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Inserting the tube
This morning, I was driving with Andy to my
office, when he, while we were waiting for the last traffic light
before the highway, made some alarming noises. When I looked back,
I saw how he vommited in his famouse explosive manner. But also how
the tube was coming out of his mouth.
When the light turned green, I had no choice but to continue. I took
the first opportunity to park the car on the side of the highway.
I first removed the towel which covered him, luckily, non of his
clothes got dirty. And then I pulled out the tube through his nose,
and reinserted it. This was the first time, I actually put in the
tube. So far, Li-Xia always did it.
My car on the parking lot
Today is the first time I can see my car from where I am sitting behind
the desk, for the simple reason that the parking lot is almost empty.
The day after ascension day (which is a national holiday here) is one
of these days when many people take off.
One of my colleages has a wooden puzzle consisting
of a string of 27 cubics
which can be folded into a 3x3x3 cube. Each pair of cubics can rotate around
the centre of the sides with which they are connected. Besides the two end
cubics (E), which are only connected with one other cubic, there are
cubics that are connected to two other cubics on opposing sides (S),
and on adjacent sides (T). His puzzle can be described with the
string ESTSTSTSTTTTSTSTTTSTTSTTSE. There is only one way to fold this
into a 3x3x3 cube (ignoring different orientations and mirroring).
There are 2480304 different Hamilton paths in the
3x3x3 cubic graph. There are 11487 different puzzles like the one above, which
can be folded into a 3x3x3 cube. Of these, 3661 can only be folded in one way,
of which 10 are symetric (meaning, that the sequence of cubics is the same, no
matter on which side you start). The puzzle, described by the string
ETTTTTSTSTSTSTTTTTTTTTTTTE, can be folded in 142 different ways inside
the 3x3x3 cube (ignoring orientations and mirroring).
There are certain crossings in Enschede where often samples of
new products are handed out for free. Thing like candy bars,
or chips with less fat. Usually, I also try get some of these,
but to day I was handed a bag with frozen frence fries. This
time it seemed best to return the sample unused.
April 1999 |