Jon and Mel dive into the question of the day: "When I open the weather app on my phone, how do today's weather get my screen, and where did it come from?

Timestamps:

0:00 - Intro

0:18 - Question of the day

1:48 - Defining the endpoints? Client and Server

2:43 - Mental picture for information traveling across internet: Skateboard ramp.  Swimming pool

5:00 - Defining some terms: client and server

5:36 - Defining request and response 

6:28 - Everything is binary

7:53 - Application Layer

8:55 - Physical layer 

10:33 - Defining a 'session’

11:00 - Transport layer. TCP

12:00 - Network layer. IP.

12:44 - Each layer is distinct and independent

14:05 - What type of requests can I make?

16:55 - Looking at the POST and GET requests

18:00 - Packets

20:45 - TCP & IP roles 

21:40 - Each device has its own IP address 

22:40 - Review of the path of a request from client to server

23:40 - Short hops along the path

25:30 - More about packets and network layers

26:30 - Encapsulation

29:00 - Terms for the data at different network layers

29:45 - Real-time routing

31:20 - Internet travel is like note passing in class