Blog of Leonid Mamchenkov

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Entries Tagged ‘science’

The known universe

I’ve shared and favorite’d this video before, but it’s worth another time.  Every time you get depressed or pissed off about something, every time someone gets to you, or you think something horrible happened, just watch this video.

That’s the known universe for you.  And if you think about how small we are compared to our planet, and how small our planet compared to some other, and how small our galaxy compared to the other ones, and so on and so forth, and then think about your problem again -- doesn’t it look tiny and beyond microscopic now?

35 Years of Microscope’s Photography

Microscope : Carrot Seeds

Microscope : Carrot Seeds

Wired Science runs a post linking to tonnes of fascinating photographs done through a microscope lens.  Little things cropped and magnified look like matters from the other planets.  And only the best of the best of the best are selected…

Black people in science and innovation

It’s been a few times already that I heard the argument that “black people made no contribution to computer science“.  I’ve also heard a few alternative versions, which were less or more specific, varying from “African blacks” and “no innovations“, to “black women” and “no contribution to science“.

Depending on the overall direction of the discussion, variation of the argument, and sensibility of the opponent, it can be very easy or rather impossible to reason. For example, an argument like “there is not one black programmer in the world” is pretty trivial to destroy.  There are at least a few respectable Perl Monks of the black race.  Over the last few years, I personally have been in contact (IM, email, phone) with a few black programmers and system administrators.  On the other hand, a request for a name or a biography of a black computer scientist might be much harder.  I am not very good with names and biographies, and I don’t know many scientist by name at all.  Picking representatives of a certain race using my own memory is close to impossible.

So, I asked The Mighty Google for a few names and biographies, and it replied.  Here are a few links that I picked from the results:

I have to admit that I was a little bit surprised by the low number of results.  Finding the above weren’t very easy.  Also, many links were very outdated.  Sometimes I’d come across a quote that slowed me down before I could “sink it in”.  Here are a couple of such examples:

one quarter of one percent (.25%) of computer scientists are black

from the “Computer Scientists of the African Diaspora” page, which seems to be from the 1990s.

Throughout the United States, there are only 32 African-American computer science (CS) professors.

from the “A Model for Department Diversity” article, which was posted in 2004.

I think that the above references are enough to convince any sane person that both science and innovation have benefited from black people.  Whether the benefits were to the same degree as those of the other races is a totally different question.  I am not going to debate it now, but perhaps I will come back to it later.

(NOTE TO MYSELF for when and if I do: consider that most computer science innovation is happening in the USA [obviuos, but citation needed], and that black people make only about 12% of the USA population [Wikipedia]. )

Pandora – the music box

Listening to Raven’n'Blues show from BFBS I learned about Pandora.

Pandora is a result of Music Genome Project. Basically, what they do is analyze a lot of music for rythms, instruments, vocals, and a whole lot of other criterias and then help you find the music that you like.

Excellent science project with perfect end user appliance. You get a single box to fill in – write the band or album that you like and you’ll get a whole bunch of music that matches your taste. I’ve been playing around it for half a day only and I have to say that it works out great. Maybe my taste is too simple though. But anyway, I’ve heard many songs that I’ve heard before as well as a lot of new stuff.

You don’t even have to register to try it out for an hour or so. If you’ll listen for longer, it will ask you to create an account, which is as simple as giving your email address, adding a password, and specifying your birth year (you can lie, ma). They also aks for a ZIP code, which is USA specific, but you can always use the Beverly Hills’ 90210.

Enjoy! Let it be my Christmas present to all of you.

Update: You can also save your favourites to a list, share your stations, and do a lot of other cool stuff. My favourites page is here.

Daily del.icio.us bookmarks

Let’s start with a few Google-related links:

[Read the rest of this entry...]

Andrei Sakharov

Andrei Sakharov (1921-1989) was a Soviet physicist who became, in the words of the Nobel Peace Committee, a spokesman for the conscience of mankind. He was fascinated by fundamental physics and cosmology, but he had to spent two decades designing nuclear weapons. The acknowledged father of the Soviet hydrogen bomb, he contributed perhaps more than anyone else to the military might of the USSR. But it was his top secret experience as a leading nuclear expert that was instrumental in making Sakharov one of the most courageous critics of the Soviet regime, a human rights activist and the first Russian to win the Nobel Peace Prize. He helped bring down one of history’s most powerful dictatorships.

The quote is from this site. If you are not familiar with this person, I suggest you browse through the link.

Irony in science or a bad example of Post Hoc

While reading through this excellent website I came across an article about Post Hoc logical fallacy. To freshen your memory, this article describes Post Hoc fallacy as follows:

A Post Hoc is a fallacy with the following form:

1. A occurs before B.
2. Therefore A is the cause of B.

There are also a few examples that help to understand this fallacy. Among these examples there is this one:

Bill purchases a new PowerMac and it works fine for months. He then buys and installs a new piece of software. The next time he starts up his Mac, it freezes. Bill concludes that the software must be the cause of the freeze.

I couldn’t help the smile. In the scope of logic as a science this example perfectly illustrates the point. But in the scope of computer science this quote would be a good example of the opposite. In other words, if you computer worked fine for months and than you installed a new piece of software on it, and it started to freeze – chances are that the software is the cause of problem.

Ironical, isn’t it?