Neither one of which bring him shame. So he takes the bottle curiously from Lance even as he chuckles about 'looking good for Black' and takes off the cap so he can look inside and then smell it before replacing the lid. He can't read the writing on the label but the four eyed face on the front looks happy about things at least. Absent, some old vestige of his time as a guest instructor at the Garrison kicks in and he answers:]
pH is how we measure something's acidic and alkaline levels. 0 to 14, 7 being true neutral. Anything above 7 is alkaline, anything below is acidic. Human skin is usually about a 5.5, so slightly acidic. That keeps in moisture and helps kill off germs. Human blood is about a 7.4. Alkaline. Water is a 7. [He hands the bottle back to Lance with a smile.] So as long as alien pH levels are close to our own we should be fine. Too much alkaline and it would just give us really dry faces.
no subject
And he's also an absolute dork.
Neither one of which bring him shame. So he takes the bottle curiously from Lance even as he chuckles about 'looking good for Black' and takes off the cap so he can look inside and then smell it before replacing the lid. He can't read the writing on the label but the four eyed face on the front looks happy about things at least. Absent, some old vestige of his time as a guest instructor at the Garrison kicks in and he answers:]
pH is how we measure something's acidic and alkaline levels. 0 to 14, 7 being true neutral. Anything above 7 is alkaline, anything below is acidic. Human skin is usually about a 5.5, so slightly acidic. That keeps in moisture and helps kill off germs. Human blood is about a 7.4. Alkaline. Water is a 7. [He hands the bottle back to Lance with a smile.] So as long as alien pH levels are close to our own we should be fine. Too much alkaline and it would just give us really dry faces.