques. I mean it it. It's really going to be interesting to watch these things. But they're not fighting you know they're they're practicing all the moves. They need whenever they would be fighting. But they're doing this in a sequence of moves. Kinda get them. You know houston punch to follow with another that type of thing that they use inspiring because you're caught like a disciplined right. I mean it's the same all the way through each time and you have to kinda get that down before you you know before. There's any combat right..
StarTalk Radio
"john eric goff" Discussed on StarTalk Radio
"Is used in schools to facial recognition in policing in machines. We trust introduces you to the people building these applications fighting against them and trying to regulate it all gets used. This is super super important stuff. That's already a part of everyone's lives. Listen and subscribe wherever you get your podcast. You'll never forget the first person that put you onto mickey d's juicy quarter pounder with cheese Yeah you know what those golden crispy fries that you piled right on top of your burger just loving every single bite of that flavorful beef. Those tangy pickles in that hot melted cheese on man. Now i gotta go get one order ahead on the mobile app mobile ordering at participating. Mcdonald's download and registration required. Welcome to star. Talk your place in the universe. Where science and pop culture collide. Dr talk begins right now. This is startled. Wirt sedition the grass tyson. Here your personal astrophysicist. I got with me. Gary reilly gary new all right He's he's the one and only former professional athlete among us. So you you give off anticipate to this program. I just have to remind people every now and then and then and i got chuck of course how you doing man anybody out here clearly not a professional. Anything saw professional comedian. No i just get paid to do that. I am not professional at all. I didn't know those two cases today. We're we're we're continuing our olympic spirit. And it's going to be cosmic queries of for about olympic. Sports and our studio guest is professor. Eric gough not a stranger to start eric. Welcome back to star talk. Let to be with you all so you. You're a professor of physics university of lynchburg virginia. But what. I wonder is your particular expertise of many. Just in the general sports world being a physicist for physics and everything but in particular. And why we have you on this program is your expertise in the martial arts and a black built in karate and i'm thinking man. How did you originally become chair of the department that it a threat. Wow look at. That wasn't a karate threat. What you know i think folks in the fear is no fear this tokyo and i will also that tear up this dr. We'll get to that in a minute. Just your author of the book gold medal physics. I love it. It's just bringing science to where people want it and need it in In high performance. Competition i've this is just great to have you here and this cosmic worries. We'll get to the questions in a minute. But i just want to just sort of gets Some foundational information out there. How many other physics blackbelt karate people do you know. The only one i ever knew of was writing mcnair who was on eighty six challenger at fortunately i'm not. I'm not that familiar with too many other people who've studied physics and and martial arts. My second book is the physics of propaganda. Which i've i've really gotten into recently. I really liked propaganda. That's fun thing to do. 'cause you could beat see karate. Hey you don't beat people up. Chronic god is the whole point..