Tampubolon seems enthralled by those crocodile eyes: close-ups show them flicking open like the shutter of a camera lens and night scenes gleam with dozens of eyes watching in the dark.

So if the non-dominant eye is fitted with a near-powered lens to correct our near vision, our distance vision will not be disturbed that much. Monovision involves wearing a contact lens on the ...

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In earliest times, circuits could be broken only by separation of contacts in air followed by drawing the resulting electric arc out to such a length that it can no longer be maintained. This means of ...