Soup can reopens mystery of doomed Franklin Expedition

(PhysOrg.com) -- Lead levels that are "off the scale" have been confirmed after tests were done this morning on the lid of a soup can dating back more than 150 years. The findings reopen the mystery surrounding the cause ...

Silicon can be made to melt in reverse

Like an ice cube on a warm day, most materials melt -- that is, change from a solid to a liquid state -- as they get warmer. But a few oddball materials do the reverse: They melt as they get cooler. Now a team of researchers ...

Cleaning with bleach could create indoor air pollutants

For generations, people have used chlorine bleach to clean and disinfect their homes. However, researchers have now discovered that bleach fumes, in combination with light and a citrus compound found in many household products, ...

Self-assembling proteins can store cellular 'memories'

As cells perform their everyday functions, they turn on a variety of genes and cellular pathways. MIT engineers have now coaxed cells to inscribe the history of these events in a long protein chain that can be imaged using ...

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