Exhibiting Science September 19, 1998 | Volume 154 | Number 12 Cover: Children cavort in a kaleidoscope of mirrors, an exhibit designed to demonstrate how light is reflected.  Increasingly, museums—especially science museums—are employing a scientific approach to making exhibits both appealing and informative. (Photo: Amy Snyder/The Exploratorium.)

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News of the Week:

Immigrants Go from Health to Worse

New studies and a national review conclude that immigrants enjoy physical and mental health advantages over native-born U.S. residents, but health declines with length of exposure to U.S. society.

 

Do blind people track sounds better?

When only one ear is used, some blind people locate the origins of sounds more accurately than people who can see.

 

Birds can remember what, where, and when

Scrub jays can remember not only what kind of food they hid and where but also when they buried it.

 

PIC and choose—a toxic-imports accord

Representatives of 62 nations signed a new Rotterdam Convention to control the export of chemicals into countries that decide they cannot ensure the compounds’ safe use.

 

Jet would skitter across globe in 2 hours

A proposed aircraft could fly between most points on Earth in 2 hours by skipping along the top of the atmosphere.

 

New lead record is no honor

More than 70 percent of toddlers and preschoolers coming to an inner-city Philadelphia clinic had excess concentrations of lead in their blood.

 

Mooning over the dust rings of Jupiter

New images taken by the Galileo spacecraft reveal that dust blasted off four tiny moons of Jupiter during collisions with interplanetary debris continually replenish the planet’s faint dust rings.

 

Fish enzyme flexes to adapt to the cold

An enzyme found in Antarctic fish has evolved to accommodate saltwater temperatures below 0° C.