Boarding ladders for small boats

Getting into a boat from the water is HARD. The drag of the water makes it difficult to jump, and there's often no bottom to stand on. Even if you're in good physical condition, it's quite difficult to heave yourself more than about 15 to 30 cm (6" to 12") vertically out of the water. Take a look at a swimming pool: the copings are rarely more than 15 cm above the surface; in the best modern pools, they're level with it. Most people just can't jump any higher out of the water.

Let's look at Sunset Chaser for a moment:

Situational awareness and electronics overload

It's hard not to be impressed by the latest round of navigation electronics. This is 2010, after all, an era in which the average desktop computer has the computing power to calculate the airflow around a Space Shuttle during re-entry, and we can't tell the difference between live and CGI actors on the cinema screen. I'm not convinced, though, that all this computing power is a good thing to be throwing at navigation systems- at least, not in the ways we see in some of the current crop of nav systems.

Security at sea: encrypted email

Is there really such a thing as private communications anymore? By long-standing convention, radio traffic (except emergency and "all ships" calls) is supposed to be kept confidential, but these days, I wouldn't put too much faith in that. Public 802.11 wi-fi is also remarkably easy to hack, unless you're on one of the rare networks that use WPA2 encryption and rotate the access codes frequently.


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