Questions with the keyword 'hair'

Why is it that people from Ireland have blond hair? by Jelle to Alice, Koko, Paul, Silvia, Tim Comments: (No comments so far )
what are the three ways in which the root hairs are adapted to their function by 373pink23 to Alice, Koko, Paul, Silvia, Tim Comments: (No comments so far )

I am looking for a power source to be able to power a portable machine that is almost resembling the power usage of a 8
do electrons take part in a chain reaction of a radio active element such as americium-241 found in smoke detectors
If I am planning to create a machine to be able to lift a human being of about 130kg what would be and advisable source
how long did Avogadro’s took to come up with the formulae of 6.0×10^23
Why the zooming of aeroplane is heard back when it is moving.

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