Something You Should Know - The Fascinating History of Blue Jeans & Incredible Science About You and Your World
Episode Date: November 15, 2018The evidence is pretty clear that in order to be productive and to do excellent work, you need to take breaks. You can’t just work non-stop. But when is the best time to take a break? I begin this ...episode by telling you EXACTLY when to take a break for optimum performance. http://www.menshealth.com/best-time-for-break There’s a pretty good chance you have at least one or two pairs of blue jeans – and maybe many more in lots of other colors! Jeans are the iconic American garment and have been for decades. Even as fashions and trends have come and gone there has always been a place for jeans. So where did they come? Why have they lasted? And what exactly is denim anyway – how is it different from other fabrics? Journalist James Sullivan, author of the book, Jeans: A Cultural History of an American Icon (https://amzn.to/2DGD45j) joins me to take you on an historical journey from Italy to the American west to a John Wayne movie set to explain the story of blue jeans. I bet there is someone famous or rich or super successful you would love to meet and maybe even get their advice –right? But you probably never tried because you figured they would never respond and it would be a complete waste of time. And maybe it would be. And then again, maybe not. Listen as I tell a story of a regular guy with no connections who got a lot of very important people to talk to him and exactly how he did it. https://www.quora.com/How-can-I-schedule-a-phone-call-with-a-billionaire/answer/Daniel-L-Jacobs You have got to hear science writer Marcus Chown explain why over 99% of your DNA isn’t yours or how you could squeeze the entire human race into a space the size of a sugar cube or why the moon is actually hurtling towards earth – constantly! Marcus is author of the new book, Infinity in the Palm of Your Hand – 50 Wonders That Reveal an Extraordinary Universe (https://amzn.to/2OKnczM) and he joins me to explain some scientific facts that will absolutely amaze you. This Week's Sponsors Calming Comfort Blanket. For 15% off the posted price of this incredible blanket to help you sleep better, go to www.CalmingComfortBlanket.com and use the promo code SOMETHING. -SimpliSafe Home Security. For great home security with no contracts or hidden fees go to www.Simplisafe.com/something -LinkedIn Marketing Solutions. To redeem a free $100 LinkedIn ad credit and launch your first campaign, go to www.LinkedIn.com/SOMETHING Madison Reed. For 10% off plus free shipping on your first order go to www.Madison-Reed.com/something Jet.com. For a great online shopping experience go to www.Jet.com Lincoln. To learn more about the Lincoln MKC go to www.Lincoln.com/wondery Learn more about your ad choices. Visit megaphone.fm/adchoices
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Today on Something You Should Know, it's important to take breaks during your work day.
But when? Well, I'll tell you exactly when.
Then, the fascinating history of blue jeans.
And as you might imagine, John Wayne and his blue jeans are part of the story.
Every time he was going to go on a new film set, his family, in a sort of a ritual,
would bundle the jeans up with rocks and toss them off a pier into the Pacific Ocean and leave them for a couple of days.
And then when he dragged them out, they had been broken down and softened by the combination of the stone and the water.
Also, just how accessible are those super successful people you'd love to meet?
More accessible than you think.
And amazing science you never knew.
Well, 50% of the cells in your body are not yours.
They are microorganisms which are hitching a ride.
It's even worse because it turns out that 99.75% of the DNA in your body does not belong to you.
All this today on Something You Should Know.
As a listener to Something You Should Know, I can only assume that you are someone who likes to learn about new and interesting things and bring more knowledge to work for you in your everyday life.
I mean, that's kind of what Something You Should Know is all about.
And so I want to invite you to listen to another podcast called TED Talks Daily.
Now, you know about TED Talks, right? Many of the guests on Something You Should Know have done TED Talks Daily. Now, you know about TED Talks, right?
Many of the guests on Something You Should Know
have done TED Talks.
Well, you see, TED Talks Daily
is a podcast that brings you a new TED Talk
every weekday in less than 15 minutes.
Join host Elise Hu.
She goes beyond the headlines
so you can hear about the big ideas
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Learn about things like sustainable fashion, embracing your entrepreneurial spirit, the future of robotics, and so much more.
Like I said, if you like this podcast, Something You Should Know, I'm pretty sure you're going to like TED Talks Daily.
And you get TED Talks daily wherever you get your podcasts.
Something you should know. Fascinating intel. The world's top experts. And practical advice you can use in your life. Today, Something You Should Know with Mike Carruthers.
Hi, welcome to another interesting, fun, and fact-filled episode of Something You Should Know, episode number 226.
And we begin today talking about breaks.
You've probably heard, and a lot has been written, about the importance of taking breaks when you're working,
and that you will ultimately do better work and be more productive if you take breaks during the workday.
But the question is, when?
When is the best time to take a break?
Well, according to research at Baylor University, the answer is mid-morning.
It seems mid-morning breaks are more helpful because it's easier to replenish your energy
early in the day when your concentration and motivation are higher than trying to replenish
yourself later in the day when you're more tired and depleted. But taking a break from work doesn't
mean taking a break and then go pay your bills or schedule a doctor's appointment or doing anything
else that is even slightly stressful. Otherwise, it defeats the whole purpose of taking a break. Taking a break means taking a
break from all work. So you're better off to go talk to someone, read an article, or just cyber
loaf on the internet. You'll feel better when you return. And that is something you should know. Few things are as all-American as blue jeans.
I'm sure you have a pair or two or three in your house somewhere.
Everyone has worn blue jeans.
So where did they come from?
And what is denim anyway?
And how is it different from other fabrics?
Why did blue jeans become so iconic and so associated with America,
particularly the American West?
Well, as you might imagine, there's a fascinating story here, and journalist James Sullivan
explored and uncovered it for his book, Jeans, A Cultural History of an American Icon.
Hi, James. Welcome. So take us back to the beginning. Where did blue jeans start, and
why, and how did they catch on? How did it all begin?
Well, blue jeans, the history isproduced, factory-produced blue gene
originated in 1873 with the Levi Strauss Company out of San Francisco. And the distinction is that
the mass-produced genes that Levi's began making have the copper rivets. The copper rivets make
the pants obviously more durable, they last longer. And at the time that was done so that
miners and other working class people would have
durable work clothes. The rivets have since become part of the whole fashionability of jeans
themselves. Everybody knows what denim looks like and feels like. I mean, you can spot it a mile
away that that's denim. That's what jeans are made out of. But what is it and how is it different than other fabrics?
Denim is a cotton twill material with the warp is dyed with indigo, although jeans have come in many different colors. And the cross thread is undyed, which is one of the things that gives
jeans their distinct look. The more the indigo abrades off of your jeans. In other words, when you wash them and wear them and the indigo starts to chip away,
it exposes the undyed cross thread underneath, and that's where the fading comes from.
That's where the distinct fading look comes from.
So in denim, the threads going one way are colored, and the threads going the other way are not colored.
They're white.
So that's what makes denim, denim. And so who
is Levi Strauss? Was he a real guy? Levi Strauss is a real guy, sure. Levi was a wholesaler in
San Francisco beginning in the 1850s, when San Francisco was a boomtown because of the
California gold rush. And he was selling all kinds of household goods, materials, including denim, to retailers.
And the idea of blue jeans, he was selling something like an early version of jeans,
among the many other things that he was selling for the first two decades of his existence
as a businessman in San Francisco. He was approached in the early 1870s by a small-time tailor in Nevada who had come up
with the idea of adding the copper rivets to make the pants more durable for his customers.
And this guy, his name was Jacob Davis, had been buying denim material from Levi Strauss
for a number of years.
And he approached his supplier and said,
if you can help me come up with the cost for the patent application, we can split it. And Jacob
Davis eventually went to work for Levi and ran the first factory that produced the first Levi's
jeans. So the original appeal of blue jeans was the durability, nothing else it wasn't fashion it wasn't cool color it
was just that they were very durable you know i like to say that for the first 75 to 100 years
of their existence as we know them i don't think anybody really thought twice about them other than
the fact that you wanted them to be durable you know you were probably wearing them uh you were
you were almost certainly wearing them for hard work.
You were a farmer or a miner or someone building the railroads or a construction worker, cowboy.
You were doing hard work and you weren't wearing them for the way they looked.
It was only really in the 1940s, let's say, that jeans really started to become something like a fashion item.
And how did that happen?
Well, in the early years, the 30s and 40s, one of the first ways that
the general mainstream of America came to understand what blue jeans were was by seeing
them in movies, in Western movies. The earliest cowboy heroes in the movies were sort of dandies.
They wore a lot of fringe and fussy-looking cowboy clothing. And then as Western films grew up, the John Waynes and men of his era
started wearing blue jeans that they felt were a little more of an authentic farmer or cowboy look,
which were dustier and sort of more rugged looking. Students and young people in the 30s and
40s began wearing them in part because they wanted to emulate their heroes from Western films, and also
in part because they wanted to show college students, for instance, wanted to show solidarity
with the working class.
So artists, college students, and young people really didn't start wearing jeans as casual
wear until the 30s and 40s.
What is it about Levi's that makes them so iconic, and they seem to win the battle every time other jean manufacturers show up?
You know, they've carved out a niche, but Levi's is still, in many minds, blue jeans.
Levi's is blue jeans.
Well, they clearly have created a company that's had astounding durability,
just like the product itself.
I mean, they did essentially invent the modern blue gene in 1873.
So that's a long time.
And the company was actually a regional company, mostly recognized on the West Coast until
50 or 60 years ago.
There was a time, it's hard to understand but there was a there was a long period of time where there
were other jeans manufacturers that were better known on the east coast and
levi's but
one of the things that the company was great at has always been great at
uh... marketing itself and uh... so in the thirties forties fifties levi's
really started to understand maybe more quickly than any of their rivals that you
could market these things not only to working men and women, but also to young people as their own
kind of leisure wear. And so Levi was really sort of instrumental in establishing that.
It does seem that a lot of jean companies have come and gone, but who would you say are Levi's,
historically have been Levi's
biggest competitors in the blue jean business?
Well, historically, it's always been Lee, and since the 40s, Wrangler. Wrangler was
founded in, the Wrangler that we know today was founded in 1947. Historically, it's always
been those two companies, although pretty clearly in the last handful, you know, there's
been cycles in jeans history
where various trendy designers have gotten a lot of attention,
and clearly in the last handful of years, that don't quite put up the same numbers that Levi's does,
but that have been grabbing the lion's share of the attention for the product.
But historically, it's Wrangler and Lee.
And certainly over the years, there have been different styles of jeans.
You know, there's the button fly and the zipper fly and the extra pockets and a lot of different styles of blue jeans.
Jeans were button fly until the 20s when the Lee Company actually introduced the zipper.
One of the interesting things that I found in researching my book and talking to many different people who've been in the industry for a long time is that we tend to think of jeans in stark terms going from the sort of rock and roll 50s look of Levi's
and the other companies or the cowboy look, and then suddenly in the late 70s and early 80s going
to the designer jeans of the disco era, Calvin Klein and Gloria Vanderbilt and Guess Jeans and Jordache and all
of those brands, when the fact of the matter is that from the mid-60s or so, jeans manufacturers
had been finding many different ways to stylize jeans, to make them something other than the
classic, as I said, rock and roll or cowboy look that we think of as sort of the old-fashioned
looking jean. In the 60s, kids started wearing their jeans lower on the hip.
They started wearing much more flared bell-bottoms.
They started toying with the finishes, the washes, pre-washing the jeans to sell them with a pre-faded look
and bleaching them and other methods of changing, altering the appearance of the
garment before it even hit the shelves.
So many different things were done to jeans before that designer jeans era that were intended
to sort of stylize them, upscale them.
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The Jordan Harbinger Show on Apple
Podcasts, Spotify, or wherever you get your podcasts. I'm speaking with James Sullivan. He
is a journalist and author of the book, Genes, A Cultural History of an American Icon. So James,
here's a question. Remember stonewashed jeans? I had several pairs of stonewashed jeans back in the 80s or whenever they were popular.
What does that term mean?
What are stonewashed jeans?
Stonewashed literally means washed in washing machines with pumice stone.
There's a fun tale that I retell in my book about John Wayne.
He did something that a lot of people did back in his day.
The jeans were never pre-washed in his day,
and so they came pretty stiff,
and you wanted to break them in before you started wearing them,
and a lot of people sort of started to realize that you could,
people would lie down in a bathtub with them on for an hour or two
so that they would shrink to form fit the body.
And one of the things that John Wayne did was every time he was going to go on a new film set,
he would take his family on a vacation beforehand,
and he would have his new pair of jeans that he was going to wear on the film set.
And his family, in sort of a ritual, would bundle the jeans up with rocks, tie them up, and toss them off a pier into the Pacific Ocean and leave them for a couple of days until the vacation was over with.
And then when he dragged them out, they had been broken down and softened by the stone, by the combination of the stone and the water.
Wow, I've never heard that story before. That's pretty interesting that John Wayne would tie up his jeans and throw them off a pier.
But as you point out, I mean, they weren't pre-washed, probably pretty stiff and uncomfortable,
so he probably wasn't the only one to do something like that to soften them up.
There's a well-known Hollywood designer, costume designer,
who did real stylish Western suits called Nudy Cohen, Nudy's,
the company that made all of those very stylized, fringy Western suits.
He did stuff for Elvis and lots of country singers.
And in the early 70s, before any of the major jeans manufacturers
began stonewashing their jeans on a mass production scale,
Nudy was another designer who did the same thing.
He took industrial-strength washers and tossed his jeans into the washers with stone
and tossed them that way.
From all accounts, I'm told the process is hell on the washing machines.
Yeah, I would think so.
And you probably end up with some very clean stones.
You talk about the prices people have paid for vintage jeans. It's pretty amazing. Talk about that.
Like a lot of other collectible artifacts, you know, jeans have, one of the neat things about them is that they've been such a huge part of American culture for so many years that at this point, a pair of hundred-year-old jeans, if it's in decent shape,
is worth a lot to someone out there. One of the interesting things about that is the idea of
globalization. I mean, one of the main products of selling Western culture to the rest of the
world has been blue jeans over the years. Other cultures have historically loved the idea of blue
jeans and what it says about American culture.
And so in the 1980s, the Japanese were going through their huge economic boom
and looking for places to spend their money, essentially.
And one of the places that they did that was on vintage American clothing,
and not just jeans but bomber jackets and Hawaiian shirts.
Certain looks that dated to the World War II era actually were huge in Japanese culture.
And so collectors there started paying crazy amounts of money for vintage blue jeans.
The collectibles market has kind of gone up and down a little bit since then.
But Levi Strauss, for instance, has a world-class archive of its own products,
and they have been known to pay huge sums for jeans that have been newly discovered that date back to 100 years or so. In a lot of cases, they're called miner's pants because the jeans
will be found in the mines of Nevada and the West. They were used in a lot of cases when they started to wear out.
They would be used to fill cracks to keep the insides of the cave sites intact.
And excavators have found fairly good examples of old jeans
socked away in the cracks of old mines in the West.
And if you were to look at a pair of those old jeans from way back when they were
miners' pants, if you were to look at them and feel them, I mean, would they feel like jeans,
or has the fabric and everything about jeans, have they evolved to such a point that you wouldn't
recognize them? They essentially look and feel like jeans, which is one of the amazing things
about jeans. I mean, over the generations, each successive generation for the last 50 or 60 years has initiated various kinds of twists on the product to make it their own,
whether we're talking about the extreme wide bell-bottoms of the hippie era or the extreme baggy pants of the hip-hop era in the 90s.
But essentially, it's always remained the same garment. And if you saw a pair
of jeans from the 1890s, you would absolutely recognize it as something very similar to what
we wear today. So why do we call them jeans? Do you know where the word jeans comes from?
I do. The word jeans comes from Genoa, Italy, which was a major shipping port
in the Middle Ages. And the French called the Genoans the Jeanne. And one of the things that
they made in Genoa was sort of a precursor to denim material, which was known as jean cloth.
So that's where that name comes from. The term denim comes from a French industrial town called Nîmes. That product was known for hundreds of years as Serge de Nîmes, which is shortened to denim.
Both jean cloth and denim were made in mass quantities in industrial England
and then brought over to America.
And denim is more durable than jean cloth, and at some point in the last 150 years or so,
the two terms sort of became interchangeable with one another.
The product is now made specifically with denim, not jean cloth.
But we, a long time ago, sort of conflated the two terms
and started calling denim pants jeans.
And I remember growing up, we called them dungarees.
So where does that term come from?
That actually comes from a town called Dungaree in India,
which is another part of the globe that several hundred years ago
was already mass-producing a durable cotton cloth used for work clothes.
Well, it is interesting how jeans have become such an important part of fashion
throughout so many different decades and throughout so many different fashion changes,
and yet jeans are a staple in all of them from the 50s on up. So what do you think the future
of jeans is? Well, I think that, excuse me, at this point, it's fairly safe to say that it's not going
anywhere. I mean, over the last handful of decades, we've seen fashion commentators make the case
periodically that maybe Americans are getting tired of their blue jeans and want something else.
But they always tend to come back around. I mean, they're durable,
but not only is each individual pair durable,
but the idea of blue jeans has proved to be extremely durable.
Sure has.
And it's such a great story that pretty much we've all been a part of.
My guest has been James Sullivan.
He's a journalist and his book is called
Jeans, A Cultural History of an American Icon.
There's a link to his book in the show notes.
Thanks for being here, James.
Hey, everyone. Join me, Megan Rinks.
And me, Melissa Demonts, for Don't Blame Me, But Am I Wrong?
Each week, we deliver four fun-filled shows.
In Don't Blame Me, we tackle our listeners' dilemmas with hilariously honest advice.
Then we have But Am I Wrong?, which is for the listeners that didn't take our advice. Plus, we share our hot takes on current events. Then tune in to see you next
Tuesday for our listener poll results from But Am I Wrong. And finally, wrap up your week with
Fisting Friday, where we catch up and talk all things pop culture. Listen to Don't Blame Me,
But Am I Wrong on Apple Podcasts, Spotify, or wherever you get your podcasts. New episodes every Monday, Tuesday, Thursday, and Friday.
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One of the great things about hosting this podcast is getting to talk with such interesting people
and learn such fascinating things and share them with you.
And we're about to do it again with Marcus Chown.
Marcus is a science writer and a journalist in the UK,
and he's really good at explaining scientific things about your world and the universe
in interesting and relatable ways that are easy to understand,
which is just the way I like it.
Easy to understand.
Marcus is the author of a new book called Infinity in the Palm of Your Hand,
50 Wonders That Reveal an Extraordinary Universe.
Hi, Marcus, welcome.
So let's start with one of the more provocative things you say in your book,
and that is that the sun could be made out of bananas,
and it wouldn't make any difference.
Huh?
Yeah, I mean that sounds quite a controversial thing, doesn't it really?
But I'm just making the point, why is the sun hot?
And the sun is hot for an incredibly simple reason, because it's got a lot of mass,
which is being squeezed down on its core by gravity.
And when you squeeze something, it gets hot.
So that incredible amount of mass pressing down on the core of the sun heats it to about 15 million degrees.
And at that kind of temperature, matter kind of turns into this kind of anonymous, amorphous state known as a plasma.
It doesn't actually matter what you start off with.
You always end up with a plasma.
So the sun is something like a billion, billion, billion tons of mostly hydrogen gas. But if you were to put a billion, billion, billion tons of microwave ovens in one place,
or a billion, billion, billion tons of bananas, you would get something equally as hot as the sun.
You say that we're born 100% human but die 50% alien. What?
Most, well, 50% of the cells in your body are not yours.
Okay, they are microorganisms which are hitching a ride so you know there's bacteria on your skin but most most important many of these
bacteria we don't actually know what they do but a lot of them are incredibly important so for
instance the the bacteria in your stomach help you digest your food. So if you take too many antibiotics, which kill those bacteria,
you end up with diarrhea because your stomach cannot actually digest your food.
So they're actually really important.
You don't have any of these organisms when you're born, none at all.
So you're 100% human.
You then acquire them from your mother's milk, from the environment,
and by the time you're about two or three, you've got most of them.
So when you die, you've got this load of organisms which don't belong to you.
It's even worse than what I've just said,
because it turns out that 99.75% of the DNA in your body does not belong to you.
It belongs to all these organisms that are hitching a ride.
So only 1 400th of the DNA in you is actually your DNA.
Well, that's just weird. That's just plain...
Very weird, isn't it?
Very weird. What do you mean by you get older on a top floor than you do if you're on the bottom floor?
Well, this is actually a consequence of Einstein's theory of gravity. And it tells us that time flows more slowly in strong gravity.
So if you are closer to, if you are working on the ground floor of a building,
you are closer to the mass of the Earth.
So gravity is marginally stronger and time flows more slowly for you than it does on an upper floor. I mean, it's a
fantastically small effect. But in 2010, physicists in America were able to show that if you stood on
one step of a staircase and someone stood on the step above you, you aged more slowly than they did.
And they did it by having two super accurate atomic clocks
on the two floors.
Now, you may think this is so ridiculously esoteric.
Why did, you know, who cares?
Well, it turns out that if you've got a sat-nav
or if you use a smartphone,
it determines your location
relative to global positioning satellites.
And these satellites are in highly elongated orbits,
and they carry clocks.
And when they come in close to the Earth,
they're in stronger gravity, their clocks slow down.
And when they go a long way out, their clocks speed up.
And if your phone or sat-nav did not compensate for that effect,
you would get your location wrong by an extra 50 meters every day.
So, you know, you may think it's really esoteric, but actually it affects your life every day.
Now, you say in your book that the entire human race could fit into the volume,
into the size of a sugar cube, which makes no sense at all.
So explain how that works.
It turns out that the atoms of which you're made
are really, really empty. Okay, you've probably got a picture in your mind of an atom that you
got from school. It's like a miniature solar system, you know, with a nucleus at the center,
which is like the sun, and electrons which orbit around it like planets. But that doesn't really tell you how empty atoms are.
It turns out that those electrons are very tiny
and they orbit a long way away from the nucleus
compared to the size of the nucleus.
To give you some idea, I'll tell you how much empty space
there is in an atom as a percentage, okay? It's 99.99999999999999%
I just counted that out on my fingers.
That's how much empty space there is in atoms, okay?
So that's how much empty space there is in you.
So if you were to squeeze all
of the empty space out of all of the atoms in all the 7 billion people on Earth, you could actually
fit them in the volume of a sugar cube. So it just shows you how empty matter is. We're ghosts,
really. The science of time fascinates me, the past, present, and future. And so talk a bit about
that and time travel and the possibilities of that and why this is so interesting.
Well, should I say about time travel? I mean, one of the most startling things about time travel
is that here we are in 2018 and no physicist can prove it's impossible.
And this is because Einstein showed us, really, in 1915,
that in principle, it would be incredibly easy.
One of the things you asked me earlier in our conversation is about why you age more quickly on the top floor of a building
than the ground floor.
And I told you it's because the time flows at different rates
and different gravity.
So immediately, you can see how to build a time machine.
You just have two regions with two different gravities,
where one where time flows at a particular rate
and another one where it flows at maybe a slower rate,
and you go between them, and you can go back in time.
I'll show you how.
So this is how you would do it.
You imagine a region near a black hole.
A black hole is the densest, an object with the most powerful gravity we can imagine.
So if you imagine you have a black hole where time is flying very slowly near it
compared to the Earth, and you have the Earth.
And you start clocks on the Earth and at the black hole at the same time.
So we start on a Monday.
By the time it's Friday by the black hole,
sorry, by the time it's Friday by the Earth,
it's still only Wednesday by the black hole because time is flowing more slowly there.
So if you could go instantaneously from the Earth to the black hole,
you would be able to go from Friday to Wednesday.
That would be a time machine.
Is there any way we could do this?
Well, it turns out that Einstein's theory of gravity
not only permits the existence of black holes,
it permits the existence of things known as wormholes.
These are shortcuts through space type.
You know, you can imagine you have a wormhole in California,
and, you know, you go in one mouth and you crawl a meter or whatever,
and you get spat out in London.
You know, it's a shortcut through space-time.
So basically, the recipe for a time machine is you have the Earth,
and you have a region near a black hole,
and you connect them with a wormhole.
That's a time machine.
Now, to build a time machine, it's totally impractical.
We'd need a black hole, we'd need a wormhole,
we'd need stuff with repulsive gravity,
it would require a lot of energy to do it.
And it would require like a super civilization to do it.
It's way, way beyond our technological capabilities.
But the point is is it's possible in
principle and that is what worries physicists i mean stephen hawking who died in the last year
famously proposed what was called the chronology protection conjecture which is just a fancy name
for saying time travel is impossible in other words there's got to be some law that we have not yet discovered that must prevent it. Because the problem is, if time travel is
possible, then all kinds of paradoxes, which you may have heard about, can happen. You, in principle,
could go back in time, and I don't know why you'd want to do this, but you could shoot your
grandmother, your grandfather, before your mother was born.
If you did that, then how could you have gone back in time?
Because you were never born.
So that is the paradox that keeps physicists awake at night.
They know that time travel would be very difficult,
very, very difficult to build a time machine in practice, but the fact that it's possible in principle,
and they can't prove it isn't worries them.
And the rhetorical question that's often asked in this conversation about time travel is,
if time travel is possible, where are all the time travelers from the future?
They should be coming back here and visiting us and tell us how they do that.
That's exactly what Stephen Hawking used to say.
One that you explore in your book that doesn't really seem like a science question,
but I guess it is, is why are there no photographs of the first man on the moon?
That's a very interesting question, because obviously next year is the 50th anniversary of the moon landing,
you know, 1969.
I can't remember how much was spent on the NASA Apollo program,
but I mean, in today's money, it would probably be hundreds of billions of dollars.
And really, after all that, Buzz Aldrin, the second man on the moon,
never took a photograph of Neil Armstrong.
So this was the publicity opportunity of all history missed. The astronauts
were, when they were in Houston before they went, they were told to take cameras, which they kept
on their chest, by the way. They were told to take them home for the weekend and practice with them.
But it turned out to be very difficult to take photographs on the moon because of the high
contrast. I mean, on Earth, we get soft shadows, but on the Moon, you know, there is no air to soften shadows,
so it's either very, very bright or it's very, very dark.
So the only photographs we actually have of Neil Armstrong
are a photograph taken, which is actually in Buzz Aldrin's visor,
a reflection in his visor,
and those fuzzy actual TV pictures, that's all.
Which I think comes as a surprise to most people,
and it's one of those good little facts to have to impress people at a cocktail party,
but that there are no pictures of Neil Armstrong on the moon,
except the fuzzy TV pictures, but no real high-quality still photos.
No, I mean, it's just absolutely incredible that that would not be done.
You know, I don't know at NASA whether they held their head in their hands.
Right.
I mean, basically, the first two spent only two hours on the moon.
That's all they spent, and then they came back.
And I don't know if anyone thought, oh, my God, we've missed out on that opportunity.
We didn't photograph the first
man on the moon. Okay, and I did want to ask you though, because there's one thing in your book
that I read that I've been thinking about ever since, because it boggles the mind, but it makes
so much sense when you hear the explanation. It's about the moon. We think of the moon as being up
there in the sky, in orbit, around the Earth, and it just sits up there.
But you say, no, no, the moon is plummeting towards the Earth.
So explain that.
Well, this is a very interesting question because, I mean, it's often a question I get asked by children, you know, in school.
They say, oh, why don't satellites fall down?
Why doesn't the moon fall down?
The answer is it is falling down, but it never
reaches the earth. I mean, this was, it took the genius of Isaac Newton, you know, in the
1600s, probably the greatest scientist who ever lived, a man whose father couldn't even
write and signed his name with a cross, you know, but he became the greatest physicist
of all time. And he thought to himself, why doesn't the moon fall down?
And what he did was he imagined a cannon, you know, firing a cannonball.
And he thought, well, if it fires the cannonball pretty much horizontally along the ground,
you know what will happen.
The gravity will curve it down and it will just hit the ground.
And then Newton thought, well, wait a minute, what if I had a bigger cannon?
Then I'll be able to fire the cannonball even faster.
Then maybe it might go perhaps a mile before gravity curved it down and hit the ground.
And then Newton thought, what if I had the mother of all cannons?
Something that could fire a cannonball, I can't remember the speed,
but probably about 18,000 miles an hour, something like that.
What if I had a cannon that could do that.
Then he realized that as fast as the cannonball would be falling back down to the Earth,
the Earth's surface, because it's round, would curve away from it.
So the ball, even though it was falling, would never get any closer to the Earth's surface. And so it would fall forever in a circle.
And that's what he realized the moon was doing.
The moon was falling forever,
but never getting any closer, going in a circle.
And the genius of that was when he recognized
that the moon was falling,
he was able to compare how,
because he could see how fast it was falling.
He knew how fast the moon went around the Earth and everything.
He could see how fast it was moving.
He could compare it with how fast an moon went around the Earth and everything. He could see how fast it was moving.
He could compare it with how fast an apple fell from a tree.
And from that comparison, he could deduce the behavior of gravity. And Newton was able to deduce that simply because he was the genius who realized the moon is falling.
And the answer to all those schoolchildren is that the satellites are falling as well.
But they're falling in a circle.
And as fast as they fall towards the Earth,
the Earth's surface curves away from them, so they never get any closer.
That is so weird.
And yet, when you think about it, though,
it makes sense, sort of, to non-scientific people like me.
And it is one of the 50 wonders that you talk about in your book,
Infinity in the Palm of Your Hand, 50 Wonders That Reveal an Extraordinary Universe.
Marcus Chown has been my guest, and there's a link to that book in the show notes.
I appreciate you being here, Marcus. Thank you.
Thanks, Mike. It's been a real pleasure being on your show.
I bet at some point in your life you've thought about writing to some billionaire CEO or someone very successful or very famous in hopes of getting a meeting.
But you never did because you knew it would be a huge waste of time
and would probably go nowhere.
Well, think again.
When 21-year-old Daniel Jacobs moved to San Francisco, he had no money and he knew no one.
He knew he needed to make connections, so he decided, what the heck,
and he wrote to several captains of industry, CEOs, presidents, and other top-level executives.
He recalls that,
I let them know that I admired specific work decisions they'd made
and character traits they'd displayed,
and it would be amazing if I could learn from them.
Then, something amazing happened.
He got replies, lots of replies,
from the president of Morgan Stanley, the president of NBC,
the chief marketing officers of Coca-Cola, Intuit, and many more.
Many of them agreed to speak with him and several became mentors.
Daniel is now a very successful entrepreneur, having started several companies of his own.
The president of NBC told him years later why he agreed to meet with him. He said, because in the 20 years of being in this business,
every single person who reached out to me cold wanted something.
They wanted money, they wanted a job, they wanted something,
and you were the first person who asked only for advice.
And that is something you should know.
I invite you to share this podcast with someone you know who might benefit from it.
There is usually a share button on every podcast app out there,
whether you listen on Google Podcasts, Apple Podcasts, TuneIn, Stitcher, Spotify, wherever you listen.
It's easy to share, and I'm sure someone will appreciate that you did so.
I'm Mike Carruthers. Thanks for listening today to Something You Should Know. Welcome to the small town of Chinook, where faith
runs deep and secrets run deeper. In this new thriller, religion and crime collide when a
gruesome murder rocks the isolated Montana community. Everyone is quick to point their
fingers at a drug-addicted teenager, but local deputy Ruth Vogel isn't convinced.
She suspects connections to a powerful religious group.
Enter federal agent V.B. Loro,
who has been investigating a local church
for possible criminal activity.
The pair form an unlikely partnership to catch the killer,
unearthing secrets that leave Ruth torn
between her duty to the law,
her religious convictions, and her very own family.
But something more sinister than murder is afoot.
And someone is watching Ruth.
Chinook.
Starring Kelly Marie Tran and Sanaa Lathan.
Listen to Chinook wherever you get your podcasts.
Hi, I'm Jennifer, a founder of the Go Kid Go Network.
At Go Kid Go, putting kids first is at the heart of every show that we produce.
That's why we're so excited to introduce a brand new show to our network called The Search for the Silver Lining,
a fantasy adventure series about a spirited young girl named Isla who time travels to the mythical land of Camelot.
Look for The Search for the Silver Lining on Spotify, Apple, or wherever you get your podcasts.