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Jerry Morrison
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“Lambda calculus is to biology what Newtonian calculus is to physics. It’s the math needed to model the subject.”

That's my interpretation of this quote:
“Computer science is to biology what calculus is to physics. It’s the natural mathematical technique that best maps the character of the subject.” -- Harold Morowitz

To model biology requires a Turing-complete language.

To model classical physics, we think of Newtonian calculus. But does that work for the physics of a switch, let alone the higher level behavior of digital logic and DNA-based machines?
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I hadn't looked at satellite view of SF in a while: Half of Sunset Reservoir is now covered with solar panels. The project tripled the city's supply of renewable energy.

https://www.google.com/maps/place/Sunset+Reservoir/@37.7450809,-122.4825907,242a,35y,348.45h,73.11t/data=!3m1!1e3!4m5!3m4!1s0x808f7d8742036c0d:0x1c4b738608b91041!8m2!3d37.7509039!4d-122.4834721
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The petition asking to President Obama to commute Chelsea Manning's sentence needs 24K signatures by December 14, 2016 to get a response from the White House.
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Do watch this 2 minute video about the electoral college as a constitutional safeguard against electing a President who is:
* unqualified, or
* a demagogue or charlatan, or
* under foreign influence.

http://www.hamiltonelectors.com/ #HamiltonElectors
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Former MVHS folks (and others), join me in sticking up for history teacher Mr. Navarro?
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My Generation [this is hilarious]:
Townshend reportedly wrote the song on a train... inspired by the Queen Mother who is alleged to have had Townshend's 1935 Packard hearse towed off a street in Belgravia because she was offended by the sight of it during her daily drive through the neighbourhood.

Townshend has also credited Mose Allison's "Young Man Blues" as the inspiration for the song, saying "Without Mose I wouldn't have written 'My Generation'."
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This transmission has low backlash, which is very useful in robotics. It's 90% efficient, vs. 50% for gears that rub. It promises to be significantly lower cost than a harmonic or similar strain wave gear system.

+Austin Schuh +Travis Schuh +Evan Morrison
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C/C++ programmers: A short poll about "Undefined Behavior" in the language definition.

Here's a summary, but feel free to skip it and if you're not prepared to evaluate the tradeoffs, just pick the first choice.

Summary: C and C++ compilers are allowed to assume various actions never happen: INT_MAX + 1, *NULL, integer >> 200, float *f = (float *)&integer, array[-1], ... The language declares them Undefined Behaviors, gives them no meaning, expects programmers to ensure they don't happen, and allows the compiler to optimize the code however it wants, including omitting parts that "can't happen" and falling through to code that reveals your private encryption key.

See http://blog.llvm.org/2011/05/what-every-c-programmer-should-know.html . Part 1 introduces UB and how it enables much optimization. Part 2 explains why UB is scary if performance is not your only goal, e.g. safety-critical or security-critical code. (The Heartbleed bug is a security-critical example. So is the Stagefright bug, and being "just a video decoder," maybe you didn't think of it as security-critical code.) Part 3 discusses how LLVM and Clang handle it and limited steps programmers can take.

When I programmed in C, I'd read C: A Reference Manual every couple years to (re)learn its pitfalls. But it does not mention this!
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votes visible to Public
Poll option image
It's a good tradeoff
I'd prefer defined behavior
I'd prefer undefined results
18%
What is "Undefined Behavior"?
18%
It's a good tradeoff
47%
I'd prefer defined behavior
18%
I'd prefer undefined results
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"Jeremy ended up wearing the same slacks as the groomsmen and a white shirt and then a vest the same color as the bridesmaid dresses. He didn’t quite fit on either side, but it was clear that he belonged. ...three months later at his brother’s wedding, he dressed exactly like the groomsmen."
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