Pratica di Shadowing: I Built a Roller Coaster In My Lab - Impara a parlare inglese con YouTube
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This is the most epic birthday party ever!
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This is the most epic birthday party ever!
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It's got a jet-powered tire swing,
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a custom-built roller coaster, and an indoor sledding hill with actual snow.
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And I set all this up to surprise the world's most deserving kid.
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Safety is for losers!
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YAAAHHHHH!
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And importantly, three months ago, none of this existed.
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Because that's
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when I reached out to a friend of mine who many consider to be the greatest engineer this world has ever known.
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Oh, hey Mark.
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Phineas!
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I'm planning on throwing the world's greatest birthday party for this kid named Ethan.
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I can explain later.
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For now, I need to know if you've got any ideas.
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Oh, that's a great question, Mark.
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One time, Ferb and I made the world's first rocket-powered tire swing.
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You'll just need a tire,
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your standard Illumon parts, don't forget your high-powered rockets.
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Oh, and as you can see,
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as long as you don't remove this screw, you'll be fine.
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You do realize that breaks,
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like, seven laws of physics, right?
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Well, we're working with cartoon physics,
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but I trust you can figure it out.
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In the meantime, I was thinking Ferb and I could take a crack at your world record-breaking elephant toothpaste experiment.
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Oof, I think we both have our work cut out for us.
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I'll talk to you later.
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Now, I knew from personal experience,
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if you can pull off a Phineas and Ferb invention in real life,
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it makes for a really epic party with 15 tons of jello to spare.
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But the problem here was their rocket powered tire swing leaned
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very heavily on the creative boundaries of cartoon physics with estimated peak forces
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that would be 35 times what a human could endure.
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So as a first pass,
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I just slapped two rockets with 2500 newton seconds total impulse to a single chain mounted to a tire swing
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and generously gave our 180 pound crash test dummy Newton first dibs on the ride of his life.
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Initiator is on!
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This is to test my hypothesis why Phineas and Ferb is an animated show.
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3, 2, 1!
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And after the smoke cleared We lost our pants That was the most powerful de-pancing in history.
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The single chain is gonna make it tough
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So to keep us from immediately spinning out of control
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and potentially losing all our dignity in the process We doubled the chains for more stability.
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Here we go.
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And this time, let it rip!
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The exact same thing happened.
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Oh no. He can't keep his clothes on.
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I think only one of them ignited,
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and a high-speed camera replay revealed that's exactly what happened.
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So once we fixed the faulty ignition wire, we tried again.
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Go!
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Yeah!
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It's gone!
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Causing Newton, which I'll remind you weighs more than I do,
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to launch 10 feet into the air, completing the stylish dismount.
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That was definitely both that time.
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His shoes are on!
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That's a W!
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And while the dual chain configuration did provide a lot more stability,
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the slo-mo revealed there was really no way to reliably keep
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the thrust vector aligned in the best direction to loop us around.
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This is too squirrely, we need to go to rigid chains.
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So to fix that, we swapped the two chains with two solid rods.
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Igniter's hot!
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3, 2, 1, GO!
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SWIM!
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I can't see it!
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As you can see here,
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the rocket forces were so high,
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it ripped our entire half-ton steel swing structure out from the stakes anchoring it into the ground.
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Lift off!
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He's gone!
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He's gone!
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Alright, well that's a successful rocket swing.
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Now we just gotta figure out how to make it slightly more safe.
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So we were off to a promising start.
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We just needed a little more inspiration.
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Hey Mark, how's the build?
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It's got a little work left,
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but it's getting less lethal by the minute.
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I do feel though that the party needs a little something more.
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I've got it!
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How about you build them a backyard roller coaster like the one we made at the beginning of summer?
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Steel tracks, carts with seat belts,
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and of course, be sure to add extra thermal shielding for when you re-enter the atmosphere.
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Aren't you a little young to be building things that require extra thermal shielding for when they re-enter the atmosphere?
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Yes.
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Yes I am.
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Well, good luck!
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Oh, gotta go!
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Herb just arrived with our star of the show!
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No!
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Phineas, you don't need an- Talk to you later, Mark!
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Ugh, that's gonna get messy.
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Now the good thing about roller coasters is unlike two story tall rocket power tire swings,
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roller coasters actually exist.
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So I did what any self-respecting engineer would do as a first step,
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and conducted some tedious research.
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Now I knew that finding the perfect Goldilocks zone for our birthday guest would be critical.
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Not so extreme it sends him back to the hospital
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but also not so boring it feels like watching a William Osmond video.
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So armed with all the learnings from our tedious research,
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we set out to build the perfect indoor roller coaster for my buddy Ethan.
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By the way, this is Ethan.
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And what you should know about Ethan is he was recently diagnosed with a rare
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and severely debilitating neurological condition that left him bedridden,
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causing him to miss most of his school year.
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In fact, his pain and nausea was so severe,
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he couldn't even walk from one room to another.
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But the other thing you should know about Ethan is he's incredibly resilient.
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And after a full year,
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he'd recovered enough to make his way back to school.
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And as luck would have it,
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he not only had a birthday party coming up,
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but he was also a massive Phineas and Ferb fan.
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Which was perfect, because we had our first prototype of the world's greatest Phineas and Ferb indoor roller coaster ready to test.
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Okay, ma'am, here we go!
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What?
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Let's go, let's go!
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Oooh!
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Oh no!
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I think we're gonna have to check our calculations.
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Yup.
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So I called up some of my buddies who are really good at this,
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and they introduced me to the efficiency of their calculations,
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while I introduced them to the efficiency of a 10 second build montage.
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And while not yet perfect,
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we were certainly on the right track.
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Now we just needed a few more of them.
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Good.
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And things were coming along great,
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but if I was going to get approval from the world's most creative engineer,
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it would need a little something extra.
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So I took a closer look at their original coaster and while we definitely can't send Ethan to France,
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we definitely could send him through a snake drop,
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a mud bucket, and a full-on car wash.
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Snakes on a train in three, two, one!
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Snakes, check.
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This build was elegant.
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Our snakes pairing beautifully with a catapult calibrated mud bath.
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Ah!
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That's why we wear safety glasses.
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Why are you smiling so much?
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You ready?
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Clean me off!
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Followed by a cleansing soap scrub infused with eucalyptus oil at 40 miles an hour.
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That ought to do it.
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Gonna need a bit of a rinse off!
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And finally air drying with a gentle breeze.
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Okay!
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Okay!
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Clean as a whistle.
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Oh good.
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So now with both the roller coaster and the rocket swing pretty much ready to go,
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I opted for a check-in.
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Hey Mark, how's it going?
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I mean, it's getting there,
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but how do we really make this the best birthday party ever?
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How about...
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Swinter?
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It's like summer in winter.
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All you need is a snow cone maker and a bunch of jet-powered fans.
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But be sure to keep your windows closed.
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You really don't want to bring Swinter inside your house.
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Cuneus, you pointed-headed genius, I think you're onto something.
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Alright.
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Oh, while I have you,
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Ferb and I were wondering if your elephant preferred mint or bubblegum flavoring bubblegum flavoring.
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Neither!
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Don't you boys think you're taking this a little too literally?
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No!
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No we don't.
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Alright, well see ya!
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He hung up.
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Snowing indoors?
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How hard could this be?
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Turns out a lot harder than the cartoon solution of snow cone makers and fans.
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So I invited out an old friend to help.
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Oh my god.
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This is crazy.
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This is Fletcher, and if he looks familiar to you,
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that's because five years ago I surprised him with a special birthday party of his own,
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where he triggered the first ever Devil's toothpaste explosion,
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and then broke the world record for the highest elephant toothpaste experiment.
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Now at the time, Fletcher was dealing with a very rare form of brain cancer,
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and since so many of you have asked for an update over the years, here it is.
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I'm five years free of any sign of disease,
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and I'm a senior in high school that's going to college.
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And you are almost as tall as me.
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I'm going to say I'm still taller.
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So I explained to him the engineering challenge of creating a non-cartoon indoor snowstorm,
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Fletcher was all in.
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Alright, let's do it.
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Yeah, the problem is I don't know how.
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I don't have- don't look at me.
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With that uninspiring kickoff, we decided to just try some items we had lying around Crunch Laps.
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Far than I was expecting.
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Our first thought was grating styrofoam,
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but it turns out that's not only dangerous Ow!
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Just grated my finger
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But the static electricity buildup means it would rather stick to you than the ground Next up was using
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that water absorbing polymer you find in diapers
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But it turns out it's not very good for making snowballs It's way too slippery I'm good And on top of that,
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the amount of diapers required would be half a metric,
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but ton Which all left us with only one option
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Hold this Here we go! dumping 80,000 pounds of actual ice into a wood chute.
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Oh!
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I think it's gonna work!
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God!
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Once I came in to check things out,
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Alright, Fletch, what do you think?
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It didn't take long for Fletcher to let the power go to his head.
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Oh!
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Oh!
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I can't!
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Ah!
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Mark?
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You okay?
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Yeah, I'm fine.
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But this is gonna work great.
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Now that we had a solution in hand,
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I needed Fletcher's help on one last finishing touch.
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Oh, it was Nathan.
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Just kidding.
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After which, he abruptly told me he had to go.
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See you later.
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What?
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Man, this is gonna take a while.
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A lot longer now with one person!
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We're making snow!
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Let's go!
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And four hours and 40 tons of ice later,
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all that was left was to nail the surprise.
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Eight months of planning and work comes down to this moment.
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There he is.
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Oh gosh, my heart's about to beat out of my chest.
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We had Ethan's parents tell him he was auditioning for a toy commercial
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so he wouldn't suspect anything we laid eyes on a balloon-laden indoor roller coaster resting on two feet of freshly packed snow.
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That's cold.
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But I had to act fast because Ethan was catching on quick.
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Why is there a crunch lounge?
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Hey Ethan, what's going on pal?
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No, no, no. I thought you might need a coat.
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Wait, I'm so confused.
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What is your favorite cartoon?
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Phineas and Fur probably?
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Have you seen the episode where they make the rocket-powered swing?
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Yeah.
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Have you seen the episode where they send the roller coaster to space?
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Yeah.
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Have you seen the episode Ethan called Swinter where they turned inside into winter?
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Yeah.
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This is Phineas and Ferb in real life.
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We're throwing you a birthday party today.
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Wha- N- H- You know what a banger party needs Ethan?
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A birthday cake?
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It does need a cake.
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Let's work on a cake.
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You know what it also needs though?
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I feel like we should have more people here.
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Do you have friends you'd want to invite?
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Yeah.
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And that was the cue to send in All of Ethan's best friends And also his loudest friends.
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Including his little sister, which meant that he had an important decision to make.
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Ethan, is it okay if they all hang out with us?
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Ethan, you better say yes.
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Five bucks.
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I have 77 cents!
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Okay, that goes for everyone.
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Yeah!
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Generous.
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When do you guys say we start with the rocket switch?
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Yeah!
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But before we kick off the party,
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I realize you're probably looking for a good way to spend your 104 days of summer vacation.
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We'll look no further, because it's here,
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and it's called Camp Crunch Labs.
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Camp Crunch Labs is your key to fighting that summer brain trip with an eight-week virtual space-themed summer camp
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that hops to each of the planets in our solar system,
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featuring weekly videos with mega experiments that I do,
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and super challenges that you do.
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And the best of these weekly challenge submissions earns one of these bad boys a platinum ticket,
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Giving you the chance to join me on my favorite planet
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for the biggest mega experiment of them all in the final episode of the summer.
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Oi!
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Oi!
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Oi!
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Oi!
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On top of that, usually the Crunch Labs build boxes will build a super fun toy together.
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Learning all the juicy physics how they work comes once a month.
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But to coincide with Space Cam Crunch Labs' weekly challenges and videos all summer long,
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we'll ship them to you every week.
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Let's go.
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So if you want an eight week summer camp where you can travel the cosmos while learning to think like an engineer,
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With an absolute zero percent chance of bug bites and poison ivy,
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head to campcrushlabs.com to reserve one of the limited spots,
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and I'll see you in camp.
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Back at the party, it was time to see
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if I'd actually accomplished turning three Phineas and Ferb cartoon marvels into real life.
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Starting first with the rocket swing.
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You guys want to see it go?
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What?
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What did that happen?
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You might notice we swapped the rockets out for a pair of 24 volt electric turbines.
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This provided two advantages.
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First, we learned from testing that big rockets make a lot of smoke.
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Hold your breath!
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Which is not ideal for your lungs or your smoke alarm.
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And second, if you pulse the turbines at the exact natural frequency of the swing I take my lungs!
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Which is exactly what you naturally do when you pump your legs on a swing,
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by the way.
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Well, then you can add more and more energy to the swing Oh no!
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Until it has enough Come on,
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come on, come on, come on!
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To clear the bar.
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Yeah!
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Come on, come on!
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That's real!
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And even with their modifications,
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a thought suddenly occurred to me.
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That seems really dangerous!
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My protest fell on deaf ears.
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Safety is for losers!
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Yeah!
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Seeing as he was such a tough guy all of a sudden,
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I decided to use Ethan to get a bass line.
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Here we go, Ethan, here we go!
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To see how high you could swing if you just had to rely on your boring old muscles.
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Let's go!
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Wow!
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And the answer was pretty much horizontal.
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Ethan, you're kinda going high.
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High shmai.
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Now it was my turn to see what would happen if you added 14,000 RPMs of propulsion.
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Okay, are you guys ready?
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Yeah!
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Of course, the number one rule
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when demoing a potentially disastrous engineering build at a kid's birthday is that you definitely want to do it before you...
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I've never done this before!
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What do you mean you've never done this before?
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This is my first test!
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Has it been tested?
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No!
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Uh oh.
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No!
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Yeah!
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Yeah!
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Yeah!
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Yeah!
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Yeah!
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And the only feeling better than pulling off a build like this,
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is how you feel when you finally get off a build like this.
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Oh my gosh!
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That looks so nauseating!
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Ethan, you're next!
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roller coaster finale, I decided we should take a little swinter break,
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starting with some snow cones,
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You're ready for a snowball fight!
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Yeah!
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And some snowballs.
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However unfortunately for them, certain habits Yeah!
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Are hard to kick.
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Oh!
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Headshot!
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Who's next?
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Oh, that was- Oh, that was- Ha ha ha!
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Eat him!
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And then suddenly and very undeservedly I might add I wasn't over my head.
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Wait, why is everyone aiming at me?
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Okay, truth?
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Who wants to go sledding?
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Go Henry!
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High five!
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Ethan was really encouraging with his friends.
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He's out late!
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That is when he wasn't attacking.
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Hey!
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Go Bam!
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After we had our filled with snowballs and sledding,
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it was time to test out the final and most audacious Phineas and Ferb in real life engineering bill.
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Now up the stakes, Ethan reminded me what their coaster was actually like in the show.
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There was like snakes and like a car wash and a bunch of stuff.
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So if this is really Phineas and Ferb right here- He'd be a triangle.
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Oh yeah, if this was Phineas and Ferb, he'd be a triangle.
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Fair.
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Fair.
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But I wasn't going to make Ethan ride solo,
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so I had no choice but to buckle up.
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I'm nervous!
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Yes!
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Ethan, are you nervous?
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Three!
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What?
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Two!
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Oh gosh!
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One!
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Go!
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And while the snakes were fake, the mud was real.
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Oh no!
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Oh no!
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Oh my!
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The final step, of course,
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was to rinse off in Science Bob's 20 mile an hour car wash...
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Oh, no!
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Goodbye!
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Oh, no!
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We're pulling to a halt in front of a massive blow dryer so we could dry off.
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Nice and clean?
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Yeah.
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Yes.
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You won't have to shower tonight at least.
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I doubt that, but um...
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So now that all three of our inventions were tested and Ethan approved...
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Thank you.
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So it's time to give Ethan a well-deserved 15 second party montage.
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Ethan, I also have a confession.
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I didn't pull this off on my own,
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I had a little help.
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What do you mean?
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Hey Phineas!
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Look what we did!
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Whoa!
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You know, for not relying on cartoon physics, that looks so fun!
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I'm happy it all worked out for you.
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Now for the elephant toothpaste experiment!
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Whoa, make sure Ferb isn't too close!
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Whoops.
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Wow, it looks like you got a lot of cleanup on your hand.
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You want us to help?
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Actually, our cleanup usually takes care of itself.
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See?
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No muss, no fuss.
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Bye, Mark.
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Sorry Ethan, but that trick will not work in real life.
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Am I cleaning up?
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Grab a shovel and let's clean this up.
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Oh my legs!
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Oh my god.
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Now that Ethan's been given the best birthday ever,
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why not join us for the best summer ever with Space Camp Crunchlots.
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The 8 week virtual space themed summer camp designed to help fight that summer brain drain.
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So check out campcrunchlots.com with your parents and reserve one of the limited spots,
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and I'll see you at camp.
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Thank you.
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Informazioni su Questa Lezione
In questa lezione, avrai l'opportunità di migliorare la tua pronuncia inglese mentre esplori un ambiente creativo e divertente attraverso il racconto di una festa di compleanno epica. Ascolterai frasi interessanti e divertenti, scoprendo come implementare idee innovative, come una giostra alimentata da razzi. Questa lezione è progettata per offrirti non solo la possibilità di apprendere nuovi vocaboli, ma anche di esercitarti nella pratica di conversazione in inglese in un contesto coinvolgente.
Vocabolario Chiave & Frasi
- jet-powered tire swing - altalena alimentata a reazione
- custom-built roller coaster - montagna russa costruita su misura
- indoor sledding hill - collina per slittini al coperto
- crash test dummy - manichino per test di collisione
- ignition wire - filo di accensione
- rocket-powered - alimentato a razzo
- high-speed camera - macchina fotografica ad alta velocità
- cartoon physics - fisica dei cartoni animati
Consigli per la Pratica
Per sfruttare al meglio questa lezione, puoi utilizzare il metodo del shadowing in inglese. Ascolta attentamente la pronuncia e l'intonazione del narratore nel video e tenta di ripeterli immediatamente dopo. Questo ti aiuterà a migliorare la tua pratica di conversazione in inglese e a rendere più naturale il tuo modo di parlare.
Quando affronti frasi più lunghe o complesse, inizia a spezzarle in parti più piccole. Esegui il shadow speech focalizzandoti su ogni parola, prestando attenzione ai suoni e alla fluidità. L’uso di una shadowing site potrebbe facilitare il tuo esercizio, ma anche semplicemente riascoltare il video diverse volte può rivelarsi utile. Ricorda di praticare regolarmente e di sfidarti a ripetere a velocità sempre maggiore, in modo da incrementare la tua scioltezza e sicurezza nella pronuncia.
Cos'è la tecnica dello Shadowing?
Shadowing è una tecnica di apprendimento delle lingue supportata da studi scientifici, originariamente sviluppata per la formazione dei traduttori professionisti e resa popolare dal poliglotta Dr. Alexander Arguelles. Il metodo è semplice ma potente: ascolti un audio in inglese di madrelingua e lo ripeti immediatamente ad alta voce — come un'ombra che segue il parlante con un ritardo di solo 1–2 secondi. A differenza dell'ascolto passivo o degli esercizi di grammatica, lo shadowing costringe il tuo cervello e i muscoli della bocca a elaborare e riprodurre simultaneamente i modelli di discorso reale. La ricerca dimostra che migliora significativamente la precisione della pronuncia, l'intonazione, il ritmo, il discorso connesso, la comprensione dell'ascolto e la fluidità del parlato — rendendolo uno dei metodi più efficaci per la preparazione alla prova di speaking dell'IELTS e per la comunicazione reale in inglese.
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