# Woah!

## Fermi problems:

What is the volume of air that I breathe in one day?

It takes about 10 breaths to blow up a balloon the size of a two-liter bottle. So, that means I breathe about one liter of air for every five breaths. I breathe about 10 times every minute, so I breathe about two liters of air every minute. This means that in an hour, I breathe about 120 liters of air. So each day, I breathe about 2,880 liters of air.

https://www.dropbox.com/s/s9k4ixnt8wxt708/Fermi-Questions-Lesson-Plan.pdf?dl=0

A group of people in a room with laptops Description automatically generated

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## What makes a video viral?

https://fbe.unimelb.edu.au/newsroom/the-science-behind-viral-videos

https://hbr.org/2012/03/the-new-science-of-viral-ads

## Newton’s 1st:

https://twitter.com/i/status/1339310905952178176

https://twitter.com/i/status/1339310905952178176

## Andreas Wahl:

Image

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https://www.dropbox.com/s/rmk2bz8j71g7d85/PXL_20201114_093945046.mp4?dl=0

## Rattlebacks

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dropping slinky

## 2 Chain fountain

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Several chains being pulled by a chain Description automatically generated with medium confidence

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## Magnus effect!

Magnus effect - Wikipedia

The Magnus Effect: How to Fly (Or Sail!) With Spinning Cylinders | by Alex Beyman | Predict | Medium

File:Curveball-magnus-effect.jpg - Wikimedia Commons

Flying Pen!

## A great channel:

https://www.youtube.com/channel/UCNk3CeLpCA0qIZsuzGl09cw