New research, published by the National Physical Laboratory (NPL), takes a significant step towards changing the international definition of the kilogram which is currently based on a lump of platinum-iridium kept in Paris. NPL has produced technology capable of accurate measurements of Planck's constant, the final piece of the puzzle in moving from a physical object to a kilogram based on fundamental constants of nature. The techniques are described in a paper published in Metrologia on the 20th February.
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Tag Archives: the-puzzle
Feed SubscriptionSuperconductivity: The puzzle is taking shape
By destabilizing superconductivity with a strong magnetic field, the electrons of a "high temperature" superconductor align into linear filaments. This phenomenon has been demonstrated by a team of researchers at the CNRS Laboratoire National des Champs Magnetiques Intenses. Published in Nature on the 8 September 2011, these results add a new piece to the puzzle that condensed-matter physicists have been trying to put together for nearly twenty-five years.
Read More »Leap Year, Episode 9: Kind of a Genius
With everyone on board with Jack and Bryn's plans, the group just needs two small pieces of the puzzle: money, and a possibly insane Russian genius who lives somewhere in the woods.
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