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Daily Archives: Mon Jan 22 2007
Radio Waves, Infra Red and Sound
On a number of occasions, I have tried to explain to Big about things like radio waves, radiant heat and so on. Me: “It is like light but you can’t see it.” Big (blank, puzzled, Daddy is taking the **** … Continue reading
How Big?
Big asked me, “how big is a virus?”. I found the answer here at Cells Alive, represented rather better than I could have done on my own, I fancy.
