Tuesday, May 22, 2007

Prosthetic arm tips

After watching these videos, a question comes to mind: This is 100-year-old technology (cables and rubber bands) - Can we come up with something better? Or is this one of those things, like steering wheels, where we arrived at an optimal solution in terms of cost/reliability/functionality very quickly?

Thursday, May 17, 2007

Kassam (Qassam) rockets

Kassam rockets have been landing in Israel this week. From a technical standpoint, these rockets are interesting because they are simply oversized "candy rockets" that model rocket enthusiasts launch all the time. To learn more about candy rockets, read this article in PopSci:

Rocket food

as well as this article:

Recrystallized Candy rocket propellant

This article provides more detail on the actual construction of Kassam rockets:

The Growing Threat of the Kassam Unguided Rockets

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