Yesterday, we’ve shown you why people have blind spots and how to see the blood vessels inside your eyes, so today, we thought you’d appreciate this follow up video on how you can see your own white blood cells just by looking at the sky… (but not directly at the sun, please)
ooh, so when I'm staring at the sky and randomly see little sparks or specks of light flying around that's what it is?
That is freekin' cool! Took me a little while, but I was able to see very distinct capillary branches.