Before the discovery in the 1920s of quantum mechanics—laws that explain the way the world works on the very small scale of atoms and electrons—the fact that bleach and peroxide glow when mixed would have seemed like just another chemical reaction that gives off light, like fire or fireflies. But it’s actually a glimpse into the impossible.
Most people's knowledge of geckos doesn't extend much beyond the Cockney-tongued lizard hawking car insurance on TV. I wont go into the implausibility of these ads, the least of which being that a gecko wouldnt have a chance to survive Britains cold climate long enough to pick up an accent. They do, however, thrive abundantly in warm, tropical climates, and in total compose nearly 15% of all reptile species on Earth. If you're fortunate enough to live in gecko country, you've probably seen them climbing and crawling over just about every surface imaginable, including the ceiling.
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