how does a camera actually capture a moment in time?

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i just don’t get how it can keep a moment of time and save it forever

In: Technology

3 Answers

Anonymous 0 Comments

A camera measures the light arriving in some time window (typically a small fraction of a second). Today that is typically stored digitally. That measurement can be displayed on a computer screen, or printed out. Analog cameras have chemicals that get changed when light hits them.

Anonymous 0 Comments

A camera only copies blobs of color to a storage medium (digital or film etc). It’s your brain that’s interpreting that pattern of color blobs as a moment in time, ie triggering a memory or an imagination.

Anonymous 0 Comments

It doesn’t “keep a moment of time”, it records light as an electrical signal which is digitised like any other data. Or in the case of film, chemicals in the film react to the light.