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Rubber ducky you're the one...
Courtesy Mark RyanBoy, times must be getting tough if NASA’s latest endeavor is any indication. Researchers from the space agency recently dropped a whole slew of rubber ducks into openings in Greenland's Jakobshaven Glacier in hopes of understanding how and where melt waters from the ice sheet ends up in Baffin Bay. They’re also trying to understand why glaciers increase their speed during the summer months. The Jakobshaven Glacier, which is suspected of calving the iceberg that sank the Titanic in 1912, is Greenland’s fastest moving glacier. The current thinking is that melt water forming on top of the ice flow during the summer months travels down narrow tubes called moulins to the glaciers base where it acts as a lubricant thus speeding up the ice sheet's movement. This isn’t exactly rocket science, is it? Anyway, each little ducky carries a label with the words "science experiment" and "reward" printed on it in three languages, along with an email address. The researchers hope that those who come across the toy quackers will contact them with information about when and where they found them. So far no one has gotten back to NASA but agency officials are confidant when they do it will add to our understanding of glaciers and their role in rising sea levels. So why has NASA has resorted to using such a low-tech approach? One source claims it's because a previous test using a metallic probe failed to return any data. Another source claims the probe is being used in conjunction with the rubber bath toys. Whatever the case it looks duck hunting season has opened.
SOURCES and LINKS
CNN story
NetworkWorld story
Discovery Channel story
Animation about Jakobshaven Glacier
If you were a scientist, which scientist would you rather be?
The guy who invents and tests new high-powered water guns?
or
The guy who invented the synthesizer guitar?
It’s a really tough call...
The British government is encouraging schools to allow young boys to play with toy guns. Their studies have shown that such play helps boys’ development, by allowing them to experiment with risk-taking behavior in a safe environment. This in turn helps their intellectual development.
Lately it seems like no newscast is complete without a story about a recall of toys that could be lead-poisoning risks to kids. We get the details of what toys are impacted, but we rarely get the details on how they’re dangerous. Do you know the threats lead-tainted toys pose to kids’ health?
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Tasty, but possibly dangerous: The US government has banned or limited lead in consumer products—like children’s jewelry or paint on toys—but toys made in other countries may not meet US safety standards. (Photo courtesy Tim Brown, via Flickr)
Is lead really a big problem?
The CDC estimates that 890,000 US children between the ages of one and five have high levels of lead in their blood. Small children put toys, fingers, and other objects in their mouths—and expose themselves to lead paint and dust if there’s any present. Lead is invisible and has no smell. And most children with elevated blood lead levels have no symptoms. The only way to tell if a child has been exposed is to have his or her blood tested. Small amounts of lead can cause brain and nervous system damage, slowed growth, or hearing problems. Larger amounts can cause kidney damage, coma, or even death.
Caregivers should be especially careful of toys made in other countries and imported into the US, and antique toys and collectibles passed down through generations.
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A bigger worry: Despite all the hype over lead-contaminated toys, lead dust is a bigger risk for kids. Before 1978, lead-based paint was used in many homes. When the paint is disturbed—through daily wear-and-tear or remodeling projects—lead dust gets created. And kids eat or breathe in the dust. (Photo courtesy Geekly, via Flickr)
What can you do?

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