United States

New ‘superlens’ focus 10 times more sharply than conventional lens

Washington, April 25 : A trio of American researchers has developed a “superlens” that can focus 10 times more sharply than a conventional lens.

How our eyes track a fluid bird’s flight

Birds in flightWashington, Apr 25 : While tracking a bird’s flight across the sky, the eye g

CIA video claims to show Syria nuclear evidence

Washington  - The Washington Post early Friday posted a link to a CIA video at the heart of charges by the US government on Thursday that Syria was building a secret nuclear reactor with the help o

Pakistan FO allays US’ fears, says negotiations only with compliant militants

Pak FO allays US’ fears, says negotiations only with compliant militants

‘Real-world’ concrete examples don't make math any easier

Washington, Apr 25 : The idea of teaching math using ‘real life’ concrete examples may not help students learn the subject, says a new study.

The study led by Jennifer Kaminski, researcher scientist at Ohio State University’s Centre for Cognitive Science has found that college students who learned a mathematical concept with concrete examples couldn’t apply that knowledge to new situations.

However, when they first learned the concept with abstract symbols, they were much more likely to apply that knowledge.

Is climate change driving Ice Age relics musk ox to extinction?

Washington, April 25 : The Wildlife Conservation Society (WCS) has started a new investigation into whether climate change is affecting populations of the rare musk ox.

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