October, 2009

Mythbusters busting MacGyver

The title says it all…

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How to mount ISO images

Stop burning CD/DVD’s right now, unless you really need. This is what you have to do to mount an ISO image from a CD, DVD or floppy. Make sure you have persmissions to mount (start a session as root, run “su”, or use sudo… whatever works for you)

First create a mount point, for instance:
mkdir -p /mnt/iso

Then mount the file in that directory with:
mount -o loop disk1.iso /mnt/iso

That’s all! now the content of the ISO file (the same file structure you would find in a burnt media support) is availabe in your filesystem.

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Simply… Bright!

Professor Lewin on a excellent lecture on light.
From RGB mix to rainbows, and far beyond to sunset…

Real worth watching… That’s the kind of things that reminds me how beatiful physics is.

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Inconceivable nature of nature

One of my favourite talks by one of my favourite physicists:

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Intuition Breakdown

A fantastic lecture by professor Walter Lewin (MIT) on how intuition can fool the brightest minds:

A full list of his (and others) lectures can be found at the MIT OpenCourse website:

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Physics for fun

We all spent some minutes/hours/(days?) of our lives doing entertaining mind games in waiting rooms, at the beach, toilet or any place else. Among the most popular are cross words, and math games like sudoku in all it’s variants. Well, that’s fine with those, but why not to go a step further in your brain jogging . Recently I learned about this old Russian book called “Physics for entertainment” by Yakov Perelman , which is now on public domain. Read more of Physics for fun

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Mogrify this!

This is the scenario:

1) Have a pocket camera with zillions of megapixels and an endless memory card which take clear pictures of an ant’s eyebrow, but each pictures is 5MB?

2) Want to post this pictures on a website/blog or send them through email to a friend bragging about your ultra high-tech camera?

3)Realized your email/website account don’t have enough space or it would take ages to upload all those photos at higher resolution?

There’s a solution for you out there by ImageMagic. Read more of Mogrify this!

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