Defining a Problem: Crash Course Kids #18.1 - By Crash Course Kids
Transcript
| 00:09 | problems . We've all got them , you me T | |
| 00:12 | . Swift Tony Stark . Some problems like forgetting to | |
| 00:15 | do your homework might seem like a pretty big deal | |
| 00:17 | to you , but when you compare them to other | |
| 00:18 | bigger problems , they're really not so bad . Like | |
| 00:21 | what kind of bigger problems ? Well the kinds of | |
| 00:23 | problems engineers face , like how to safely fly hundreds | |
| 00:26 | of people through the air in a small vehicle from | |
| 00:28 | one country to another , or how to make an | |
| 00:30 | eco friendly building in a seaside town that can withstand | |
| 00:33 | hurricane force winds or how to send a bunch of | |
| 00:35 | earthbound humans hurtling off into space and you know , | |
| 00:39 | get them back . That homework doesn't seem like such | |
| 00:41 | a big problem anymore , does it ? Okay to | |
| 00:43 | be clear , I'm not saying that you don't have | |
| 00:45 | to do your homework if you didn't , it would | |
| 00:47 | definitely be a problem . Just not as big as | |
| 00:49 | like having to invent a spaceship and that's the kind | |
| 00:52 | of stuff that engineers do . Engineers are people who | |
| 00:54 | want to know how and why things work . Not | |
| 00:56 | only that , they actually design and build things like | |
| 00:58 | machines , systems or structures to help solve specific problems | |
| 01:02 | . All engineers , whatever type they are , follow | |
| 01:04 | the same series of steps when trying to solve a | |
| 01:06 | problem . You'll remember these steps as the engineering process | |
| 01:10 | and the first step in that process is defining the | |
| 01:12 | problem . When an engineer identifies a problem here , | |
| 01:15 | she hopes to solve . But that first step isn't | |
| 01:17 | as simple as you think it is . So it's | |
| 01:19 | time for our big question , how does an engineer | |
| 01:22 | define a problem ? Let's come up with a fake | |
| 01:28 | problem to solve and we'll see what we wind up | |
| 01:30 | with , pretend you're on one side of a very | |
| 01:32 | big canyon and you need to get to the other | |
| 01:34 | side . So that's the problem you need to solve | |
| 01:36 | right how to cross this very big canyon sort of | |
| 01:39 | , but not exactly , we can do better if | |
| 01:41 | I was an engineer and found myself on one side | |
| 01:43 | of that huge canyon . Here's how we go about | |
| 01:45 | identifying the problem . I'd ask questions a lot of | |
| 01:48 | questions , all the questions . Mhm . I need | |
| 01:54 | to cross this very big canyon , but is that | |
| 01:57 | my actual problem ? Mm This canyon is very big | |
| 02:01 | and I need to get to the other side . | |
| 02:02 | I know I'll cross that bridge . Wait , is | |
| 02:05 | there a bridge ? Uh Yeah , there's no bridge | |
| 02:07 | . Okay , can I climb down one side of | |
| 02:09 | the canyon and then up the other side ? Uh | |
| 02:12 | definitely not way too deep . Plus there's a roaring | |
| 02:15 | river at the bottom , would have to figure out | |
| 02:17 | how to cross . So I can't cross the canyon | |
| 02:19 | by bridge , I can't climb down and up and | |
| 02:21 | I can't swim across it . What's something I can | |
| 02:23 | do that doesn't require a bridge climbing or swimming ? | |
| 02:26 | I know I need to find a way to fly | |
| 02:28 | across the canyon and that's my problem . More importantly | |
| 02:30 | , that's my solvable problem . How do I fly | |
| 02:33 | across this very big canyon ? It took a little | |
| 02:40 | bit of thinking and a whole lot of questions , | |
| 02:42 | but how can you fly across the canyon is an | |
| 02:44 | easier problem to address than the much less specific . | |
| 02:46 | I'm on one side of a big canyon and I | |
| 02:48 | want to get to the other side and I don't | |
| 02:50 | know how to get across it , which strictly speaking | |
| 02:52 | isn't a question , it's just complaining about a problem | |
| 02:54 | really loudly . So defining the problem in a solvable | |
| 02:57 | way is really key to being a good engineer . | |
| 02:59 | While that first step might seem pretty easy , make | |
| 03:02 | sure you treat it like the super important step that | |
| 03:04 | it is , because it sets the stage for all | |
| 03:06 | of the steps of the engineering process that follow . | |
| 03:08 | If you don't define a potentially solvable problem from the | |
| 03:11 | start , you might never well solve it . So | |
| 03:14 | , an engineer asks a lot of questions to define | |
| 03:16 | a problem as specifically as they can , and most | |
| 03:19 | importantly as something that can be solved . So how | |
| 03:22 | is engineers , Sabrina going to find a way to | |
| 03:23 | fly across that gorge ? You're gonna have to solve | |
| 03:26 | that problem by watching our next lesson . |
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