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Hey guys,

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Welcome to Day 33 of 100 Days of Code. It's Angela here

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and today we're going to be learning about application programming interfaces,

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also known as APIs. What are we going to use it for? Well,

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we're going to learn this technology so that we're able to create an ISS

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tracker.

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So this is the international space station and it floats high above in the sky

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and it circles earth many, many times a day.

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Here's a video that's taken from the ISS and you can see how glorious earth

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looks in the eyes of the ISS.

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And what we're going to try to do is we're going to try and track where the ISS

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is currently at in the sky. And at the time point

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when the ISS is in the night sky, right above where we are,

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then we're going to send ourselves an email

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telling us to look up and spot the fast-moving ISS.

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Once you are ready, head over to the next lesson and we'll get started learning

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about APIs.