You know, like we live in this world where the last two years, we were dealing with a global pandemic. So toughness , I think, and resilience have been topics very much top of mind for most people. So the book couldn't come at a better time.
They may not be, you know, tough, that is required. Their toughness might be undermined. So people, we worry, you know?
Kevlar, the material used in bulletproof vests, whose whole job is to take the energy of a bullet and spread it out before it reaches the body, well, it has a toughness of up to 50 megajoules per cubic meter. Experimental ultra-high strength steel has a toughness of around 170 megajoules per cubic meter.
Gemologists— scientists who study gems— use the Mohs hardness scale to measure a gem’s hardness, or resistance to scratching. They also study gems’ toughness , or resistance to chipping or fracturing; and their stability, or resistance to heat, chemicals, and light that can cause a gem’s color to fade. Side note: you might have heard gems described as semi-precious or precious, supposedly based on their rarity.
That could be stress, anxiety, uncertainty, all that stuff. And what toughness is is feeling that discomfort and then creating the space to navigate it so that we can get to a wise decision or a wise action.
So just to sort of level set, your book talks about four pillars, right? Four pillars in developing toughness , and the first one I think is what this particular example with the Navy SEALs falls on there, and that's embracing reality. Then there's the second pillar is listen to your body.
We're just focused on plastics, and within the area of plastics, we've focused on soft, rubber-like materials, and viscoelastic materials, materials that have extreme toughness . 3D printing has had a 25% compounding annual growth rate over the last 25 years or so, and it's
And for us, the figure of merit-- and I think for a lot of 3D printers-- the figure of merit should be the toughness . And the toughness is the integrated area underneath that stress strain curve. And that explains how much energy a material can withstand per cubic meter, or square meter if it's an impact
So this is a material with close to a 400% strain capacity, that has a stress up to about 50 MPa. So this has a toughness of about 100 megajoules per meter cubed. So these parts that we're printing right now daily for a lot of our customers.
On a stress/strain graph, it's proportional to the area under the curve. This is the material's toughness . Kevlar, the material used in bulletproof vests, whose whole job is to take the energy of a bullet and spread it out before it reaches the body, well,
it has a toughness of up to 50 megajoules per cubic meter. Experimental ultra-high strength steel has a toughness of around 170 megajoules per cubic meter. But spider silk? - This piece of silk had a toughness of about 205 megajoules per cubic meter.
This book, however, tries to redefine toughness . So how do you define toughness today if you don't go for that gritty, actual traditional definition, let's call it? Yeah, to me, I like to look at it through a decision-making framework, meaning we need to be tough whenever we experience
So it's not their development mechanism. How they develop resilience and toughness and ability to handle the harrowing experiences that special forces have to go through is entirely different. The Hell Week is essentially their version of the college entrance SAT or ACT exam.
You're in debt. And next thing you know, you'd have a bad afternoon, bad evening. And it shows discipline and toughness .
But we've been able to build materials with incredible strain capacity, things that can stretch five times their original size and then snap back into shape. Or things today that have a toughness of 16 megajoules per meter cubed, and some experimental materials that are far greater than that. And I'll get more into those details in a little bit.
And this is partly in her case, saying to herself, I will re-invent myself. I will develop skills and resilience and toughness that I never thought I had. And that's just perfect.
they might spoil the children. And the children may not learn the toughness that is required in life. So we bring all this kind of fear and other resistance.
high strain capacity materials. But perhaps at very limited toughnesses and very limited stresses. So what are some of the innovations that allow us to print these materials?
So it's not able to absorb as much energy. And that's why spider silk wins on toughness . - But it's the ultimate in green chemistry.
Like when do you think this is going to come in handy? But he was really into like the mental toughness aspect of it. Yeah. I really want to do it because of David Lynch.
picture of our treatments that we did on each other several times a day hitting each other on the back we really developed a very strong pain tolerance and a toughness that we wouldn't have otherwise and this just so shows kind of our symbiotic relationship and how we helped each other stay alive
- Oh, okay. So that might be like four times Kevlar. But the silk from the Darwin's bark spider can have a peak toughness of 520 megajoules per cubic meter. That's roughly three times the strongest steel out there, and 10 times as tough as Kevlar.
I was at one point the fastest high schooler in the nation in the mile my senior year, running a mile in four minutes and one second. And back, then I thought toughness meant just put my head down, pushing through the pain, going until I puked and threw up, and that's how you handle discomfort and doing difficult things.
That is the inside of a Vostok, it was called, sphere. And that something was a kind of a grit and a kind of a toughness and a kind of inner reliance, something that enabled him, when he was whatever he was,
From the moment he meets her, he is taken by her. He's entranced by just her demeanor, her toughness . And in the same sense as Dmitry, Gleb has had a very hard childhood-- parents passing away, traumatic events, things like that.
and who they want to be. So with "Strong is the New Pretty," the focus was on more about toughness and grit.
You're in debt. And next thing you know, you'd have a bad afternoon, bad evening. And you know what they've gone through and the amount of pain and mental toughness that it would take to keep
Experimental ultra-high strength steel has a toughness of around 170 megajoules per cubic meter. But spider silk? - This piece of silk had a toughness of about 205 megajoules per cubic meter. - Oh, okay. So that might be like four times Kevlar.
then she said, "JD, I promise you, and no one will ever find out about it." And I was like, "Whoa." So, like for the sake of this kid, I pretty much stopped hanging out with him, but that toughness , I think, was like a necessary part. It was like through sheer willpower that she kept me on the straight and narrow. And uh again, I don't know where I'd be without
Springsteen's father was built like an ox. And he was a working man who prized strength, toughness , and the ability to fight. Bruce Springsteen, by contrast, was the sensitive kid.
Ever since, Steve has expanded his work and became a world-renowned expert on performance, well-being, and sustainable success. His most recent book is "Do Hard Things-- Why We Get Resilience Wrong and the Surprising Signs of Real Toughness ." And Steve works with executives, entrepreneurs, and athletes on their performance and mental skills.
I got it right here. Like I said, it's called "Do Hard Things." And it's about toughness and resilience. And my first question for you is, why did you write a book on toughness and resilience and why now?
Like I said, it's called "Do Hard Things." And it's about toughness and resilience. And my first question for you is, why did you write a book on toughness and resilience and why now? Yeah, so it's-- to answer that question, we have to go back a ways, because it's a topic I've been thinking about for a long time.
Like you said, you put your head down, and you just grit through. This book, however, tries to redefine toughness . So how do you define toughness today if you don't go for that gritty, actual traditional definition,
So when you look at, OK, I got it, no Hell Week. Well, what does the military actually do to develop this idea of toughness ? Well, when you look at the research and you talk to again special forces, military operators, it's pretty simple.
He was a high school football coach. But he specialized in something a little distinctive, mental toughness . That was his hook.
What also happened was something that he never expected. In the audience, some of those parents had interesting jobs where they realized that a mental toughness coach could actually be something that they could use as well.
So they need plastic parts that can essentially help keep wells open or help close up wells. We need parts that have a high strain capacity, but have a high toughness , and have to be in pretty complex shapes. And so those are the kinds of things that we like to tackle.
Greg, you've said that from a young age, you found passion and mental toughness that drove you to pursue diving.
So responding is reaching for those vegetables or that more filling meal because what we're trying to do is create a little bit of space so that we can wisely navigate through things. And then the last pillar is transcend discomfort, which essentially is often with toughness , we often think of it as like the individual component. It's just me against the world, and I'm going to figure my way through this.
but when you're competing at the highest level, it takes not only your physical strength and stamina and agility, but also mental toughness .
And it resonated with a lot of people, but it also came from a place of street toughness .
He understood that in order to be a viable Republican candidate, he needed to show real fiscal toughness and conservatism.
You're in debt. And next thing you know, you'd have a bad afternoon, bad evening. So first of all, when they go out and are talking in public, it's all about projecting this toughness and invincibility.
And those combined have a really high strength with high strain capacity. And for us, the figure of merit-- and I think for a lot of 3D printers-- the figure of merit should be the toughness . And the toughness is the integrated area underneath that stress strain curve.
But in general, training, when you train, we want you to train-- certainly, part of your training should be mental toughness as well.
In fact, he meant the exact opposite. Vigil's notion of character wasn't toughness .