This winter, I set out to create another optical effect: a lit candle that brightens as the eyes adjust to the dark. The effect– a demonstration comparing our two types of vision rather than a true illusion–works because our night vision sees color differently, allowing a camouflaged flame to emerge Continue reading →
To get close enough to a wild scorpion to take its photo is scary: the Arizona bark scorpion isn’t deadly, but it’s the most venomous scorpion in the United States, with a sting that causes severe pain.
It’s more terrifying for the scorpion, I’m guessing. It’s Halloween weekend in Phoenix, and I’m less than an inch away from its body, a 4x micro lens on my camera phone in one hand and a Scorpion Master black light flashlight in the other. I don’t kick or turn over any rocks, and I periodically sweep the light around my feet. Continue reading →
It’s hard not to notice crushed snails on sidewalks. But I usually didn’t notice the subtle slime trails that emerged out of front yard gardens, where and slugs and snails glided along glittering lines of slime crisscrossing the sidewalk. These lines mapping where the little creatures have traveled are visible only for a moment, when the sun happens to light them up at just the right angle.