Wyllie and Dr. Gardner, it appears that the difference in their permeability equations may arise from their use of a term for tortuosity. I have avoided this mainly by allowing for the effect of ...

The gas permeability of the medium can be easily calculated by recording the gas chamber pressure difference over time through the sensor and performing a least-squares fit to the recorded ...

Data are accumulating that emphasize the important role of the intestinal barrier and intestinal permeability for health and disease. However, these terms are poorly defined, their assessment is a ...

Wait! There's something even more important about Maxwell's equations. You can use these to show that an oscillating electric field creates a changing magnetic field, and this changing magnetic ...

Sir James Clark Ross discovered magnetic north pole in 1831 in northern Canada. British scientists have recently revealed that Earth's magnetic north pole is drifting towards Russia at an ...

Companies and collectors alike love to brag about their anti-magnetic watches and how many gauss they can withstand. If you’ve wondered what that means and why it’s a big deal, you’re surely not alone ...

We analyze the stability range of these solutions in terms of external magnetic field and magnetocrystalline anisotropy. We calculate minimum energy paths and homotopies (continuous transitions) ...

In mid-December of 2024, scientists officially updated the World Magnetic Model (WMM), which helps keep track of our planet’s magnetic north and its chaotic and relatively unpredictable movements.

Scientists have released a new model tracking the position of the magnetic north pole, revealing that the pole is now closer to Siberia than it was five years ago and is continuing to drift toward ...

Emily is an experienced commerce writer and editor, with bylines in Allure, Byrdie, InStyle, RealSimple, Shape, and more. Always in pursuit of the best reviewer-vouched products, she covers topics ...

Executive Editor David Carnoy has been a leading member of CNET's Reviews team since 2000. He covers the gamut of gadgets and is a notable reviewer of mobile accessories and portable audio ...