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Showing results 1-11 of 33 for 'Water'

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    Science Tips, June 2014

    Update from the Weizmann Institute: Prof. Ilan Koren's research suggests that human activities may be producing larger, higher clouds with greater greenhouse effect. Using data from NASA's CERES and elsewhere, his findings indicate that, in pre-industrial times, there was less cloud cover over areas of pristine ocean than today.

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    Fire and Ice on Mars

    The dry riverbeds, lakes, and valleys on Mars indicate that water once flowed there – but when? And how? Weizmann's Dr. Itay Halevy and Brown's Dr. James Head III have an interesting new answer: short, violent periods of intense volcanic activity that warmed the planet and turned ice into running water, which later froze again.

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    Let it Rain

    New research by the Weizmann Institute's Dr. Ilan Koren and colleagues, including at NASA, indicates that the effects of human activity on the atmosphere are apparently leading to faster, heavier rain, which is more likely to be destructive.

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    Sea Change, Climate Change

    The ocean covers more than 70 percent of Earth's surface – and rising. As our weather changes, Weizmann Institute scientists are studying the ocean, using everything from microscopes to satellites, to understand its relationship with our climate. What will the future bring?

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    Making Spines from Sea Water

    Following up on earlier research - and using technologies that did not exist then - Profs. Lia Addadi and Steve Weiner answered long-held questions: where do sea urchins get the calcium ions they need to build their spines? The answer: they ""drink"" sea water, even as larvae. And it turns out that other organisms use the same surprising process.

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    “Coral on a Chip” Cracks Coral Mysteries

    The world's corals are dying, with tremendous effects on climate and ocean health – however, much about coral, and why it dies, is still unknown. Now, Dr. Assaf Vardi and his team have created a new experimental platform – a ""coral on a chip"" – that lets them grow coral in the lab to study the structures' complicated lives at microscale resolution.

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    Science Tips, January 2015

    Three updates from the the Weizmann Institute: Japan and Israel combine forces to advance brain research; new findings show that autistic brains are nonconformist; Peruvian schools adopt Weizmann's <em>Blue Planet</em> science education curriculum.