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No. Its brightness is below the limit of sensitivity for the unaided human eye.
people
As far as an UNAIDED human, no it is not possible. By unaided - nothing other than their writing utensil, hand and the surface being drawn on with no guide, tools, marks or the like.
By definition, a microorganism cannot be seen by the unaided human eye.
nucleus
Pass a thread through the eye of a needle unaided from the opposite side of the needle towards the human eye; while looking through the eye of the needle.
Any organism which is too small to be seen with the unaided human eye is by definition a microorganism.
Infrared waves are a frequency of the spectrum that is undetectable by the unaided human eye.
well there is a human society, isn't there?
depends on the strength of your lens
Magnitude. First magnitude descibes many bright stars, and a span of five magnitudes represents a difference of a hundred times in the star's brightness. The dimmest stars seen by a perfect human eye in perfect conditions is 6th magnitude.
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