Rubik's Cube Now Solvable in 20 Moves 309
A few years ago we reported that it had been proven that Rubik's Cubes could be solved in 23 moves. Well now that number is
down to just 20. Proving it required 35 years of computer time donated by Google to get it done.
There is a good reason (Score:5, Interesting)
Re:Thank God! (Score:3, Interesting)
If you've got a computational problem that would help towards a cancer cure, have you asked Google to donate time for it?
No, he'd rather just complain. It's much easier to criticize researchers than to do the research yourself.
They're counting double moves as one (Score:2, Interesting)
Re:Enough! (Score:3, Interesting)
Unzipping a fly with one hand is a bit like tying shoes.
You’re an expert at tying shoes? Now go try tying someone else’s shoes.
Re:They're counting double moves as one (Score:1, Interesting)
Re:Enough! (Score:4, Interesting)
More and more women are going braless, or are wearing a sports bra. Gone are the days of the hooks.
Re:Thank God! (Score:4, Interesting)
There's a movement in health research now geared at extending what they call "healthspan" rather than just "lifespan" -- not "how long does this dude keep breathing", but "how long can we keep this dude active and happy"?
Turns out that many of the things that make people live longer also make their late years healthier. My grandfather is 94 and still travels the world with his girlfriend (a spry young 75, but he'll never see her again now that she's taken up Farmville). He got prostate cancer a few years ago (and colon cancer a few decades ago), received aggressive treatment for it, and is now cancer-free and healthy.
Old does not *have* to mean feeble. Sometimes it does, of course, and that's bad; this is why we should look at healthspan rather than lifespan.
Re:Thank God! (Score:3, Interesting)
Re:Thank God! (Score:1, Interesting)
I can’t comment but on two of those, first being the moon landing photos, which were of course not faked (and much evidence exists to support this).
Secondly, the fluoridation of water... if you look into the studies which were done to determine whether the effect of fluoride on teeth has any correlation to the occurrence of dental caries (tooth decay), you will find that (as any good researchers should) the researchers used a control group: the cavity rate amongst children in a number of cities in which the water was not fluoridated was also recorded. The result of the study? As predicted, the cavity rate declined in the cities where the water supply was fluoridated. And the cavity rate declined by a statistically identical amount in the cities where the water supply was not fluoridated. Conclusion: Fluoride prevents cavities. Wait, what?
P.S. As I work in the drinking water industry, I happen to know that fluoride is indeed a highly toxic waste, but dilution is the solution. That, and human bodies make really good filters.