It is funny how often we rely on pretty toxic materials for some of the most minor things. We put…
Continue reading →![Penny battery](https://i0.wp.com/blog.dxlogan.com/wp-content/uploads/2014/01/penny_battery_LED.jpg?fit=400%2C294)
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It is funny how often we rely on pretty toxic materials for some of the most minor things. We put…
Continue reading →