this post was submitted on 08 Sep 2023
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For me it is the fact that our blood contains iron. I earlier used to believe the word stood for some 'organic element' since I couldn't accept we had metal flowing through our supposed carbon-based bodies, till I realized that is where the taste and smell of blood comes from.

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[โ€“] csolisr@communities.azkware.net 19 points 1 year ago (11 children)

The fact that things are able to float, despite of gravity pulling all objects towards the big mass of Earth. You would think that the push of gravity should be more than enough to overcome the slight fluid displacement that allows balloons and boats to push away from the Earth's surface.

Gravity is pretty weak, all things considered. A tiny magnet can easily overcome the entire Earth's gravity on a small metal object.

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