The CSI-style tool will let you identify body fluids around your home and office. Black lights or UV lights are used by crime scene investigators to identify body fluids - including semen, sweat, saliva and urine. Semen happens to glow the brightest because of its particular mix of chemicals. This is because bodily fluids fluoresce - that means they absorb ultraviolet light and re-emit it as visible light. To create the semen-detecting tool, you need to take your phone and cover the flash with a small piece of sticky tape.
Sunshine of Your Love
Why does semen glow in the dark?
Sperm is the male reproductive cell. In the types of sexual reproduction known as anisogamy and its subtype oogamy , there is a marked difference in the size of the gametes with the smaller one being termed the "male" or sperm cell. A uniflagellar sperm cell that is motile is referred to as a spermatozoon , whereas a non-motile sperm cell is referred to as a spermatium. Sperm cells cannot divide and have a limited life span, but after fusion with egg cells during fertilization, a new organism begins developing, starting as a totipotent zygote. The human sperm cell is haploid , so that its 23 chromosomes can join the 23 chromosomes of the female egg to form a diploid cell.
The Semen spy CSI deluxe infidelity forensic kit with UV lamp