How do you see in colour? And how can your eyes see in the dark? Time for Dr Xand to become Night Vision Man! Plus, in an Ouch! first, we see a camera go inside Dr Chris’ lungs! Show more
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How do you see in colour? And how can your eyes see in the dark? Time for Dr Xand to become Night Vision Man! Plus, in an Ouch! first, we see a camera go inside Dr Chris’ lungs! Show more