Fact or fiction?
Science is hard enough to understand, especially when there are so many “facts” floating around that aren’t actually true. You’ve probably heard more than half of the facts below. Here’s the real science behind them.
To help your brain grow even more, here are some ‘did you know’ facts that most people don’t know.
Myth: Water conducts electricity
While this is a science myth, it doesn’t mean you should bring your toaster in the bath with you. The reason you shouldn’t swim in a lightning storm doesn’t have to do with the water itself. Pure water is actually an insulator, which means it doesn’t conduct electricity. The danger comes from the minerals and chemicals in it called ions, which have an electric charge. While pure water is theoretically safe around electricity, it’s nearly impossible to find it in the real world because even distilled water has ions.
Myth: Blood is blue in your body
A widely shared myth is that blood is blue until it is exposed to air or replenishes its oxygen. Because veins are a greenish blue, that theory sounds reasonable enough. But the fact is, human blood looks the same in your body as outside: red. That hue is brighter when it’s oxygen-rich and darker when it needs that oxygen replenished, but it’s red all the same. The tissue covering your veins affects how the light is absorbed and scattered, which is why the blood circulating your body looks blue.