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- Researchers make quantum processor capable of factoring a composite number into prime factors
- Massachusetts butterflies move north as climate warms
- New space-age insulating material for homes, clothing and other everyday uses
| Researchers make quantum processor capable of factoring a composite number into prime factors Posted: 19 Aug 2012 12:37 PM PDT Computing prime factors may sound like an elementary math problem, but try it with a large number, say one that contains more than 600 digits, and the task becomes enormously challenging and impossibly time-consuming. Now, a group of researchers has designed and fabricated a quantum processor capable of factoring a composite number -- in this case the number 15 -- into its constituent prime factors, 3 and 5. Factoring very large numbers is at the heart of cybersecurity protocols, such as the most common form of encoding, known as RSA encryption. |
| Massachusetts butterflies move north as climate warms Posted: 19 Aug 2012 12:37 PM PDT A new study shows that, over the past 19 years, a warming climate has been reshaping Massachusetts butterfly communities. Subtropical and warm-climate species -- many of which were rare or absent in Massachusetts as recently as the late 1980s -- show sharp increases in abundance. At the same time, more than three quarters of northerly species -- species with a range centered north of Boston -- are now declining in Massachusetts, many of them rapidly. |
| New space-age insulating material for homes, clothing and other everyday uses Posted: 19 Aug 2012 12:34 PM PDT A major improvement in the world's lightest solid material and best solid insulating material may put more of this space-age wonder into insulated clothing, refrigerators with thinner walls that hold more food, building insulation and other products. |
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