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The ruler is thin by the edges so that the markings can be easily compared with whatever is being measured. It is thick in the centre so that it does not snap too easily.

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15y ago

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What was the main ruler of China in the middle ages?

the centimetre ruler


What describes a lens?

thicker at the edges that in the middle


Convex lenses are in the middle and at the edges?

thicker, thinner


What describes a Concave lens?

thicker at the edges that in the middle


Is the middle layer thicker in veins or arteries?

arteries.


What is thinner in the middle and thicker at the edges?

A slice of pizza.


Convex lens is thicker than?

Concave lens. Concave lenses are thinner in the middle and thicker at the edges, causing light rays to diverge. Convex lenses are thicker in the middle and thinner at the edges, causing light rays to converge.


What is a lens that is thicker at the edges than the middle?

Concave. The opposite- thick in middle, thin at edges- is convex.


What's the name of a curved lens that is thicker in the middle?

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Why are the pancakes usually thicker in the middle than on the edges?

Because when you pour batter into the pan, the batter diffuses, or spreads out. While cooking, it thins and the edges are thinnest because diffusion isn't done finding a balance. The middle is still thicker because of the process of diffusion isn't done, so it will be thicker in middle naturally. Hope this helps! :-)


What lens is thicker in the center?

A convex lens is thicker in the center. This type of lens bulges outward in the center and is thicker at the middle than at the edges. Concave lenses, on the other hand, are thinner in the center.


What is a lens that refracts light toward a point and are thicker in middle?

They are convex lenses.