Peeking Into The Mysteries Of Superconductivity

Peeking Into The Mysteries Of Superconductivity

Superconductors are materials that conduct electricity with no resistance. Electricity comes from electrons traveling through wire conductors. Those electrons bumping into each other generate an…
Where Do Most Meteorites On Earth Come From?

Where Do Most Meteorites On Earth Come From?

Meteorites are a major tool for knowing the history of the solar system because their composition is a record of past geologic processes that occurred while they were still incorporated in the parent…
How Bacteria Recognize Kin

How Bacteria Recognize Kin

A report in this week's issue of Science describes a set of genes that enable members of the bacterial species Proteus mirabilis to tell the difference between kin and strangers. The bacteria engage…
Epigenetics and Neo-(Neo-)Lamarckism.

Epigenetics and Neo-(Neo-)Lamarckism.

A very brief comment on a complicated topic... New Scientist has a story in the current issue about epigenetics -- differences in gene expression that are not due to changes in the gene sequences…
A Genetic Variation For Teen Tobacco Addiction?

A Genetic Variation For Teen Tobacco Addiction?

Common genetic variations affecting nicotine receptors in the nervous system can significantly increase the chance that European Americans who begin smoking by age 17 will struggle with lifelong…