Kristjan Salev
Why is the jam jar lid hard to open?
You have surely noticed that it can sometimes be extremely difficult when open a jam jar with a screw-on lid on it (even though the jar...
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There are infinite devices and gadgets in the world that make our lives easier or a little more fun. Some of them can be very complicated, some very simple. Each one of them has to tell its own story. In this blog, we'll examine how different devices and gadgets work and what scientific principles they hide.
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