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Are you ready for some research?

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I love doing research with Dr. D.

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Did you bring the items I requested?

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Of course.

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I brought some old tennis shoes and Katherine brought some soccer cones.

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Great.

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I wanted to meet you here at the Hubba Hubba Highway because the speed of its current is

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a lot like the Gulf Stream.

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It looks like it's moving pretty fast.

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Does the Gulf Stream move that fast?

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Let's find out.

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We've got a stopwatch and a measuring tape that can find its velocity or speed.

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I know the formula for velocity.

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It's distance divided by time.

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So if we measure the distance between two points and then time a floating object between

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them, then we can find the velocity.

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Very good.

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We need to do five trials.

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You should always do more than one trial in an experiment and then find the average.

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Excellent.

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Next, we need to decide how far apart the two points should be and mark the distance

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with the cones.

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How about putting them ten meters apart?

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Fine.

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What object should we time?

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Oh, I get it.

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That's why we brought these tennis shoes.

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That's correct.

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Let's get started.

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Let's see.

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Our five trials averaged 8.65 seconds.

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So if we use the formula and divide 10 by 8.65, that means that the velocity is about

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1.2 meters per second.

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The Gulf Stream's velocity averages between about one and one and a half meters per second.

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Wow.

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Both the Hubba Hubba Highway and the Gulf Stream move really fast.

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Now it's time for you to experience the power of the Gulf Stream by swimming against

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the current.

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This should be easy.

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Let's see which one of you is a stronger swimmer.

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I predict no contest.

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That's right.

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I'll be the champ.

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Wow.

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That was a lot harder than I expected.

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I can certainly see why it took two weeks longer to get mail in colonial days when the

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ships were sailing against the current.

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Okay.

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There's still more research to do.

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Let's float around the Hubba Hubba Highway and see if we all float at the same speed.

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That sounds like my kind of research.