"Magnetic cows" are visible from space

Planets without metal cores may be bad for life

merry submitted, created time 3 months 19 hours (space.newscientist.com)

Some planets beyond our solar system might be rocky like Earth, but lack its gooey metallic middle, a new study suggests. Such "coreless" terrestrial planets would not have magnetic fields, which would make them inhospitable to life as we know it.

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Researchers Use Magnetic Fields, Rather Than Drugs, to Control Cellular Signaling

Eric wu submitted, created time 10 months 1 week (www.sciencedaily.com)

Researchers at Children's Hospital Boston have developed a new "nanobiotechnology" that enables magnetic control of events at the cellular level. They describe the technology, which could lead to finely-tuned but noninvasive treatments for disease, in the January issue of Nature Nanotechnology (published online January 3).

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Interaction Between Weak Low-Frequency magnetic Fields and Cell Membranes

JacobE44 submitted, created time 1 year 2 days (www3.interscience.wiley.com)

It is still a matter of discussion whether very weak low frequency magnetic fields can have biological effect. Many papers have been published showing such effects, but very view have been replicated by independent groups. Another problem is that no widely accepted biophysical model exists that can explain the interaction between weak magnetic fields and living matter. This paper tests a proposed quantum mechanic interaction model for an ion-channel protein in isolated cell membranes. It shows very nicely the validity of the model

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