Navin Kabra's Blog - Page 34 of 117 -

Wayward Alzheimer’s patients foiled by fake bus stop

Image by M@rg via FlickrDo you sometimes forget what you were just going to do? Alzheimer’s patients are like this all the time. They have decent long term memory but their short term memory is pretty bad. This does lead to many problems for the people who are taking care of them.

The Telegraph has this bittersweet article about a Alzheimer’s nursing home which had to come up with a creative way to prevent the patients from trying to take a bus home:

the centre was forced to rely on police to retrieve patients who wanted to return to their homes and families but had forgotten that in many cases neither existed any longer.

When asked to suggest a solution to this problem, I’m sure most people will think of compound walls and locked gates. They have come up with a much sweeter solution. Just outside the home, they created a fake bus stop. It looks like a regular bus stop with all the appropriate signs. With the small difference that no bus actually comes there.

“It sounds funny,” said Old Lions Chairman Franz-Josef Goebel, “but it helps. Our members are 84 years-old on average. Their short-term memory hardly works at all, but the long-term memory is still active. They know the green and yellow bus sign and remember that waiting there means they will go home.” The result is that errant patients now wait for their trip home at the bus stop, before quickly forgetting why they were there in the first place.

“We will approach them and say that the bus is coming later today and invite them in to the home for a coffee,” said Mr Neureither. “Five minutes later they have completely forgotten they wanted to leave.” The idea has proved so successful that it has now been adopted by several other homes across Germany.

See full article (found here)

What causes the smell after the first rain?

Do you remember the distinctive smell of the earth when it rains for the first time. (Marathi readers will be reminded of the song aala aala ga sugandh maaticha.) Ever wondered what causes it? Ever wondered what this smell is called? Obviously not.

But, by now you should know that if there is one thing I enjoy, it is to take a poetic concept and kill it by introducing the prosody of science.

Anyway, the smell is called geosmin. And, in the spirit of scientific enquiry, here are the gory details, from howstuffworks.com:

As it turns out, the smells people associate with rainstorms can be caused by a number of things. One of the more pleasant rain smells, the one we often notice in the woods, is actually caused by bacteria! Actinomycetes, a type of filamentous bacteria, grow in soil when conditions are damp and warm. When the soil dries out, the bacteria produces spores in the soil. The wetness and force of rainfall kick these tiny spores up into the air where the moisture after a rain acts as an aerosol (just like an aerosol air freshener). The moist air easily carries the spores to us so we breathe them in. These spores have a distinctive, earthy smell we often associate with rainfall. The bacteria is extremely common and can be found in areas all over the world, which accounts for the universality of this sweet “after-the-rain” smell. Since the bacteria thrives in moist soil but releases the spores once the soil dries out, the smell is most acute after a rain that follows a dry spell, although you’ll notice it to some degree after most rainstorms.

Why all religions have bizarre/stupid beliefs

Paul Graham has an essay on the “Lies we tell kids”. The whole essay is pretty interesting, but one of the sections contains this startling insight (a little long, but worth it):

Some parents feel a strong adherence to an ethnic or religious group and want their kids to feel it too. This usually requires two different kinds of lying: the first is to tell the child that he or she is an X, and the second is whatever specific lies Xes differentiate themselves by believing.

Telling a child they have a particular ethnic or religious identity is one of the stickiest things you can tell them. Almost anything else you tell a kid, they can change their mind about later when they start to think for themselves. But if you tell a kid they’re a member of a certain group, that seems nearly impossible to shake.

This despite the fact that it can be one of the most premeditated lies parents tell. When parents are of different religions, they’ll often agree between themselves that their children will be “raised as Xes.” And it works. The kids obligingly grow up considering themselves as Xes, despite the fact that if their parents had chosen the other way, they’d have grown up considering themselves as Ys.

One reason this works so well is the second kind of lie involved. The truth is common property. You can’t distinguish your group by doing things that are rational, and believing things that are true. If you want to set yourself apart from other people, you have to do things that are arbitrary, and believe things that are false. And after having spent their whole lives doing things that are arbitrary and believing things that are false, and being regarded as odd by “outsiders” on that account, the cognitive dissonance pushing children to regard themselves as Xes must be enormous. If they aren’t an X, why are they attached to all these arbitrary beliefs and customs? If they aren’t an X, why do all the non-Xes call them one?

This form of lie is not without its uses. You can use it to carry a payload of beneficial beliefs, and they will also become part of the child’s identity. You can tell the child that in addition to never wearing the color yellow, believing the world was created by a giant rabbit, and always snapping their fingers before eating fish, Xes are also particularly honest and industrious. Then X children will grow up feeling it’s part of their identity to be honest and industrious.

This probably accounts for a lot of the spread of modern religions, and explains why their doctrines are a combination of the useful and the bizarre. The bizarre half is what makes the religion stick, and the useful half is the payload.

I am not sure I buy the whole logic of the argument. But it certainly made me think and possibly view religion in a different way.

I spent a lot of my teenage years thinking of religion as a load of crap for weaker minds. Later, I read about how Tilak used Ganesh Chaturthi very effectively to bring people together. That got me thinking about the social value of religion. Here I am using “social” in the “making friends” sense of the word (not the “charity” sense of the word). Religion is the mother of all social networks.

In grad school, I would have arguments with my friend Frank, who used to go ga-ga over religion. He pointed out to me how many major artistic and architectural achievements over the centuries have been achieved because of the backing of religion.

And now Paul’s idea of separating religion into things that make it stick and the payload resonates with my view of religion. Basically, instead of focusing on the silly rituals that are the most visible aspects of any religion or specific religious activity, think instead about the payload. Think about what substantial things can be (is being) achieved (intentionally, or unintentionally).