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I didn t give much thought to shipping until I started doing my PhD on whales and dolphins. Food magically appeared onto store shelves out of thin air, where I bought it. I don t think most of us give much thought to where our food comes from , but once I started paying attention how things get around, it was hard to stop

(PhysOrg.com) -- Just as NASA engineers test new rocket designs in computer studies before committing themselves to full prototypes, so physicists will often model matter under various circumstances to see whether something new appears. This is especially true of atomtronics, a relatively new science devoted to creating artificial tailored materials consisting of neutral atoms held in an array with laser beams, or atoms moving along a desired track under electric or magnetic influence. A new study shows how a simple "joystick" consisting of an adjustable magnetic field can create several new phases of atomtronic matter, several of them never seen before.

David Toms has been around long enough to realize that good play takes care of everything. That's especially true at the BMW Championship, where a strong week could pay big dividends.

Humanity does things with lasting impact: we can dam a river or make a plateau from a mountaintop.