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Monday Math 3

General second order differential equation:

With independent variable t and unknown function y(t), our general form is

If this is nonlinear, there is no single general method of solving; however, there are two special sub-cases that allow reduction to first order equations (which in turn may or may not be solvable).

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Robotic Exoskeleton for Japanese Farmers

As indicated in this article, a team at the Tokyo University of Agriculture and Technology is developing a powered robot suit for use by agricultural workers. From the article:
"The new power assist robot suit was specifically designed to multiply the productivity of workers using it, while minimizing the strain on their waist, hips, and arms. The suit includes 8 motors on its rigid ABS resin frame structure and weighs 18 kg (just under 40 pounds), yet carries most of its own weight and places a minimum load on the operator."
They expect the suit to be in use by 2012. This is very cool.
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A Must Read

In David Frum's Diary on NRO, Ezra Levant's opening statement to the Alberta Human Rights Commission tribunal investigating his decision to reprint the Danish Muhammad cartoons, in its entirety, can be read here. Read it now! Especially if you believe in freedom of speech.
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Rebranding

There's been some buzz about this Enova™ oil, a brand of "diacylglycerol oil", an oil blend with more than 80% diacylglycerol lipids. However, one can easily find that "diacylglycerol" is the more technical name for what have traditionally been called diglycerides, commonly used as a food additive (along with monoglycerides), usually serving as an emulsifier. Amazing how new names and fancy terminology can make a "new" popular product from something used for quite some time already.
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    Raymond Scott-"Powerhouse (Full version)"
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