1 00:00:01,580 --> 00:00:11,580 Hello, this is a wheelbarrow. It makes work easier and faster because it helps us to transport things. 2 00:00:11,580 --> 00:00:27,489 This machine uses the energy from people. This is how it works. 3 00:00:27,489 --> 00:01:02,100 Bye bye!