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- Health & Medicine
Angiogenesis Factors: Tracking down the suspects in blood vessel growth near tumors
Tumors enlist certain bone marrow cells in efforts to grow new blood vessels for self-nourishment.
- Physics
15 = 3 × 5: Photons do their first quantum math
Physicists have performed the first calculation involving manipulation of the quantum states of photons, another step on the road to optical quantum computers.
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19907
I was disappointed to see optical quantum computers described as “exponentially faster than ordinary computers” in your article. Despite frequent misuse in the lay press, “exponentially” does not mean “a whole bunch.” It refers to a specific mathematical functional relationship, not merely a comparison of two numbers.
