How to Make a Vacuum Cleaner using bottle - Easy Wayodyprabowo (58)in #steemit • 8 years ago https://www.youtube.com/watch?v=jkQsBD5WtDo source : youtube
I love this, because it just shows you how we're willing to spend so much money on everyday things but this takes you down to the core to understand how these things can be made.
yap, thats right, i agree with you