science

Steve Woz on our closed source education system

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A very succinct message from Steve Woz on how our education system(s) kills creativity in its quest for a one size fits all approach to education…

This is so true all over the world… the waste of human potential is the greatest waste

Via EEtimes and DangerousPrototypes

Earth Day & Carl Sagan’s Pale Blue Dot

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This gives me goosebumps every time I watch it…. Happy Earth Day !

 

Mumbai surgeons perform knee surgery replacements using an iPod touch

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Mumbai surgeons perform knee surgery replacements using an iPod touch – http://pulsene.ws/1nGYJ

If neurons talk using RFID…are we zapping our brains with our phone yapping?? !!

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I stumbled across this article today about how neurons in brains do not rely just on physical connections to talk to each other. They interact with each other with their version of electro-magnetic coupling similar to Near Field Communication (NFC)or RFID.

NFC or RFID type technologies can be prone to interference from various gadgets or devices. This new discovery about neural communication may bring into focus how electronic devices affect our brains and cognitive abilities. Is it time to think about how our society designs and uses the billions of cell phones ?

Here is the article from Caltech:

Neurobiologists Find that Weak Electrical Fields in the Brain Help Neurons Fire Together – Caltech Media Relations.

The economic value of nature

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Governments are finally waking up to the economic value of nature… but is it too late?
Check out this BBC article titled India and Brazil head move to ‘green’ economic future . Dr. David Suzuki has spoken about this extensively earlier

Leave it as it is…

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Leave it as it is. You cannot improve it. The ages have been at work on it, and man can only mar it….

President Theodore ‘Teddy’ Roosevelt commenting on seeing the Grand Canyon

Read more about the US National Parks and President Teddy Roosevelt at http://www.nps.gov and  http://blogs.nashualibrary.org/reference/2009/09/leave_it_as_it_is_1.html

TED goes to India

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Just found out that TED is organizing a TED India conference (November 4-7, 2009) in Mysore at the Infosys campus. Check it out here

Star-Trek Traction beam discovered

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The traction beam cannot lift your car or boat but it can move really really small objects. Who knows this may solve other mysteries like dark energy :) Here is the blurb from the article in ScienceDaily:

A team of Yale University researchers has discovered a “repulsive” light force that can be used to control components on silicon microchips, meaning future nanodevices could be controlled by light rather than electricity. The team previously discovered an “attractive” force of light and showed how it could be manipulated to move components in semiconducting micro- and nano-electrical systems—tiny mechanical switches on a chip. The scientists have now uncovered a complementary repulsive force.

Rainforests may pump winds worldwide

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The NewScientist has an article titled Rainforests may pump winds worldwide, which may shake up the climate and environmental skeptics. It seems large forests are the heart, lungs and kidneys of our living planet. Large forests may be responsible for pumping moisture laden air across continents helping rainfall far inland…

Cool factoid of the day from the article: “More moisture typically evaporates from rainforests than from the ocean. The Amazon rainforest, for example, releases 20 trillion litres of moisture every day.

How can forests create wind? Water vapour from coastal forests and oceans quickly condenses to form droplets and clouds. The Russians point out that the gas takes up less space as it turns to liquid, lowering local air pressure. Because evaporation is stronger over the forest than over the ocean, the pressure is lower over coastal forests, which suck in moist air from the ocean. This generates wind that drives moisture further inland. The process repeats itself as the moisture is recycled in stages, moving towards the continent’s heart (see diagram). As a result, giant winds transport moisture thousands of kilometres into the interior of a continent.

Happy Birthday! The Gasoline-Electric Hybrid Car is 100 Years Old

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Treehugger has a great article on the hybrid car technology turning 100. Actually about a 100 years ago there were more electric or hybrid cars than pure gasoline / petrol driven cars.

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