Evaluation of Scholarly Sources

These two scholarly sources provide the substance that created the controversy between Frank Wilczek and Patrick Bruno. The first source is from Science News and the article is about Wilczek new theorem about how a perpetual machine might be possible to create using time crystals. At the time the article was written Wilczek had not yet written his paper about his theory and submitted it in Physics Review Letters. The second source is from Physics Review Letters and it is a theorem published by Patrick Bruno is disprove Wilczek's theory about time crystals. Bruno's rebuttal to Wilczek's theory was published in Physics Review Letters in the same issue as Wilczek's theory.

Rajeshodayanchal "Scholar" 02/29/2012 via wikimedia.org Creative Commons Attribution-Share Alike 3.0 Unported license

Source 1: Crystals in time may be possible

• What is its purpose? The purpose of this particular source is to inform the public about an upcoming event that will be hitting the physics community.
• How and where is it published? This source was published in Society for Science and the Public. It was published through an editorial even though this is a journal.
• What kinds of sources does it cite? It cited no sources but provided an editors note and a link for more information.
• Who is the author? The author is Alexandra Witze.
• Who is its intended audience? The intended audience is the readers of the journal.
• How did I find it? I found it through JSTOR.

Source 2: Impossibility of Spontaneously Rotating Time Crystals: A No-Go Theorem

• What is its purpose? The purpose of this source is to be a part of a debate about time crystals and whether or not theoretically it is possible.
• How and where is it published? It was published in Physics Review Letters and it was published using peer review.
• What kinds of sources does it cite? The source cited 32 references Bruno used in his paper. These sources can be found here.
• Who is the author? The author is Patrick Bruno
• Who is its intended audience? The intended audience is people who subscribe to Physics Review Letters and have some interest in the field of theoretical physics.
• How did I find it? I found this source using web of science.