Spare Parts Page #8

All right, keep going straight.

Two more meters.

You got it. Go, go, go, go, go, go!

- I can't.

- We must be caught.

It cannot be the tether.

Guys, try another angle.

Go back. Back 10 degrees.

Ten degrees left! Stay steady!

It looks like their thinner tether

is enabling them to get inside the cave!

Wow! We're in

unchartered territories now, folks.

All right, we're in now!

Take it easy!

All right, Lorenzo, pump.

The pump's working!

We got fluid and pressure!

All right, vamos, surface,

surface, come on!

Okay, 2.5 meters up and 30 degrees left!

Luis, stand by to grab the balloon.

Yeah!

All right!

Those are my boys! My boys!

Wow! With 75 points,

Carl Hayden has risen to fourth place

with 40 seconds left!

- We still have the bell, right?

- Yeah.

Luis, put Stinky back in the water!

Hurry!

Ladies and gentlemen,

Carl Hayden is going back for the bell.

Come on, Stinky, come on!

If they find that bell,

they'll be in the top three.

What are you doing?

Well, the monitors are dead.

We're not gonna stop

until the clock runs out.

Okay, grab the bell

and get it back on the hook.

- Come on, come on!

- Ten, nine...

The engines are at full power.

- Balance it out.

- Eight, seven...

Six, five, four...

Three...

Two, one!

Time's up! So, here are the standings

after the mission portion

of the competition.

MIT is in first place with 85 points!

Cornell and Virginia Tech

are tied for second with 80!

And in fourth place,

Carl Hayden Community with 75.

Guys, wait up!

Don't tell me you're upset.

We were so close.

You're in fourth place!

You beat more than 12 colleges.

You have a chance to take home a bronze

trophy if you do well in the orals.

He's right.

- Good evening, ma'am.

- Good evening.

Is Oscar Vazquez at home?

What is this about?

I'm here to talk to him

about the application he filed

to enlist in the United States Army.

Is he being reconsidered?

Well, that's what I'd like

to talk to him about.

He'll be so sorry he missed you.

He's away this weekend.

But he'll be back to this address?

I'm sorry,

did I make you think he lives here?

No, he and his mother

moved a couple months ago.

All right, guys. Time to caffeinate.

You know, before we hit the books too hard,

let's take a field trip.

So your mom doesn't think

you should come back at all, huh?

She just doesn't think it's safe.

I'm sorry, I just don't see

how this works out for any of us.

I mean, this is definitely not

how I thought my life would be.

There was a time not too long ago,

when I saw my whole life

stretched out before me.

And honestly, I...

I didn't see any good in it.

And you know what happened?

This pushy kid with a bad haircut

and a flyer walked into my club.

It's not so bad.

The haircut's not so bad.

For a guy like you?

A finish line always appears.

MIT!

Hey!

And pulse-width modulation, or PWM,

controls analog circuits

with digital outputs.

Right! The motors pulse and the speed

changes by the duration of the pulse.

Okay.

Luis, are you sure that you get this,

because we can go over it again.

Yeah, PWM, I'm good.

- Okay.

- All right, so...

Let's talk about weight,

mass and density.

- Okay.

- All right?

Mass is like a numerical measure

of its composition.

All right, guys! I'll be back.

Let me open to this chapter.

Gwen? Gwen!

They're fourth!

- What?

- Against college kids.

Yes! How are the boys?

What else did he say?

He said that they might get the bronze.

You should be there.

- They don't need me.

- No! No!

You need it!

Here! It's my frequent flyer account.

There's more than enough miles for two

adults and a kid to get to Santa Barbara.

No, no, Karen, I can't take this!

You've been saving up forever for this.

Just let me do this! Please!

Okay.

- Mr. Santillan?

- Hey!

Mr. Santillan.

Hi! How can I help you?

I'm Gwen Kolinsky.

I'm from Lorenzo's school.

We've had a number

of extremely brief conversations.

- At least the other guy, he brought tequila.

- Mr. Santillan, don't...

Do you even know

which state your son is in right now?

Tell us about the materials

you used to construct your ROV.

Our strain gauge

measured the pressure differential

across a flexible piece of material

whose resistance changed

with deflection.

A welded aluminum box frame,

which facilitated our modular design.

Well, we used PVC

'cause it's, like waterproof

and, like buoyant when you seal it off.

But we had to offset it

with pool noodles.

Pool noodles.

Every motor speed controller

and position relay

has a 20 amp auto reset circuit breaker.

We had five cameras, sir,

all connected to one video line,

and we could switch between the cameras

depending on what we needed to see.

The force is normal

to the surface of the object

and thus collinear with the radius

of curvature for the gripper at that point.

Great! Can you explain that

in layman's terms?

Why did you decide

to put the ROV electronics on board?

Due to the inefficiency of the motors.

They were 12 volts, 20 amps.

Why did you use inefficient motors?

'Cause we didn't have money

for the efficient ones.

Our budget was $12,540.

The ROV itself? $18,863.

- Just under eight, sir.

- 8,000?

No, sir! $800.

Really, $787.16.

But that doesn't include the tampons,

I don't know how much they cost.

We had a leak and tampons can, like,

absorb, you know, like 80 cc's of water.

What's the difference between

weight, mass and density?

Weight is how much the Earth pulls on you.

Gravity and everything.

Mass is how much stuff

you're made out of.

Like, I got a lot of mass,

but I'm not dense,

'cause density is

how close together all the stuff is.

No, sir. No outside help at all.

We had to use 22 gauge wire

for the tether.

Nope! Did it all ourselves.

I know that one.

And just one last thing.

Are you sure that your advisor

didn't do anything he wasn't supposed to?

No.

No?

Not really.

Not really, Luis?

It wasn't anything big,

I swear, it's just...

Just what?

Mr. Cameron donated $134.63

when we were short

at RAKS hardware store.

Thank you, that's all we need.

- No, but...

- That's all we need.

- How'd it go?

- Did you answer their questions?

You knew everything about the ROV

electronics and the control console?

Yeah.

I'm really proud of you, Luis.

Yeah, come here, big guy. Come on.

I pledge allegiance to the flag...

I was fully clothed!

I was pulled out of the bottom.

I was like,

I was gonna eat this, but if I go home,

I don't want my mom

to be cleaning up after me.

My mom always told me,

stop after the third piece.

Hey, and just so you know,

we did look great in your T-shirts.

I bet you did.

You remember everything you said?

About you and me, about not giving up?

You were right.

I have to face

whatever comes my way

and I can't hide anymore.

- I realize something else, too.

- What's that?

I love you.

Hey, that's your girl, right there,

from Cornell. Go talk to her.

- Come on.

- I'm waiting for the right time.

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