Your mom

Member since: Jun 3rd, 2009

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Download Squad	1 Comment
Urlesque	1 Comment

Recent Comments:

We Showed 'Troll Physics' Comics to a Physics Professor. Here's His Reaction. (Urlesque)

Sep 16th 2011 10:25PM The "professor" is totally wrong in his calculations. He states "To give a sense of how hard of a push that is, let's assume that the stupid troll thing in the wagon weighs 50 kg. To accelerate the wagon up to a speed of 1 m/s (around 3 feet per second... which is still pretty slow) would take (33 million * 50) seconds, which is 52 years. And that's assuming no friction!"

Wrong. If you do the math correctly, "professor", it comes out to 4.75 years. Way to earn that Ph.D.

In Frink notation ( http://futureboy.us/frinkdocs/ ) this is:

(1 m/s) / (100 W / c / (50 kg)) -> years

Wolfram Alpha is live and interesting, but not a Google killer (Download Squad)

Jun 3rd 2009 5:59AM "Wolfram Alpha will, however, be an immensely useful tool for academic and research applications - and a profitable one at that."

I don't think it will actually be useful for academic nor research purposes. Everything you can do with Wolfram Alpha is limited to a single-line text input. Any *real* academic or research problem, or any interesting problem ever invented requires more than one single calculation. You can't set your results into a variable and use it again, you can't write a function to perform the same calculation with differing inputs, you can't write loops to refine your values, and you can't do anything repeatably and unambiguously, as everything is parsed through a bunch of ad-hoc rules that are trying to guess what English sentences mean.

Even their research is bad. For most physical constants, you get fewer significant digits than is actually known, (like for the gravitational constant, which only gives you a lousy 3 digits,) so you really can't trust numbers. Anyone doing real research will go elsewhere to look up the *real* values, and calculate with a platform that doesn't truncate results to 4 decimal places. I can't imagine a situation where a researcher would be comfortable with their dumbed-down, truncated results, and not want to go to primary sources.

So you're saying they're going to be profitable? How? Explain their revenue model.

1. Curate trillions of pieces of data
2. Buy some of the most powerful supercomputers in the world
3. Incur huge expenses in maintaining data
4. ????
5. Profit!

Stephen Wolfram has said that he's not going to sell. Selling the thing while the hype is hot is the only way that he could apparently recoup even initial costs.

In short, it's not even as capable as the most trivial Turing machine.