up next on a second look, what a difference a century makes. in 1913 this was the invasion that made cars available for almost everyone, the assembly park. and it created the first cars to drive through yosemite park. and what happens when two people end up loving the same car, sometimes they find love

for each other. good eving and welcome to a second look. i'm julie haener. this year marks the 100th anniversary of an industrial invasion that revolutionaried transportation in america. it was in 1913 that henry ford started using the invasion. bob mckenzy looked at the significance of that change. >> reporter: in the early days of the century, maneuvering your horse and buggy down market street was no picnic. particularly with those pesky new horseless carriages scaring the horses and mucking up the air. of course you had to be rich to own an automobile which didn't add in their popularity with everybody else. the auto owned the streets in san francisco in the next decade. but it was still the rich who

owned them. henry ford changed all that. instead of making cars one at a time, the ford factory mass produced them with an idea called assembly lines. each worker did the same job over and over enabled the planet to crank out a new car every 10 minutes. at last regular folks could take to the roads. ford bragged his model t could go any where and proved it. with a car northern californians could climb the mountain in yosemite. people who could not ride a horse or take a week to hike up, getting wheels was almost like getting wings. the more cars we had, the more business we did. the more business we did the more cars we could buy and in the roaring 20s they did. running up and down the streets

of san francisco a show of machinery over topography. but outside city limits there were no paveed roads and no road signs. the cloud of dust raised by one automobile made visibility pretty chancy for anyone behind. car owners lurched in and out on streets and bouncing on rocks. in 2005, joe fonzi met some people who raced them and found out it's a lot of work. >> reporter: about 300 vintage cars are taking part this year in the wine country classic. open wheel cars, stock cars,

ferraris, cobras, you name it. there's only one oldest car in the united states and this is it. it's a 1915 ford model t speedst er owned by firefighter lucas. racing the car that features 90- year-old technology presents a few challenges like -- >> no brakes. i mean it has brakes but they only grip the rear hub of the tires. you can go around two laps, by the end of the two laps you don't have any brakes. >> reporter: that's not all, race cars of this era require a driver and a passenger. the passenger is not along to enjoy the scenery. >> the passenger definitely has a job. first of all he watches out for all the fast cars but mainly he's -- there's no fuel pump or any of that kind of thing.

it's all splash system and it has a pressurized to pressurize the tank to get some pressure in the carburetor. >> he's not pumping all the time. he watches the pressure gauge. if it starts going, if it starts missing, we pump it to get it going again. >> gary's dad who owns a model t is his speedster. >> over the decades automobiles have played an important role in young romances. but for one castro valley romance their love began later in life and it was sparked by the ford model a. bob mackenzie brought us their story. >> reporter: romance blooms in strange and wonderful ways. in the case of ted crosby and katherine ruckerson. he liked her model a and he

liked his. years ago when reist was married to somebody else they belonged to a club. ted lost his wife and the following year katherine lost her husband. as old friend they naturally fell together. >> she needed help with her car. she came to me for a tune up and that's when we met. >> reporter: he must have given her a pretty good tune up because now they share a house and a life in the oakland hills. sometimes they will go for a ride on his sliver sometimes in hers. there are still about a million model a's in the country. their cars are not that rare. the model a was the car that followed the model t. the first mass produced automobile. the good reasonses that they were simple, economical and

dependable. besides that they were fun. and when a couple has fun they don't fight. well not much any way. >> he's opinionated. that's all. >> well after you get so old you become opinionated. >> reporter: katherine's car not running at the moment. but usually ted can keep up the work with the help of katherine. >> she will stay here and chase tools for me. >> that's the best thing is to be a go-for. still to come on a second look, taking a tour in a model t. yosemite here we come. and a bit later we visit the california volcano that erupted less than a century ago.

this year is the 100th anniversary of ford developing the assembly line to build model ts. it's also the 100th year of yose cars. we're introduced to the man who gave people the opportunity to drive model ts into yosemite. >> reporter: in the good old 1800s, the horses were the main way to get around. but a few years later in 1908, ford reinvented america's pioneering spirit and put the

horsepower into the model t. there were 144 miles of concrete paveed road in the whole country. so almost all of america's automotive journeys were by necessity an adventure of the back road variety. in california one of the most challenging of those adventures came here to yosemite. to the valley of granite domes where mountains were carved by the sculpting hands of giant glaciers. everywhere that people drove their model ts it was a challenge. >> coming to yosemite was the same kind of adventure. you would have blow outs, you would have engine problems. one of the great things about these cars is they were easily fixed. >> reporter: these with the dusty days of the early 1800s century. these times were changing

quickly. the same year cars were allowed to enter yosemite valley henry ford sold 288,000 model ts almost half of all the cars sold in america. this able was slowly but sure by becoming part of the fabric of american life. but that was a long time ago. what would you think about someone reaching back in time and pulling the model t out of distant memory and placing in the present. george is doing just that. he is offering a vacation that includes hotels, fancy food and the chance to drive the model t along the road as the earliest adventurers. >> we use model ts with no alterations at all from the time they got off the assembly line and people get the feel of what it was like for grandpa to

start driving the roads of america. >> reporter: some people may have to relearn driving a model t. others like myself have to learn it from scratch. >> this is the gas line so you can raise it up and down. release the hand brake just a little bit and step on the gas pedal which is on if right side. >> reporter: so we began in the parking lot of the taneya lodge. the adventure lies not here but out there on the back roads of yosemite. >> this car is 90 years old and this is original equipment. yohave to keep in mind this replaced literally the horse and buggy. so this was a step up for folks. >> reporter: people could pull a buggy up to 10-miles-an-hour for several hours.

the model t could run pretty much all day at 30 miles per hour. stories of the old days traveling in a t abound. the kinds of tales that in the telling eventually evolve into history. >> one of the stories they have is going into yosemite because the brakes not being very good they would fall a tree, tie a cain to -- tie a chain to it and tie it to the back of the car on the way down a hill to help slow them down. >> reporter: especially when traveled on the old merced river road. >> i'm sitting on top of the world ♪ rolling along, just rolling along ♪ i'm sitting the blues of the world, just singing a song. just singing a song.

>> i had a friend that used to come down the road from fresno. i asked him how long it took. he said i will tell you how long it took. two flat tires. active volcanos in california. yes and one of them erupted less than a century ago. >> and later, the blast from the past. what it takes to be a black smith in the bay area. hey! did you know that honey nut cheerios

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a lot of people might not realize that california has active volcanos. one of them is -- it was a warning that a year later mount lasen would erupt. in 2001, ktvu's bob mackenzie brought us this story of what happened. >> reporter: even at the height

of the summer vacation season, lasen park is a quiet place. the mountain rules in majestic silence at 2,000 feet overlooking its court instructs the jury -- its kingdom of challenge. the quiet is broken by a passing vehicle or by a stream smelling thick of sulfur. 87 years ago the silence was abruptly broken. lava and mud came roaring out of the mountain top. geologists knew that a volcanic eruption formed mount lasen25000 years ago. but even they called lasen --

the eruption was not the first odd phenomenon. for a full year the mountain had been emitting blasts of steam. fortunately there were no hikers near the summit on that morning in may 1914 when the old volcano blew it top. buildings were lost but no lives. success of eruptions formed a huge mushroom cloud that loomed ominously close to the town of red bluff and looked like this 15 miles away. throughout the park you can see and smell the evidence of more hot stuff down below. boiling water and mud bubble up emitting gases. >> there are going to be more

eruptions in the future we just don't know if it's within our lifetime or if it's a geologic lifetime because if you look at all the volcanos in lasen national park. which every mountain is a volcano or part of a volcano we have many eruptions over the past 20,000 years. >> reporter: we saw what a volcano could do. mount st. helen exploded sending down dead lila sra and smoke that sent hundreds running for safety. sending vacationers running. and as news of its spread, curious californians took to the mountains to have a look at this amazing thing an active volcano right here in the

united states. picnicking families would gather at ered a safe distance and take on the show. leaving a devastated area miles wide where there had been forest. the eruption put the previously obscure area on the map. laser became a national park in 1916. today's visitors come for the awesome views, the wild flowers, the clouds that look close enough to touch. >> a first guy coming through here. the devastated area was actually devastated there wasn't any trees. just very small brush and you could see all the way to the mountains now it's forest. so we've seen a tremendous change to this place in 40

years. >> it's not as popular as yosemite for instance. i would say the complaint of the forest service, nobody ever seems to come up. it seems to be a lost attraction for the park service. that's one of the attractions that brings us up here. we've been to yosemite and had to fight the crowd at the valley floor and that's not for us anymore. >> when we come back to a second look. bob mackenzie introduces us to a man doing an ancient job in a modern world.

earlier tonight on a second look we pointed out that this is the 100th anniversary of the ford assembly line. and while it would create jobs for some, it would eliminate jobs for many others. among those black smiths. but there are still some around. and bob mackenzie found one in san francisco. >> reporter: the black smith

shop was still such a familiar sight in american towns in 1905. a black smith made horseshoes and other iron items. heating metal on a form and pounding it into shape. in san francisco at that time the automobile had pretty well replaced the horse. but san franciscans still went to get a tool made or metal park replace. wilber had an apprentice. now here's the surprise. conclin's shop is still there. still in the same spot. the last survivors of all those

old buildings on fulsome. inside you will find mr. clockers apprentice. for almost 40 years, tony roselini has been practicing the trade. just like he did from the old black smith. making tools and parts. >> most people like it. they like coming in here and they're amazed to see this downtown. >> the machines are remnants of the 1,900th century. the but they do the job now as they did then. on the wall hang ancient by functioning devices clamps and forms. the floor is cushioned with a

honest dirt. the forge gets metal red hot or white hot if necessary. >> heats the metal up. if you heat it up you can bend it. shape it. smash it you can do whatever you want with it providing you don't get it too hot or it will burn up. >> have you ever burned yourself? >> yes, sir. i've burned myself and hit myself. i've been lucky. i've only been to the emergency a couple of times. >> he will apply a coat of rust resistant paint and the new tool is ready for a long life. over the years developers have made offers on the property the shop stands on but the owner is roselini's ex-wife who wants to keep the shop the way it is.

>> you get tired doing this in. >> yeah i get tired i'm an old guy. my back bothers me once in a while. but once i feel pretty good, i still feel pretty good so i am still able to do the work. i take care of special customers and they depend on these so as long as i'm here i'll do it. >> reporter: so for the forseable future this building will be here no matter how many skyscrapers spring up around it. and tony rosini will be here pounding out useful things. >> that's it for this week's second look. i'm julie haener, thank you for watching.

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