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25 aug 2021

Sometimes I wonder if everyone’s worked out how things work. Most probably have. For those who haven’t and want a simple explanation, here are some:

drinks carton

How does a cardboard screw top drinks carton open?

How does a spoked wheel work?

spokedwheel pyrometer

How did an early pyrometer work?

three point linkage

How does a Ferguson three -point linkage work?

strength of shapes

How does shape affect strength?


How does corrosion work?

see things

How do we see things that aren’t there?

How to understand science - selected topics

science dna1

Don’t Not Ask about DNA


How does steel tempering work?

How is a throw-away pepper grinder constructed?

grinder quartz

Time and the quartz clock


The harp