Funfact: sperm contains protamin, the antidote for heparin which is used for anti coagulatory properties in medicine. During cardio vascular surgery you get a shit ton of heparin so they can perform the open heart surgery (so the heart lung machine doesn’t get clogged). After the surgery you get protamin so you do not bleed to death. This protamin is often sourced from salmon sperm. If you have strong fish allergies you could theoretically react on it but it’s not very likely.
Fun fact the best invisible ink has traditionally been semen. British intelligence switched to other stuff after their tabloids started making fun of them for it at one point, 20th century sometime idk. Lemon juice sort of works too, put a letter on a radiator and the invisible ink becomes visible.
Funfact: sperm contains protamin, the antidote for heparin which is used for anti coagulatory properties in medicine. During cardio vascular surgery you get a shit ton of heparin so they can perform the open heart surgery (so the heart lung machine doesn’t get clogged). After the surgery you get protamin so you do not bleed to death. This protamin is often sourced from salmon sperm. If you have strong fish allergies you could theoretically react on it but it’s not very likely.
Fun fact the best invisible ink has traditionally been semen. British intelligence switched to other stuff after their tabloids started making fun of them for it at one point, 20th century sometime idk. Lemon juice sort of works too, put a letter on a radiator and the invisible ink becomes visible.
I would like to know how they found it out in the first place
Teens trying to burn their overused socks, which briefly revealed phantom hieroglyphics
Genetically signed correspondence, neat!