Da: liu xing, Nanjing, JS, Cina
paperback. Condizione: New. Language:Chinese.Pages Number: 193 Publisher: Hebei Science and Technology Press Pub. Date :2003-06. The reason why our eyes can see something. because it is the light emitted or reflected changes in our brain image signal. However. even if you have the most sensitive eyes. can not identify the scale is less than the spacing of retinal photoreceptor cells on things. Fortunately. scientists have prepared for our detection tools like the microscope. using these tools. we can see these small thi. Codice articolo K91036
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