How Does A Vacuum Cleaner Work? A Video

I remember a scary assignment we got in 9th grade English. We had to give an oral report on HOW IT WORKS. We could choose any machine or household appliance but we could NOT use pictures or other visual aids. Seems archaic now. So we had to get over being nervous about talking in front of strange "others" (9th grade classmates!). Plus we had to describe the item clearly and then explain how it functioned. GROAN. I remember that day. We all dreaded it. I "did" a pressure cooker! How Lame!

But look at what this gal did for her assignment more recently. She did not have to stand in front of the class and tell someone entirely in words. She made a video model to show how a vacuum cleaner works. Simple? Yes, but it tells the basic tale.

If you were to ask me? I would say it is like having a tiny tornado controlled inside the machine that sucks everything into its vortex and catches it inside the bag. Hm. What would YOU Say? eh?