Matthew's blog

Verizon in Canada? It's your own fault, Canadian telecoms

An open letter to Bell, Telus and Rogers

It seems that you folks, as Canadian telecom executives, are more than a little bit worried about Verizon's potential entry into the Canadian wireless market. (I saw the two-page spreads you've been running in the national dailies. They make you look terrified.)

You know what? I don't like Verizon either. And I certainly don't like the idea that our federal government might be rigging the rules to favour a big American player at your expense.

Dynamic Stability of a Monohull in a Beam Sea

The last post in our series on yacht stability looked at the static case. We saw that a yacht's response to heeling forces can be described by a stability curve, the shape of which tells us a lot about the boat's purpose, sailing characteristics and seaworthiness.

A real yacht in a real situation is of course far from being a static case. The static stability curve is one of our best tools for quantitatively comparing different designs, and I don't mean to denigrate its importance. In practice, though, dynamic factors can often have a bigger effect on the actual stability of the boat as it relates to safety, seaworthiness and comfort.

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