As such, I need to do three reports that were actually due... today. One of them is on blood pressure and respiratory rate. All we had to do for that experiment was get someone to run up and down a flight of stairs a few times, and then measure his blood pressure. So, the rest of us got to sit in the lab and play with sphygmomanometers.
That lesson was incredibly boring, so you really can't blame us for what we did. Of course we did the usual experiments, like finding the "blood pressure" of a water bottle, and trying on the sphygnomanometer in various configurations to see what difference there would be. Eventually, we decided to do an actual (but thoroughly non-rigorous) experiment. We tried to determine the effect of thinking different things on blood pressure.
So there were five of us. All male. Each of us measured our blood pressure in turn, while thinking about nothing, while doing a moderately challenging maths problem, and while thinking happy thoughts. Happy thoughts specifically being typical testosterone-fuelled stuff.
Now, you would probably expect the blood pressure readings to be highest for that last one. And it was, for the other four guys. For some reason, my blood pressure spiked while doing a differentiation problem, and it lowered significantly when I was thinking about...stuff.
I have a reasonable explanation for the maths problem. It has been so long since I tried doing any math beyond simple arithmetic that I probably panicked when the answers didn't come to me right away.
I don't know, I think I have developed some kind of weird parasympathetic response to sexual imagery. It's probably not a good idea to go into detail about this stuff here, so I'll just say that I hope it was an anomalous reading.
Enough about that. My baroreflex to fun stuff is none of any of your concerns. So on Saturday, I went to the science center with some of the KI circle. Not a lot of us could make it, probably because of the mid-years. We didn't stay very long either. Still, it was great. The only problems with the Da Vinci exhibition were that it wasn't very big, and all the flying machines seemed to have frames of solid wood.
That irked me somewhat, because I would've thought that some time between discovering the codices and recreating the inventions, someone would have decided to use a thinner and lighter frame. I mean, it's not like heavy teak was the only wood available during renaissance Italy. Venice was a center of trade, so one would expect plenty of other building materials to have been known, especially to artists and inventors. If I didn't know that those huge contraptions were supposed to be flying devices, I'd have thought that they were gigantic, ornate chairs.
Everything else was very cool. A bit hard to appreciate at first, because all the gear systems and force distribution devices are quite commonplace in the modern world. It was a bit like reading The Origin; one must first realise that these ideas were thought up long before horses were considered fancy.


-Joe