If you were thinking of hitting the gym..

.. do it this way!

My favorite optical illusions.

Pesc's post inspired me to post some of my favorite optical illusions. Here...

1) Same Color Illusion.

copyright: Edward H Adelson and web.mit.edu

Look at the image above. Which of the squares A and B do you think is the darker shade of gray? A? Well, as it turns out in every such optical illusion, the answer is - None. They are the same shade. Exactly the same shade. :) The brain interprets the intensity based on the context. Ever wondered why sunspots are dark? As in, it's not as if those regions aren't bright and hot  themselves, so why do they appear dark? It's because they are embedded in much hotter and brighter regions of the Sun. This is exactly what is happening here. A seems darker because it has light squares around it. B seems light because it is surrounded by dark squares. I feel that the strength of this particular image is in the fuzzy boundary of the cylinder's shadow.  This means that B's shade merges into the light square's shade seamlessly fooling the brain into expecting that B must actually be the same shade as the light squares, only that they are slightly darker due to the shadow. But same as A? No way! well, it is. :) Perhaps the image below will help in visualizing it.

copyright: Edward H. Adelson and web.mit.edu

2) Blue or Green?

Copyright Akiyoshi Kitaoka 

You know what's coming. But you can't believe it, can you? The spirals that are clearly blue and green are actually neither blue nor green, but a combination (RGB=0,255,150). i.e. they are EXACTLY the same color. unbelievable? I know. This one actually makes one forget the first illusion entirely. I mean, it was difficult to believe that one, but surely this is simply impossible? Well, copy it to paint/photoshop and see the RGB values. Or, just crop some pixels from the blue and green spirals without their pink/orange context and juxtapose them. Or, if you don't really have to do it yourself to believe it, just head on to this article at the badastronomy blog and see for yourself. This really is stunning.

3) Ok, this one is fun. Look at  this one. Which direction is the (apparently nude, but I digress... ) spinning? Clockwise? Counter-clockwise?

No idea about copyright, but I found it here. Anyway, once you know your initial answer, look again. Perhaps looking at the shadow of the feet will do it the first time. The spinning direction flips instantly! It is actually much easier to flip the interpretation in your mind after you succeed in seeing it once. I can do it within 5-10 seconds now, and yet it is such a rush everytime it happens! :) Specially when I focus on her face. Suddenly the hair jumps from front to the back. :) I think this is essentially the same thing as flipping the 3-D interpretation of the Necker Cube in your mind. But, somehow this spinning girl makes it much more fun! :)

4) And now, the killer. Hollow mask illusion. I don't need to say anything as they say it all in the video.



Incredible, no? I have always wanted to have one of these masks at home. Specially this next one, with einstein. But it is definitely not worth 60 dollars....



Do you have any favorite illusions? Do share in comments.

Kata kata

raising my head from the posting-less abyss all of us seem to have been roaming in (except Pesc, of course.. who is keeping the every flavor flag flying high)...

New trailer for Raavan. This is actually surprisingly good. Surprisingly, because I was apprehensive about this song picturization.I was thinking something on the lines of "Ek lo ek muft", but this is actually pretty well done.

Cheeky program in controversial soup

Freshmen of the College of Letters and Science at University of California, Berkeley have a unique thing in their welcome kit this year....a cotton swab!

The Same Page program of this college gives new students something to talk about and discuss, say something like a book or a movie or an idea. This year, they’ll be exploring the theme of Personalized Medicine—the set of emerging technologies that promises to transform our ability to predict, diagnose, and treat human disease. Therefore, the cotton swab. Students can choose to return a sample of their cheek cells to be analyzed for three genes that are identified as "useful" for daily lives......the genes that help regulate the ability to absorb folic acid, tolerate lactose, and metabolize alcohol. Results of this nutritional genomic study will be confidential, however the sample donors through secret codes can access results of their samples.

Professor Jasper Rine, in-charge of this project, says “We want to get people to appreciate that there are things you can do that enhance your health based on the genes you have. There are concrete, actionable, specific steps that do enhance quality of life. This is the message of the post-genomic era.” Students will also get the chance to enter contests of creativity and talent and winners will be offered a more complete genetic analysis of their ancestry and health, with compliments from the personal genomics company 23andMe.

Medical science and biotechnology post the "Human Genome Project" is aiming towards better health care and effective clinical solutions. Though today, personalized medicine seems like a Utopian dream, hopefully someday it will be cost-effective and bring therapeutics suited to individual needs and responses.

This project, however, is not without it's share of controversies. Following a ban by FDA on retail selling of personal-genome-testing kit by Walgreens ( a US based drugstore chain), a Berkeley-based public interest organization is calling for the suspension of the UC project. They say "If selling genetic tests directly to consumers is a problem in the eyes of federal regulators, how can the University justify pushing them on thousands of eighteen-year-olds?"

The kit with the swab includes a consent form and details of the study to be undertaken, the advantages of the program and a confidentiality statement assuring prevention of misuse of genetic information. Where is the abuse??? If the donors consent to give samples for research, understanding what they are signing-up for....then why not?? Surveys and sample collections anyway take place for various research programs across the world...then why not this?? People can, for a minimal fee, send their DNA samples to laboratories for testing and genetic analysis, so why not allow the sale of these kits? Is it not up to the customer to think what they want, need, require and find useful??

Gravity defying ramp

Found this in a news article in Nature where they talk about the Best Optical Illusion of the Year. The winning illusion makes downward-sloping ramps appear to run uphill :)

Watch it here:



The competition, hosted by the Neural Correlate Society, is the "Oscars of perception," says society president Susana Martinez-Conde. The trophies are themselves visual illusions — wooden sculptures that look vastly different depending on the observer's point of view.

Now, isn't that cool!!!

I like what one finalist says..... "Illusions are cool and fun, but they're important because they are mistakes of the visual system that give us clues about how the underlying processes work when they're functioning properly."

Funny workings of the brain!

ISS-Atlantis transit over Sun

Image of the solar transit of the International Space Station (ISS) and Space Shuttle Atlantis 50 minutes before docking, taken from the area of Madrid (Spain) on May 16th 2010 at 13h 28min 55s UT.




Photolink via : Discover blogs and Thierry Legault

Click on image to view enlarged version.

Hrithik on Fire

Just watched this song promo on TV from the movie Kites.
Love the feel of the music and Hrithik's dance moves are awesome. He has always been a good dancer; this video re-affirms it!!

Take a look:



Looking forward to the complete dance sequence :)

and here's the full song if anyone's interested:

You got to be joking....!

Seriously, would someone please assess the science reporters of Times of India before hiring them! or maybe just hire editors who make sure that the news reaching out to masses is not a distorted truth!!??
Here's an article from today's paper:

"Eat breakfast to have a baby boy"

The article boldly claims "Want a baby boy? Well, then eat full breakfast and fatty diet during early pregnancy, suggests a new study ", but very conveniently forgets to mention that what the scientist is actually saying  is that their hypothesis is that diet, either directly or indirectly (e.g. through hormonal changes in the mother), influences the nutrient conditions within the reproductive tract of an early pregnant female. These changes in turn could alter the relative abilities of either X- or Y-sperm to effect fertilization. Alternatively, an altered uterine environment might lead to preferential survival of embryos of one sex over the other. Also, that these preliminary studies have been carried out only in mice! and several experiments need to be done to decipher the actual mechanism!

Normally I would have brushed away articles such as these labeling them as "preposterous" or search articles giving scientific evidence for their claims (if there is any tiny curiosity as to what the original claimant really wants to say). But, a conversation with a non-science/biology background person involving discussion on the various "health" articles led me to wonder how much such "half-truths" influence people's thinking.

Eat breakfast and high fat diet for a baby boy!! Maybe we should leak this news to television mom-in-laws, their bahus will have a good time eating! :P

Cannes via Ebert

Roger Ebert has been tweeting (and blogging) from Cannes, and I'm reading every word that he types, trying to fool myself into thinking that I am at Cannes myself. :) This (and hopefully some other upcoming posts on my own blog, if not here) post is to suggest everyone else who might be interested and lukkha enough that following Ebert might be a pretty good way of keeping an eye on Cannes.

For those, who are interested but not lukkha, this post and others in the series will point to whatever I find interesting. If I am able to pique your curiosity about any particular movie etc, you can always head on to Ebert's blog later.

So far he has talked about a possible animated movie nomination for next year's oscar, a french movie by the maker of "The Triplets of Belleville" called The Illusionist; an english movie with a rather intriguing concept directed by Hideo Nakata, the director of "The Ring", called Chatroom; the "Wall Street" sequel by Oliver Stone, called Wall Street: Money Never Sleeps; and a korean movie called The Housemaid.

Out of these The Housemaid seemed pretty interesting to me. Ebert mentions that some people are already speculating that it might be a frontrunner for Palme d'Or, though it is still quite early in the festival. Ebert's synopsis -

It takes place almost entirely within the huge modern house of a very rich man, and centers on the young woman he has hired as a nanny. It involves the man, his wife, his daughter, the older woman who runs his household, and the mothers of the wife and the nanny.

This is a house where living is an expensive form of art. The couple are smooth, calm, sophisticated. They value themselves very highly. The nanny forms a bind with their 7-year-old daughter, and assists the wife during a pregnancy with twins. More than that I choose not to specify.

But look at the mastery of the film's construction. The nuanced performances. The implacable deliberation of the plot. The way the house acts as a hothouse to force the growth of anger. And the film's unforgiving portrait of people damaged by great wealth. This is a thriller about the ideas people have of themselves.

The trailer is pretty exciting too. Thrilling, as the movie promises to be, with some pretty good music and interesting look.



This is another South Korean movie that seems exciting, after Mother that released earlier in the year and is one of the best movies that I have seen in 2010 so far. Hmmm... I should write about Mother one of these days.. perhaps for my individual blog.

Appropriate Technology

I guess a few of you might have already seen this. But for the benefit of the few ignorant others. Personally, I found this very inspiring. I hope you too.