The Ums And Aahs (Fillers)

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The Ums And Aahs (Fillers)

1. How engineers test bridges to work out the load
   limit
2. The patterns snow flakes make as they fall down
3. How kettles know to turn themselves off when the
   water boils
4. Things Inuits do in igloos during snowstorms
5. What to do if you accidentally step in a
   crocodile nest
6. How designers work out how big to make seats in
   sports stadiums