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The moon has no global magnetic field yet  Apollo astronauts found magnetized rocks on the lunar surface.

A new hypothesis proposes a mechanism that could have generated a magnetic field on the moon early in its history. The 'geodynamo' that generates Earth's magnetic field is powered by heat from the inner core, which drives complex fluid motions in the molten iron of the outer core.  The moon is too small to support that type of dynamo but the researchers write in Nature that an ancient lunar dynamo could have arisen from stirring of the moon's liquid core driven by the motion of the solid mantle above it.

Anecdotes are not data, the saying goes, but people sure believe them.  An article in JAMA says doctors should consider the use of narrative, patient stories and testimonials, to boost public acceptance of health issues such as cancer screenings and vaccination mandates.

They advocate "counternarratives" to neutralize personal stories, think celebrities in the news media sharing their health knowledge, that seek to support quackery like homeopathy and anti-vaccine beliefs, along with narratives about the process of scientific study and discovery, to unmask the often hidden work of researchers and guidelines committees.

If you are of a certain age, perhaps your parents told you to eat slowly. They may have said something about better digestion but if you were one of many poor people it also had to do with feeling fuller on less food. 

Common wisdom was your brain did not keep up with your stomach so if you slowed down, your brain had time to realize the stomach was full. In general experience, that seems to hold up. You rarely see obese people who eat really slow.(1) Two new studies by researchers at the University of Rhode Island bear this out and found that men eat significantly faster than women, heavier people eat faster than slimmer people and refined grains are consumed faster than whole grains, among other findings.

Scientists have found pristine clouds of the primordial gas that formed just after the Big Bang and it matches the composition made by predictions, which adds to direct evidence in support of the modern cosmological explanation for the origins of elements in the universe. Only the lightest elements, mostly hydrogen and helium, were created in the Big Bang. A few hundred million years passed before clumps of this primordial gas condensed to form the first stars, where heavier elements were forged. 

But astronomers have always detected "metals" (their term for all elements heavier than hydrogen and helium) wherever they have looked in the universe. 

Physicists have succeeded in taking a decisive step towards the development of more powerful computers; they were able to define two little quantum dots (QDs), occupied with electrons, in a semiconductor and to select a single electron from one of them using a sound wave, and then to transport it to the neighboring QD.

A single electron “surfs” thus from one quantum dot to the next like a fish on a wave. This manipulation of a single electron will also enable the combination of considerably more complex quantum bits instead of classical bits (“0” and “1” states).

During the last decade, the almost singular focus on CO2 has been something of a puzzle; leaving out methane, with 23X the warming impact of CO2, seemed like a mistake.