Tag: John Howell

Particle measurement sidesteps the Uncertainty Principle

Particle measurement sidesteps the Uncertainty Principle

August 6, 2014

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Particle measurement sidesteps uncertainty principle

Particle measurement sidesteps uncertainty principle

August 6, 2014

Quantum mechanics imposes a limit on what we can know about subatomic particles. If physicists measure a particle’s position, they cannot also measure its momentum, so the theory goes. But a new experiment has managed to circumvent this rule—the so-called uncertainty principle—by ascertaining just a little bit about a particle’s position, thus retaining the ability to measure its momentum, too.

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“Compressive sensing” provides new approach to measuring a quantum system

“Compressive sensing” provides new approach to measuring a quantum system

June 27, 2014

Physicists have shown that a technique called compressive sensing offers a way to measure both variables at the same time, without violating the Uncertainty Principle.

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Professor sings “I Have Failed My Physics Final”

Professor sings “I Have Failed My Physics Final”

January 21, 2014

Physics professor John Howell records a Les Miserables parody to motivate his Physics 121 students to attend workshops.

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How To Hide a Boy – or Maybe a Satellite

How To Hide a Boy – or Maybe a Satellite

June 7, 2013

With the help of his 14 year-old son, Benjamin, John Howell built three simple but surprisingly effective optical cloaking devices with inexpensive, off-the-shelf materials.

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