Using a special neutron imaging technique, scientists found no evidence of denser water near Nafion surfaces, which contradicts the idea that EZ water is much denser than regular water.
Scientific Claim
Neutron radiography studies show no detectable density differences near Nafion surfaces within the instrument's resolution of 100 micrometers, contradicting Pollack's hypothesis of a 10% higher density EZ phase.
Evidence Quality Assessment
Claim Status
appropriately stated
Study Design Support
Design supports claim
Appropriate Language Strength
definitive
Can make definitive causal claims
Assessment Explanation
The study presents direct experimental evidence from neutron radiography that contradicts Pollack's density hypothesis. The language 'no detectable density differences' accurately reflects the experimental findings.
Source Excerpt
“In the experiment, a 2 mm wide quartz glass cell was filled with distilled water and two strips of Nafion were inserted. [...] As can be clearly seen, no density differences are observable near the surface, at least within the 100 m resolution of the instrument.”
Evidence from Studies
Supporting Evidence (1)
The study describes a neutron radiography experiment specifically designed to test Pollack's density hypothesis. The results showed no detectable density differences within the instrument's resolution, directly contradicting Pollack's claim of a 10% higher density phase.