It's Undeniable Friday! Every Friday, in addition to an odd little factoid, UndeniableFacts.com gives you a fun puzzle, illusion, or activity to enjoy and share.Today: How to make magnetic water!Now, I know what you're thinking: "Dan, water isn't made of metal!" Well, you're right, but I'll tell you what is made of metal - iron. What I'm getting at is that if you could find a way to get iron into some water, we'd be in business.Enter our friend, Spinach. As it turns out, spinach's composition is as much as 27% iron or more. But it's all locked up in the stubbornly tenacious cellular structure of the spinach leaf. How will we extract it into our water? The same way our bodies do: Vitamin C, in the form of lime juice.So here's how to do it. First, get a glass and put about one half cup of water in it. Grab four limes and squeeze the juice into the glass. Next, get about three sizable leaves of spinach and submerge them in the water. Place the glass in your refrigerator (otherwise the water will turn green), and leave overnight. The next day, carefully fish out the spinach leaves, get a powerful magnet, and go to town!

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